PT/INR blood test cost in San Andreas, CA — inpatient
In San Andreas, CA, 1 hospital lists a cash price for prothrombin time (PT/INR) clotting test as an inpatient: from $4.45 to $4.45, with a median of $4.45. Across California, the median is $44.80 at 163 hospitals.
Cash prices at 1 facility for code 85610, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 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 Andreas, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mark Twain Medical Center lowest San Andreas, CA · (209) 754-3521 RL-A-LUPUS RFLX 3017009A | $4.45 | $6.67 | $3.62–$6.54 | 33% | Feb 28, 2026 source file |
| Mark Twain Medical Center San Andreas, CA · (209) 754-3521 RL-A-ANTI PHOS 3017157A | $6.53 | $9.80 | $5.31–$9.61 | 33% | Feb 28, 2026 source file |
| Mark Twain Medical Center San Andreas, CA · (209) 754-3521 PROTHROMBIN TIME | $83.25 | $125.00 | $67.67–$122.50 | 33% | Feb 28, 2026 source file |
Inpatient: lowest $4.45, median $4.45, highest $4.45.
As an outpatient, the same code is billed by 1 facility here, median $4.45 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
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.