Prothrombin time (PT/INR) clotting test in San Jose-Sunnyvale-Santa Clara, CA — inpatient
In San Jose-Sunnyvale-Santa Clara, CA, 4 hospitals list a cash price for Prothrombin time (PT/INR) clotting test as an inpatient: from $4.72 to $164.00, with a median of $89.60. The lowest listed price is at El Camino Hospital.
Cash prices at 4 facilities across 4 cities for code 85610, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 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 San Jose-Sunnyvale-Santa Clara, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| El Camino Hospital lowest Mountain View, CA HC PT INHIBITOR SCREEN, PROTHROMBIN TIME *5 1/3 | $4.72 | $18.90 | 75% | Apr 1, 2026 source file |
| El Camino Hospital Mountain View, CA HC PRO TIME | $36.75 | $147.00 | 75% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Santa Clara Santa Clara, CA PROTHROMBIN TIME | $89.60 | $160.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Jose San Jose, CA PROTHROMBIN TIME | $89.60 | $160.00 | 44% | — source file |
| Stanford Health Care Stanford, CA HC Protime | $164.00 | $410.00 | 60% | Apr 1, 2026 source file |
| Stanford Health Care Stanford, CA Labaclpt Prothrombin Time | $164.00 | $410.00 | 60% | Apr 1, 2026 source file |
| Stanford Health Care Stanford, CA HC Prothrombin Time | $164.00 | $410.00 | 60% | Apr 1, 2026 source file |
Inpatient: lowest $4.72, median $89.60, highest $164.00 — a 34.7× difference within the same market.
As an outpatient, the same code is billed by 5 facilities here, median $164.00 — 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.