Prothrombin time (PT/INR) clotting test in Baltimore-Columbia-Towson, MD — inpatient
In Baltimore-Columbia-Towson, MD, 3 hospitals list a cash price for Prothrombin time (PT/INR) clotting test as an inpatient: from $9.51 to $29.56, with a median of $25.66. The lowest listed price is at Greater Baltimore Medical Center.
Cash prices at 3 facilities across 2 cities for code 85610, as an inpatient (admitted to hospital) . Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Baltimore-Columbia-Towson, MD.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Greater Baltimore Medical Center lowest Towson, MD HC Prothombin Time | $9.51 | $9.70 | 2% | — source file |
| Greater Baltimore Medical Center Towson, MD Prothrombin Time | $10.00 | $10.00 | — | — source file |
| Mercy Medical Center, Inc. Baltimore, MD HC PROTHROMBIN TIME | $25.66 | $26.18 | 2% | — source file |
| Mercy Medical Center, Inc. Baltimore, MD HC PROTHROMBIN TIME REF | $25.66 | $26.18 | 2% | — source file |
| Mercy Medical Center, Inc. Baltimore, MD HC PROTHROMBIN TIME AC | $25.66 | $26.18 | 2% | — source file |
| Mt. Washington Pediatric Hospital Baltimore, MD PROTHROMBIN TIME | $29.56 | $30.16 | 2% | — source file |
Inpatient: lowest $9.51, median $25.66, highest $29.56 — a 3.1× difference within the same market.
As an outpatient, the same code is billed by 3 facilities here, median $25.66 — 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.