Doctor’s fee or facility fee?This mixes two kinds of price: 89% are doctors' fees and 11% are facility fees paid to a hospital or surgery center. Facility fees are usually far higher, so a wide spread can be the two kinds side by side, not providers charging wildly different amounts. Either way, expect a doctor's fee and a facility fee as separate bills when this is done in a hospital or surgery center. Where a state has both, the table and each state’s popup show the doctor’s fee and the facility fee side by side; their sum is a rough total for the visit, before anything else done during it.
Who is counted: Mass General Brigham Health Plan mostly lists practices, not individual clinicians: 87% of the 5,559 provider IDs (NPIs) it names belong to a practice, clinic or hospital, which stands for everyone who works there. So “providers” here mostly counts practices — one entry can cover many doctors — and is not comparable with insurers that list each clinician. Mass General Brigham Health Plan’s files name 4,091 providers for this procedure; 1,328 are counted here: the clinicians whose specialty performs it — mostly Clinic/Center, Internal Medicine and Family Medicine — and the practices, clinics and hospitals. Insurers attach their whole fee schedule to every contracted provider, so the rest are clinicians listed at a price for something they never do; counting them would inflate the provider count and pull the typical price towards the fee schedule’s floor.
Not on this map: Mental health care: Mass General Brigham Health Plan rents Optum's national behavioral health network. Its prices are Optum's, set nationwide, so they are not included here. Care outside New England: for some plans it rents UnitedHealthcare's and MultiPlan's national networks. Those prices are not included here. Hospital stays: Mass General Brigham Health Plan's files have no prices for whole hospital stays (the kind billed as one amount per stay), so there are no hospital-stay maps for it. It may pay hospitals by the day or as a share of their charges, which these maps cannot show.
State
Providers
Named in files
Organisations
Zip codes
Lowest
25th pct
Median
75th pct
Highest
Doctor’s fee
Facility fee
vs Medicare
“x Medicare” compares each price with what original Medicare pays for the same lab test under its clinical laboratory fee schedule (26CLABQ4, in force from 2026-10-01): one national price, the same in every state. Insurers write their contracts as a share of Medicare, so 1.3x means the insurer pays 30% more than Medicare would; Medicare Advantage plans generally pay close to 1.0x.
This is a statewide summary. Prices vary far more between towns and between practices than these medians suggest; zip-code and provider-level detail is not published here; this specific data can be requested here.