Prothrombin time (PT/INR) clotting test in Madison, WI — inpatient
In Madison, WI, 2 hospitals list a cash price for Prothrombin time (PT/INR) clotting test as an inpatient: from $45.60 to $61.24, with a median of $46.15. The lowest listed price is at Meriter Hospital, Inc.
Cash prices at 2 facilities across 2 cities for code 85610, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 28, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Madison, WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Meriter Hospital, Inc lowest Madison, WI CHG PROTHROMBIN TIME | $45.60 | $57.00 | 20% | Jan 28, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI Fac Prothrombin Tm | $46.15 | $71.00 | 35% | Apr 1, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI Prothrombin Time Beaker1 | $46.15 | $71.00 | 35% | Apr 1, 2026 source file |
| Aspirus Divine Savior Hospital Portage, WI PROTHROMBIN TIME | $46.15 | $71.00 | 35% | Apr 1, 2026 source file |
| Meriter Hospital, Inc Madison, WI HC PROTHROMBIN TIME | $61.24 | $76.54 | 20% | Jan 28, 2026 source file |
Inpatient: lowest $45.60, median $46.15, highest $61.24 — a 1.3× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $46.15 — that is the price to compare if you are not being admitted.
What it is
The prothrombin time (PT) test measures how long it takes blood to clot, and is reported with the INR, a standardized number. It is used to monitor warfarin and to check clotting before surgery or with liver disease.
What the price covers
The price usually covers the PT and INR result. The blood draw is often a separate charge; a fingerstick home or clinic INR check may be billed differently.