Blood clotting test (PTT)

Another clotting-time blood test, often used before surgery or with heparin.
Code 85730 · Labs & bloodwork · statewide summary · negotiated in-network prices
Payers shown: AultCare
Prices shown: every in-person setting
Doctor’s fee or facility fee? This mixes two kinds of price: 88% are doctors' fees and 12% 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.
Who is counted: AultCare lists clinicians individually: 99% of the 8,635 provider IDs (NPIs) it names are individual doctors, nurse practitioners and therapists; the rest are practices, clinics and hospitals. “Providers” counts those IDs. AultCare’s files name 10 providers for this procedure; 9 are counted here: the clinicians whose specialty performs it 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: One of AultCare's four network files is missing: the index lists a fourth file (PTHP, covering 20 HMO-POS and retiree plans), but the link is refused and AultCare's page does not post it (October 2026). Plans that rent another network are not here: about half of AultCare's 2,246 plans list no AultCare file, and its page points them to rented networks (First Health, FrontPath, Ohio Health Choice, MedCost, Ohio PPO Connect, QCP). Hospital stays: AultCare'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.
StateProvidersNamed in filesOrganisationsZip codes Lowest25th pctMedian75th pctHighestvs 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.