# What Hospitals Charge: Maryland

For the same procedure: each hospital's cash price, its list price, and what each insurer has agreed to pay it — side by side for every hospital in Maryland, or for one metro area at a time.

- hospitals with prices (of 45): 29
- health systems: 22
- procedures mapped: 170
- insurers and networks: 71
- newest price file: 2026-09-17

Web page, with the maps: https://medicalpricetransparency.netlify.app/hospitals/maryland/

## Procedures

The range is each hospital's typical commercial price (the median of what commercial insurers pay it), lowest hospital to highest. The maps carry every hospital's cash price, list price and each insurer's rate.

| Group | Procedure | Code | Commercial price range | Hospitals | Map |
|---|---|---|---|---|---|
| Cancer screening | Diagnostic mammogram, both breasts | 77066 | $578 to $1,682 | 10 | [map](hospital_77066.html) |
| Cancer screening | Diagnostic mammogram, one breast | 77065 | $560 to $1,286 | 9 | [map](hospital_77065.html) |
| Cancer screening | Screening colonoscopy (average risk) | G0121 |  |  | [map](hospital_G0121.html) |
| Cancer screening | Screening mammogram (routine) | 77067 | $603 to $1,385 | 9 | [map](hospital_77067.html) |
| Digestive procedures | Colonoscopy (diagnostic) | 45378 |  |  | [map](hospital_45378.html) |
| Digestive procedures | Colonoscopy with biopsy | 45380 |  |  | [map](hospital_45380.html) |
| Digestive procedures | Colonoscopy with polyp removal | 45385 |  |  | [map](hospital_45385.html) |
| Digestive procedures | Colonoscopy with ultrasound | 45391 |  |  | [map](hospital_45391.html) |
| Digestive procedures | Upper endoscopy (diagnostic) | 43235 |  |  | [map](hospital_43235.html) |
| Digestive procedures | Upper endoscopy with biopsy | 43239 |  |  | [map](hospital_43239.html) |
| Emergency & hospital | Emergency room visit (high complexity) | 99284 | $400 to $669 | 10 | [map](hospital_99284.html) |
| Emergency & hospital | Emergency room visit (low complexity) | 99282 | $121 to $167 | 10 | [map](hospital_99282.html) |
| Emergency & hospital | Emergency room visit (moderate complexity) | 99283 | $240 to $334 | 10 | [map](hospital_99283.html) |
| Emergency & hospital | Emergency room visit (most complex) | 99285 | $558 to $1,110 | 10 | [map](hospital_99285.html) |
| Emergency & hospital | Emergency room visit, minimal | 99281 | $80 to $240 | 10 | [map](hospital_99281.html) |
| Emergency & hospital | Hospital bedside visit, high complexity (per day) | 99233 |  |  | [map](hospital_99233.html) |
| Emergency & hospital | Hospital bedside visit, moderate (per day) | 99232 |  |  | [map](hospital_99232.html) |
| Emergency & hospital | Hospital observation (per hour) | G0378 | $83 to $180 | 10 | [map](hospital_G0378.html) |
| Eye care | Cataract surgery with lens implant | 66984 |  |  | [map](hospital_66984.html) |
| Eye care | Laser fix for cloudy vision after cataract surgery | 66821 |  |  | [map](hospital_66821.html) |
| Heart tests | EKG tracing only (no reading) | 93005 | $44 | 1 | [map](hospital_93005.html) |
| Heart tests | Electrocardiogram (EKG) | 93000 | $206 | 1 | [map](hospital_93000.html) |
| Heart tests | Heart catheterization (left heart) | 93452 |  |  | [map](hospital_93452.html) |
| Hospital stays (inpatient) | Alcohol or drug dependence (no rehab therapy), without major complications (hospital stay) | 897 | $6,940 | 1 | [map](hospital_897.html) |
| Hospital stays (inpatient) | Alzheimer's, Parkinson's and similar brain conditions, without major complications (hospital stay) | 57 |  |  | [map](hospital_57.html) |
| Hospital stays (inpatient) | Anemia and other red blood cell disorders, without major complications (hospital stay) | 812 |  |  | [map](hospital_812.html) |
| Hospital stays (inpatient) | Back problems treated without surgery, without major complications (hospital stay) | 552 | $16,183 | 1 | [map](hospital_552.html) |
| Hospital stays (inpatient) | Bleeding in the digestive tract, with complications (hospital stay) | 378 | $18,579 | 1 | [map](hospital_378.html) |
| Hospital stays (inpatient) | Bleeding in the digestive tract, with major complications (hospital stay) | 377 |  |  | [map](hospital_377.html) |
| Hospital stays (inpatient) | Bowel obstruction, with complications (hospital stay) | 389 | $9,667 | 1 | [map](hospital_389.html) |
| Hospital stays (inpatient) | Breathing condition needing a ventilator, up to 4 days (hospital stay) | 208 |  |  | [map](hospital_208.html) |
| Hospital stays (inpatient) | Bronchitis or asthma, with complications or major complications (hospital stay) | 202 | $9,920 | 1 | [map](hospital_202.html) |
| Hospital stays (inpatient) | C-section delivery, no complications (hospital stay) | 788 | $13,676 | 1 | [map](hospital_788.html) |
| Hospital stays (inpatient) | C-section delivery, with complications (hospital stay) | 787 | $16,789 | 1 | [map](hospital_787.html) |
| Hospital stays (inpatient) | COPD flare-up, with major complications (hospital stay) | 190 | $10,292 | 1 | [map](hospital_190.html) |
| Hospital stays (inpatient) | Catheter-based heart procedure, such as ablation, without major complications (hospital stay) | 274 |  |  | [map](hospital_274.html) |
| Hospital stays (inpatient) | Dehydration, electrolyte or nutrition problems, with major complications (hospital stay) | 640 | $42,192 | 1 | [map](hospital_640.html) |
| Hospital stays (inpatient) | Dehydration, electrolyte or nutrition problems, without major complications (hospital stay) | 641 | $8,114 | 1 | [map](hospital_641.html) |
| Hospital stays (inpatient) | Diabetes, with complications (hospital stay) | 638 | $9,959 | 1 | [map](hospital_638.html) |
| Hospital stays (inpatient) | Diabetes, with major complications (hospital stay) | 637 | $13,018 | 1 | [map](hospital_637.html) |
| Hospital stays (inpatient) | Drug poisoning or overdose, with major complications (hospital stay) | 917 | $144,415 | 1 | [map](hospital_917.html) |
| Hospital stays (inpatient) | Fainting (hospital stay) | 312 | $7,686 | 1 | [map](hospital_312.html) |
| Hospital stays (inpatient) | Full-term newborn with major problems (hospital stay) | 793 |  |  | [map](hospital_793.html) |
| Hospital stays (inpatient) | Healthy newborn (hospital stay) | 795 |  |  | [map](hospital_795.html) |
| Hospital stays (inpatient) | Heart attack, with complications (hospital stay) | 281 | $6,155 | 1 | [map](hospital_281.html) |
| Hospital stays (inpatient) | Heart attack, with major complications (hospital stay) | 280 |  |  | [map](hospital_280.html) |
| Hospital stays (inpatient) | Heart catheterization, not for a heart attack, with major complications (hospital stay) | 286 |  |  | [map](hospital_286.html) |
| Hospital stays (inpatient) | Heart catheterization, not for a heart attack, without major complications (hospital stay) | 287 |  |  | [map](hospital_287.html) |
| Hospital stays (inpatient) | Heart failure, with major complications (hospital stay) | 291 | $8,486 | 1 | [map](hospital_291.html) |
| Hospital stays (inpatient) | Heart stent or similar artery procedure, with major complications or 4+ arteries or stents (hospital stay) | 321 |  |  | [map](hospital_321.html) |
| Hospital stays (inpatient) | Heart stent or similar artery procedure, without major complications (hospital stay) | 322 |  |  | [map](hospital_322.html) |
| Hospital stays (inpatient) | Heart stent, drug-coated, without major complications (hospital stay) | 247 |  |  | [map](hospital_247.html) |
| Hospital stays (inpatient) | Heart valve replacement through a catheter (TAVR), without major complications (hospital stay) | 267 |  |  | [map](hospital_267.html) |
| Hospital stays (inpatient) | Heart valve surgery with catheterization (hospital stay) | 216 |  |  | [map](hospital_216.html) |
| Hospital stays (inpatient) | Hip fracture repair or other hip and thigh-bone surgery, with complications (hospital stay) | 481 | $27,019 | 1 | [map](hospital_481.html) |
| Hospital stays (inpatient) | Hip or knee replacement, without major complications (hospital stay) | 470 | $63,780 | 1 | [map](hospital_470.html) |
| Hospital stays (inpatient) | Hip replacement for a broken hip, without major complications (hospital stay) | 522 |  |  | [map](hospital_522.html) |
| Hospital stays (inpatient) | Irregular heartbeat, no complications (hospital stay) | 310 | $10,058 | 1 | [map](hospital_310.html) |
| Hospital stays (inpatient) | Irregular heartbeat, with complications (hospital stay) | 309 | $9,780 | 1 | [map](hospital_309.html) |
| Hospital stays (inpatient) | Irregular heartbeat, with major complications (hospital stay) | 308 |  |  | [map](hospital_308.html) |
| Hospital stays (inpatient) | Kidney failure, with complications (hospital stay) | 683 | $7,704 | 1 | [map](hospital_683.html) |
| Hospital stays (inpatient) | Kidney failure, with major complications (hospital stay) | 682 | $10,830 | 1 | [map](hospital_682.html) |
| Hospital stays (inpatient) | Kidney or urinary tract infection, with major complications (hospital stay) | 689 | $9,873 | 1 | [map](hospital_689.html) |
| Hospital stays (inpatient) | Kidney or urinary tract infection, without major complications (hospital stay) | 690 | $10,668 | 1 | [map](hospital_690.html) |
| Hospital stays (inpatient) | Major bowel surgery, with complications (hospital stay) | 330 | $51,285 | 1 | [map](hospital_330.html) |
| Hospital stays (inpatient) | Major bowel surgery, with major complications (hospital stay) | 329 | $67,426 | 1 | [map](hospital_329.html) |
| Hospital stays (inpatient) | Neck spinal fusion (hospital stay) | 473 |  |  | [map](hospital_473.html) |
| Hospital stays (inpatient) | Newborn with other significant problems (hospital stay) | 794 |  |  | [map](hospital_794.html) |
| Hospital stays (inpatient) | Other digestive conditions, with complications (hospital stay) | 394 |  |  | [map](hospital_394.html) |
| Hospital stays (inpatient) | Other heart and circulation conditions, with major complications (hospital stay) | 314 | $7,503 | 1 | [map](hospital_314.html) |
| Hospital stays (inpatient) | Other kidney and urinary conditions, with complications (hospital stay) | 699 |  |  | [map](hospital_699.html) |
| Hospital stays (inpatient) | Other kidney and urinary conditions, with major complications (hospital stay) | 698 |  |  | [map](hospital_698.html) |
| Hospital stays (inpatient) | Pneumonia, with complications (hospital stay) | 194 | $16,049 | 1 | [map](hospital_194.html) |
| Hospital stays (inpatient) | Pneumonia, with major complications (hospital stay) | 193 | $11,118 | 1 | [map](hospital_193.html) |
| Hospital stays (inpatient) | Premature newborn without major problems (hospital stay) | 792 |  |  | [map](hospital_792.html) |
| Hospital stays (inpatient) | Respiratory failure or fluid in the lungs (hospital stay) | 189 | $12,266 | 1 | [map](hospital_189.html) |
| Hospital stays (inpatient) | Seizures, without major complications (hospital stay) | 101 | $12,466 | 1 | [map](hospital_101.html) |
| Hospital stays (inpatient) | Sepsis, with major complications (hospital stay) | 871 | $25,600 | 1 | [map](hospital_871.html) |
| Hospital stays (inpatient) | Sepsis, without major complications (hospital stay) | 872 | $5,818 | 1 | [map](hospital_872.html) |
| Hospital stays (inpatient) | Serious lung infection, with complications (hospital stay) | 178 |  |  | [map](hospital_178.html) |
| Hospital stays (inpatient) | Serious lung infection, with major complications (hospital stay) | 177 | $7,282 | 1 | [map](hospital_177.html) |
| Hospital stays (inpatient) | Serious mental illness (psychoses) (hospital stay) | 885 | $13,823 | 1 | [map](hospital_885.html) |
| Hospital stays (inpatient) | Skin infection (cellulitis), without major complications (hospital stay) | 603 | $9,807 | 1 | [map](hospital_603.html) |
| Hospital stays (inpatient) | Spinal fusion, lower or middle back, more than one level, without major complications (hospital stay) | 448 |  |  | [map](hospital_448.html) |
| Hospital stays (inpatient) | Spinal fusion, lower or middle back, one level, without major complications (hospital stay) | 451 |  |  | [map](hospital_451.html) |
| Hospital stays (inpatient) | Spinal fusion, lower or middle back, without major complications (hospital stay) | 460 |  |  | [map](hospital_460.html) |
| Hospital stays (inpatient) | Stomach flu, gastritis and similar, with major complications (hospital stay) | 391 | $29,746 | 1 | [map](hospital_391.html) |
| Hospital stays (inpatient) | Stomach flu, gastritis and similar, without major complications (hospital stay) | 392 | $9,521 | 1 | [map](hospital_392.html) |
| Hospital stays (inpatient) | Stroke, with complications, or clot-busting drug given (hospital stay) | 65 | $11,181 | 1 | [map](hospital_65.html) |
| Hospital stays (inpatient) | Stroke, with major complications (hospital stay) | 64 |  |  | [map](hospital_64.html) |
| Hospital stays (inpatient) | Surgery for a serious infection such as sepsis, with major complications (hospital stay) | 853 | $174,503 | 1 | [map](hospital_853.html) |
| Hospital stays (inpatient) | Uterus or ovary surgery, non-cancer (hospital stay) | 743 |  |  | [map](hospital_743.html) |
| Hospital stays (inpatient) | Vaginal delivery, no complications (hospital stay) | 807 | $11,552 | 1 | [map](hospital_807.html) |
| Hospital stays (inpatient) | Vaginal delivery, with complications (hospital stay) | 806 | $8,500 | 1 | [map](hospital_806.html) |
| Hospital stays (inpatient) | Weight-loss surgery, no complications (hospital stay) | 621 |  |  | [map](hospital_621.html) |
| Imaging & scans | Abdominal ultrasound (complete) | 76700 | $391 to $1,138 | 10 | [map](hospital_76700.html) |
| Imaging & scans | CT scan of abdomen and pelvis (with dye) | 74177 | $181 to $415 | 10 | [map](hospital_74177.html) |
| Imaging & scans | CT scan of the head (no dye) | 70450 | $61 to $141 | 10 | [map](hospital_70450.html) |
| Imaging & scans | CT scan of the pelvis (with dye) | 72193 | $137 to $315 | 10 | [map](hospital_72193.html) |
| Imaging & scans | Chest X-ray (single view) | 71045 | $65 to $407 | 11 | [map](hospital_71045.html) |
| Imaging & scans | Chest X-ray (two views) | 71046 | $85 to $313 | 11 | [map](hospital_71046.html) |
| Imaging & scans | Lower back X-ray (4+ views) | 72110 | $153 to $715 | 11 | [map](hospital_72110.html) |
| Imaging & scans | MRI of a leg joint (no dye) | 73721 | $270 to $1,639 | 10 | [map](hospital_73721.html) |
| Imaging & scans | MRI of the brain (no dye) | 70551 | $252 to $1,534 | 10 | [map](hospital_70551.html) |
| Imaging & scans | MRI of the brain (with and without dye) | 70553 | $424 to $2,581 | 10 | [map](hospital_70553.html) |
| Imaging & scans | MRI of the lower back (no dye) | 72148 | $241 to $1,465 | 10 | [map](hospital_72148.html) |
| Labs & bloodwork | Basic metabolic panel (BMP) | 80048 | $19 to $36 | 10 | [map](hospital_80048.html) |
| Labs & bloodwork | Basic urine test (automated) | 81003 | $5 to $13 | 10 | [map](hospital_81003.html) |
| Labs & bloodwork | Basic urine test (manual) | 81002 | $8 | 1 | [map](hospital_81002.html) |
| Labs & bloodwork | Blood clotting test (PTT) | 85730 | $13 to $27 | 10 | [map](hospital_85730.html) |
| Labs & bloodwork | Blood clotting time test (PT/INR) | 85610 | $10 to $27 | 10 | [map](hospital_85610.html) |
| Labs & bloodwork | Blood draw | 36415 | $14 to $88 | 11 | [map](hospital_36415.html) |
| Labs & bloodwork | Cholesterol test (lipid panel) | 80061 | $36 to $63 | 10 | [map](hospital_80061.html) |
| Labs & bloodwork | Complete blood count (CBC, basic) | 85027 | $14 to $27 | 10 | [map](hospital_85027.html) |
| Labs & bloodwork | Complete blood count with differential (CBC) | 85025 | $17 to $33 | 10 | [map](hospital_85025.html) |
| Labs & bloodwork | Comprehensive metabolic panel (CMP) | 80053 | $23 to $50 | 10 | [map](hospital_80053.html) |
| Labs & bloodwork | Hemoglobin A1c (3-month blood sugar) | 83036 | $30 to $66 | 10 | [map](hospital_83036.html) |
| Labs & bloodwork | Kidney function panel | 80069 | $23 to $40 | 10 | [map](hospital_80069.html) |
| Labs & bloodwork | Liver function panel | 80076 | $21 to $36 | 10 | [map](hospital_80076.html) |
| Labs & bloodwork | PSA prostate blood test (free) | 84154 | $48 to $83 | 10 | [map](hospital_84154.html) |
| Labs & bloodwork | PSA prostate blood test (total) | 84153 | $41 to $66 | 10 | [map](hospital_84153.html) |
| Labs & bloodwork | Thyroid blood test (TSH) | 84443 | $31 to $50 | 10 | [map](hospital_84443.html) |
| Labs & bloodwork | Troponin blood test | 84484 | $72 | 1 | [map](hospital_84484.html) |
| Labs & bloodwork | Urine test with microscope (automated) | 81001 | $7 to $30 | 10 | [map](hospital_81001.html) |
| Labs & bloodwork | Urine test with microscope (manual) | 81000 | $30 | 1 | [map](hospital_81000.html) |
| Mental health | Family or couples therapy (patient present) | 90847 | $89 to $550 | 6 | [map](hospital_90847.html) |
| Mental health | Family therapy (without the patient present) | 90846 | $89 to $550 | 6 | [map](hospital_90846.html) |
| Mental health | Group therapy session | 90853 | $59 to $181 | 6 | [map](hospital_90853.html) |
| Mental health | Therapy session (30 minutes) | 90832 | $148 to $408 | 6 | [map](hospital_90832.html) |
| Mental health | Therapy session (45 minutes) | 90834 | $178 to $489 | 6 | [map](hospital_90834.html) |
| Mental health | Therapy session (60 minutes) | 90837 | $267 to $580 | 5 | [map](hospital_90837.html) |
| Office visits | Office visit, existing patient (complex) | 99215 | $178 to $490 | 8 | [map](hospital_99215.html) |
| Office visits | Office visit, existing patient (extended) | 99214 | $148 to $408 | 8 | [map](hospital_99214.html) |
| Office visits | Office visit, existing patient (short) | 99212 | $89 to $245 | 8 | [map](hospital_99212.html) |
| Office visits | Office visit, existing patient (standard) | 99213 | $119 to $326 | 8 | [map](hospital_99213.html) |
| Office visits | Office visit, new patient (complex) | 99205 | $178 to $529 | 8 | [map](hospital_99205.html) |
| Office visits | Office visit, new patient (extended) | 99204 | $148 to $408 | 8 | [map](hospital_99204.html) |
| Office visits | Office visit, new patient (short) | 99202 | $89 to $245 | 8 | [map](hospital_99202.html) |
| Office visits | Office visit, new patient (standard) | 99203 | $119 to $326 | 8 | [map](hospital_99203.html) |
| Office visits | Quick office visit, existing patient | 99211 | $59 to $163 | 8 | [map](hospital_99211.html) |
| Office visits | Specialist consultation (extended) | 99244 | $442 | 1 | [map](hospital_99244.html) |
| Office visits | Specialist consultation (standard) | 99243 | $303 | 1 | [map](hospital_99243.html) |
| Preventive & wellness | Annual checkup, existing patient (age 18-39) | 99395 | $258 | 1 | [map](hospital_99395.html) |
| Preventive & wellness | Annual checkup, existing patient (age 40-64) | 99396 | $258 | 1 | [map](hospital_99396.html) |
| Preventive & wellness | Annual checkup, new patient (age 18-39) | 99385 | $258 | 1 | [map](hospital_99385.html) |
| Preventive & wellness | Annual checkup, new patient (age 40-64) | 99386 | $258 | 1 | [map](hospital_99386.html) |
| Sleep | Overnight sleep study (in a lab) | 95810 | $684 to $4,492 | 9 | [map](hospital_95810.html) |
| Spine & pain injections | Epidural steroid injection, lower back (no imaging) | 62322 |  |  | [map](hospital_62322.html) |
| Spine & pain injections | Epidural steroid injection, lower back (with imaging) | 62323 |  |  | [map](hospital_62323.html) |
| Spine & pain injections | Nerve root steroid injection, lower back | 64483 |  |  | [map](hospital_64483.html) |
| Surgery & procedures | Breast lump removal (open surgery) | 19120 |  |  | [map](hospital_19120.html) |
| Surgery & procedures | Chemotherapy infusion, first hour | 96413 | $534 to $1,468 | 8 | [map](hospital_96413.html) |
| Surgery & procedures | Gallbladder removal (laparoscopic) | 47562 |  |  | [map](hospital_47562.html) |
| Surgery & procedures | Groin hernia repair (age 5+) | 49505 |  |  | [map](hospital_49505.html) |
| Surgery & procedures | IV infusion, first hour | 96365 | $359 to $1,468 | 11 | [map](hospital_96365.html) |
| Surgery & procedures | Knee arthroscopy - torn cartilage trim | 29881 |  |  | [map](hospital_29881.html) |
| Surgery & procedures | Prostate biopsy | 55700 |  |  | [map](hospital_55700.html) |
| Surgery & procedures | Prostate removal for cancer (laparoscopic) | 55866 |  |  | [map](hospital_55866.html) |
| Surgery & procedures | Shoulder arthroscopy for impingement | 29826 |  |  | [map](hospital_29826.html) |
| Surgery & procedures | Tonsil and adenoid removal (under 12) | 42820 |  |  | [map](hospital_42820.html) |
| Therapy & rehab | Physical therapy - balance and coordination (15 min) | 97112 | $79 to $193 | 11 | [map](hospital_97112.html) |
| Therapy & rehab | Physical therapy - functional activities (15 min) | 97530 | $110 to $271 | 11 | [map](hospital_97530.html) |
| Therapy & rehab | Physical therapy - hands-on manual therapy (15 min) | 97140 | $73 to $138 | 11 | [map](hospital_97140.html) |
| Therapy & rehab | Physical therapy - therapeutic exercise (15 min) | 97110 | $63 to $155 | 11 | [map](hospital_97110.html) |
| Women's health & maternity | C-section - full maternity care | 59510 |  |  | [map](hospital_59510.html) |
| Women's health & maternity | Pregnancy blood test panel | 80055 | $113 to $259 | 8 | [map](hospital_80055.html) |
| Women's health & maternity | Pregnancy ultrasound (after 14 weeks) | 76805 | $442 to $1,286 | 10 | [map](hospital_76805.html) |
| Women's health & maternity | Transvaginal pelvic ultrasound | 76830 | $425 to $1,237 | 10 | [map](hospital_76830.html) |
| Women's health & maternity | Vaginal birth after cesarean - full maternity care | 59610 |  |  | [map](hospital_59610.html) |
| Women's health & maternity | Vaginal childbirth - full maternity care | 59400 |  |  | [map](hospital_59400.html) |

## What this data is

Since 2021, the [Hospital Price Transparency](https://www.cms.gov/priorities/key-initiatives/hospital-price-transparency) rule (45 CFR 180) has required every hospital to publish a machine-readable file of its **standard charges**: the gross charge (its list price), the discounted cash price for someone paying without insurance, and the rate it has negotiated with each insurer and plan — for every item and service it provides. Since January 2026 the files follow one CMS template.

Each hospital publishes its own file, in its own layout: some are tidy, some are several gigabytes, some sit behind bot protection. These maps are built directly from those files; every number was published by the hospital.

## How this was built

The hospitals are every general acute, critical access and children's hospital in Maryland on Medicare's hospital list (psychiatric, VA and military hospitals excluded). Each one's file was found automatically: through the index CMS requires at every hospital website's root, or a link on the hospital's price page. **29 files** (3.7 GB) were downloaded, most recently on 2026-10-29. Their prices for 170 common procedures were extracted, the names of 71 insurers and networks, which hospitals spell in hundreds of ways were matched up (plus 1,325 smaller plans, administrators and employer arrangements, kept under their own names), and each rate was sorted into commercial, Medicare Advantage, Medicaid or Marketplace plans: 266,855 usable dollar prices in all.

## What the prices mean

The map shows, by default, the **typical commercial price**: the median of the rates each commercial insurer has negotiated with that hospital. Medicare Advantage and Medicaid plans pay far less and are shown separately — a single median across all of them would describe nobody. You can also pick the cash price, the list price, or one insurer.

**None of these is your bill.** What you pay depends on your deductible, copay and coinsurance; a procedure usually carries more than one charge; and the doctor's fee is often billed separately from the hospital's facility fee (the maps show them separately where hospitals do).

## Emergency care outside your plan's network

**An insurer's price here applies only when the hospital is in your plan's network.** If you go to the emergency room of a hospital that is not — which is common with marketplace (ACA) and other narrow-network plans, and when you are away from home — the federal [No Surprises Act](https://www.cms.gov/nosurprises) applies instead (in force since January 2022). The hospital may not bill you more than you would owe in network, and your insurer works out that amount from a benchmark of its own, not from the price on these maps. The same goes for the tests, scans and treatment given during the visit, and for the hospital stay that follows until you are stable enough to be moved.

**The benchmark is usually the qualifying payment amount (QPA).** It is the middle (median) rate the insurer had under contract for that service on 31 January 2019, among its plans in the same insurance market (individual, small group or large group; a self-funded employer's plans are counted on their own) and the same region, raised each year for inflation. On your explanation of benefits it appears as the “allowed amount”, usually beside a remark that the claim was paid at the in-network level. In some states a state law sets the amount instead, and in Maryland the state's hospital rates do.

**This site cannot show the QPA or work it out.** It comes from 2019 contracts, not this year's; it is a median across many hospitals, not this hospital's rate; it differs by kind of plan and by region; and no one is required to publish it — it is in neither the hospital files nor the insurer files this site is built from. The insurer tells the hospital the QPA when it pays, and that is all. So the allowed amount on your statement can be far below, or above, the price shown here for the same hospital, insurer and procedure. If the hospital thinks the payment too low it can take the insurer to federal arbitration; that does not change what you owe.

The rules, from the sources:

- [Your rights against surprise medical bills](https://www.cms.gov/initiatives/your-patient-rights/medical-bill-rights) (CMS, for patients)
- [The No Surprises Act](https://www.cms.gov/nosurprises) and [an overview of its rules](https://www.cms.gov/initiatives/no-surprise-billing/overview/policies-resources/overview-rules-fact-sheets) (CMS)
- [42 U.S.C. 300gg-111](https://www.law.cornell.edu/uscode/text/42/300gg-111): the law itself, on emergency services and what the patient pays
- [45 CFR 149.110](https://www.ecfr.gov/current/title-45/subtitle-A/subchapter-B/part-149/subpart-B/section-149.110): which emergency services are covered
- [45 CFR 149.140](https://www.ecfr.gov/current/title-45/subtitle-A/subchapter-B/part-149/subpart-B/section-149.140): how the qualifying payment amount is calculated
- [Independent dispute resolution](https://www.cms.gov/initiatives/no-surprise-billing/overview/engaging-idr/about-independent-dispute-resolution): the arbitration between hospital and insurer (CMS)

## What is not here

**16 of the 45 hospitals have no usable prices here.** They are still on the maps, as grey rings; clicking one says why. The reasons:

- The hospital's website blocks automated access (HTTP 403), so its price file could not be fetched. 9 hospitals: Adventist Healthcare Fort Washington Medical Ctr, Adventist Healthcare Shady Grove Medical Center, Adventist Healthcare White Oak Medical Center, Johns Hopkins Bayview Medical Center, Johns Hopkins Hospital, Johns Hopkins Howard County Medical Center, Levindale Hebrew Geriatric Center and Hospital, Sinai Hospital of Baltimore, Suburban Hospital
- No website for this hospital was found in the public directories searched. 3 hospitals: Umd Upper Chesapeake Medical Center, University of MD Capital Region Medical Center, University of Maryland Medical Center
- The hospital's website has no CMS price index (cms-hpt.txt) and no link to a price file was found on it. 1 hospital: Carroll Hospital Center
- Only a price file for a different hospital (in another state) was found. 1 hospital: Northwest Hospital Center
- The hospital's price file does not list any of these procedures by their standard codes (CPT, HCPCS or DRG). 1 hospital: Saint Agnes Hospital
- The hospital's price index (cms-hpt.txt) does not list this hospital. 1 hospital: University of MD Baltimore Washington Medical Center

Some hospitals state part of their insurer pricing only as a percentage of charges or a formula, with no dollar figure; those rates are counted but cannot be shown. Transplant, behavioral-health, international and employee plans are kept out of the typical prices. Rates of $0 or $1 (placeholders) and prices more than 20 times away from the procedure's usual price are left out.

## Check it yourself

Every hospital's price files are public. The files used here, dated 2025-03-17 to 2026-09-17:

The 29 hospitals and their files

- Atlantic General Hospital (Berlin) — [price page](https://www.tidalhealth.org/patients-visitors/billing-insurance-medical-records/billing?tab=4), [file](https://www.tidalhealth.org/sites/default/files/2026-05/521656507_atlantic-general-hospital_standardcharges.csv) dated 2026-04-10
- Calverthealth Medical Center (Prince Frederick) — [price page](https://www.calverthealthmedicine.org/Charge-Master-Dictionary-Price-Transparency), [file](https://www.calverthealthmedicine.org/price-transparency-file) dated 2026-09-17
- Frederick Health Hospital (Frederick) — [price page](https://www.frederickhealth.org/about/billing-financial-assistance/), [file](https://www.frederickhealth.org/documents/billing%20and%20finance/52-0591612_FrederickHealthHospital_standardcharges.csv) dated 2025-03-17
- Garrett Regional Medical Center (Oakland) — [price page](https://wvumedicine.org/billing-and-insurance/costs-and-charges/), [file](https://wvumedicine.org/wp-content/uploads/2026/03/871846814_grmcinc_standardcharges.csv) dated 2026-03-31
- Greater Baltimore Medical Center (Baltimore) — [price page](https://www.gbmc.org/billing-estimates/billing-and-financial-support/hospital-and-physician-charges), [file](https://www.gbmc.org/sites/default/files/documents/52-6049658_gbmc_standardcharges.csv) dated 2026-07-01
- Holy Cross Germantown Hospital (Germantown) — [price page](https://www.holycrosshealth.org/for-patients/billing-financial-assistance-and-insurance/charge-estimates), [file](https://hpt.trinity-health.org/520738041-1245655638_holy-cross-germantown-hospital_standardcharges.zip) dated 2026-03-31
- Holy Cross Hospital (Silver Spring) — [price page](https://www.holycrosshealth.org/for-patients/billing-financial-assistance-and-insurance/charge-estimates), [file](https://hpt.trinity-health.org/520738041-1669417838_holy-cross-hospital-silver-spring_standardcharges.zip) dated 2026-03-31
- Kennedy Krieger Institute (Baltimore) — [price page](https://www.kennedykrieger.org/patient-care/preparing-for-your-appointment-admission/make-an-appointment/hospital-charges), [file](https://www.kennedykrieger.org/sites/default/files/library/documents/about-us/Financial%20Docs/520607971-1619075926_kennedy-krieger-institute_standardcharges.csv.csv) dated 2026-08-27
- Luminis Health Anne Arundel Medical Center (Annapolis) — [price page](https://www.luminishealth.org/en/price-transparency), [file](https://www.luminishealth.org/sites/default/files/2026-01/1477517225_annearundelmedicalcenter_standardcharges.csv) dated 2026-01-15
- Luminis Health Doctors Community Medical Ctr (Lanham) — [price page](https://www.luminishealth.org/en/price-transparency), [file](https://www.luminishealth.org/sites/default/files/2026-01/1730136532_doctorscommunitymedicalcenter_standardcharges.csv) dated 2026-01-15
- Medstar Franklin Square Medical Center (Rosedale) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/520608007_medstar_franklin_square_medical_center_standardcharges.csv) dated 2026-04-01
- Medstar Good Samaritan Hospital (Baltimore) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/520591607_medstar_good_samaritan_standardcharges.csv) dated 2026-04-01
- Medstar Harbor Hospital (Baltimore) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/520491660_medstar_harbor_hospital_standardcharges.csv) dated 2026-04-01
- Medstar Montgomery Medical Center (Olney) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/520646893_medstar_montgomery_medical_center_standardcharges.csv) dated 2026-04-01
- Medstar Saint Mary's Hospital (Leonardtown) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/520619006_medstar_st_marys_hospital_standardcharges.csv) dated 2026-04-01
- Medstar Southern Maryland Hospital Center (Clinton) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/460726303_medstar_southern_maryland_hospital_center_standardcharges.csv) dated 2026-04-01
- Medstar Union Memorial Hospital (Baltimore) — [price page](https://www.medstarhealth.org/price-transparency-disclosures), [file](https://www.medstarhealth.org/-/media/project/mho/medstar/billing-and-insurance/2026/520591685_medstar_union_memorial_hospital_standardcharges.csv) dated 2026-04-01
- Mercy Medical Center (Baltimore) — [price page](https://mdmercy.com/patients-and-visitors/billing-and-insurance/hospital-charge-and-facility-fee-information), [file](https://mdmercy.com/-/media/files/about-mercy/policies-and-documents/520591658_mercymedicalcenter_standardcharges.ashx) dated 2026-01-01
- Meritus Medical Center (Hagerstown) — [price page](https://www.meritushealth.com/about/patients-visitors/cms-price-transparency), [file](https://www.meritushealth.com/price-transparency/52-0607949-MeritusMedicalCenter-standardcharges-06102026.csv) dated 2026-06-10
- Mount Washington Pediatric Hospital (Baltimore) — [price page](https://www.mwph.org/patients-and-guests/financial/price-transparency), [file](https://www.mwph.org/standard-charges/520591483_Mt.-Washington-Pediatric-Hospital_standardcharges.csv) dated 2025-11-05
- Tidalhealth Peninsula Regional (Salisbury) — [price page](https://www.tidalhealth.org/patients-visitors/billing-insurance-medical-records/billing?tab=4), [file](https://www.tidalhealth.org/sites/default/files/2026-03/520591628_tidalhealth-peninsula-regional-inc_standardcharges.csv) dated 2026-03-19
- Umd Rehabilitation & Orthopaedic Institute (Baltimore) — [file](https://www.umms.org/standard-charges/520591639_UM-Rehabilitation-and-Orthopaedic-Institute_standardcharges.csv) dated 2026-06-08
- Union Hospital of Cecil County (Elkton) — [price page](https://www.uhcc.com/about-us/patient-financial-services/), [file](https://www.uhcc.com/520607945_union-hospital-of-cecil-county_standardcharges.csv) dated 2026-04-01
- University of MD Charles Regional Medical Center (La Plata) — [file](https://www.umms.org/standard-charges/520445374_UM-Charles-Regional-Medical-Center_standardcharges.csv) dated 2026-06-08
- University of MD Medical Center Midtown Campus (Baltimore) — [file](https://www.umms.org/standard-charges/520591667_UMMC-Midtown-Campus_standardcharges.csv) dated 2026-06-08
- University of MD Shore Medical Center at Easton (Easton) — [file](https://www.umms.org/standard-charges/520610538_UM-Shore-Medical-Center-at-Easton_standardcharges.csv) dated 2026-06-08
- University of MD Shore Medical Ctr at Chestertown (Chestertown) — [file](https://www.umms.org/standard-charges/520679694_UM-Shore-Medical-Center-at-Chestertown_standardcharges.csv) dated 2026-06-08
- University of MD St. Joseph Medical Center (Towson) — [file](https://www.umms.org/standard-charges/352445106_UM-St.-Joseph-Medical-Center_standardcharges.csv) dated 2026-06-08
- Western Maryland Regional Medical Center (Cumberland) — [price page](https://www.upmc.com/locations/hospitals/western-maryland/patients-visitors/patients/price-transparency/machine-readable-file), [file](https://dam.upmc.com/-/media/upmc/locations/hospitals/western-maryland/patients-visitors/520591531_upmcwesternmaryland_standardcharges.csv?) dated 2026-03-02

- [CMS: Hospital Price Transparency](https://www.cms.gov/priorities/key-initiatives/hospital-price-transparency) — the rule and what hospitals must publish
- [CMS's file template and data dictionary](https://github.com/CMSgov/hospital-price-transparency)