Prothrombin time (PT/INR) clotting test in Riverside-San Bernardino-Ontario, CA
In Riverside-San Bernardino-Ontario, CA, 14 hospitals list a cash price for Prothrombin time (PT/INR) clotting test: from $4.00 to $297.75, with a median of $54.90. The lowest listed price is at Desert Valley Hospital.
Cash prices at 14 facilities across 13 cities for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 17, 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 Riverside-San Bernardino-Ontario, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Off list | File date |
|---|---|---|---|---|
| Desert Valley Hospital lowest Victorville, CA PT PROTHROMBIN TIME | $4.00 | $189.00 | 98% | Sep 1, 2026 source file |
| Montclair Hospital Medical Center Montclair, CA Hc Prothrombin Time | $4.00 | $181.98 | 98% | Sep 1, 2026 source file |
| Chino Valley Medical Center Chino, CA Hc Prothrombin Time | $4.00 | $181.98 | 98% | Sep 1, 2026 source file |
| Riverside University Medical Center Moreno Valley, CA HC POCT Inr | $9.66 | $9.66 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA HC POCT Prothrombin Time | $9.66 | $9.66 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA HC POCT Prothrombin Time | $9.66 | $9.66 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA HC POCT Inr | $9.66 | $9.66 | — | — source file |
| St Mary Medical Center Apple Valley, CA HC PROTHROMBIN TIME | $26.40 | $55.00 | 52% | Apr 1, 2026 source file |
| St Mary Medical Center Apple Valley, CA HC PROTHROMBIN TIME LAB | $33.44 | $69.67 | 52% | Apr 1, 2026 source file |
| Loma Linda University Behavioral Medicine Center Redlands, CA HC PROTHROMBIN TIME QUICK | $54.90 | $122.00 | 55% | Aug 31, 2026 source file |
| Loma Linda University Childrens Hospital Loma Linda, CA HC PROTHROMBIN TIME (POC) | $54.90 | $122.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Childrens Hospital Loma Linda, CA HC PROTHROMBIN TIME QUICK | $54.90 | $122.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center Loma Linda, CA HC PROTHROMBIN TIME QUICK | $54.90 | $122.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center - Murrieta Murrieta, CA HC PROTHROMBIN TIME (POC) | $54.90 | $122.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center - Murrieta Murrieta, CA HC PROTHROMBIN TIME QUICK | $54.90 | $122.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Medical Center Loma Linda, CA HC PROTHROMBIN TIME (POC) | $54.90 | $122.00 | 55% | Sep 2, 2026 source file |
| Loma Linda University Behavioral Medicine Center Redlands, CA HC PROTHROMBIN TIME (POC) | $54.90 | $122.00 | 55% | Aug 31, 2026 source file |
| Palo Verde Hospital Blythe, CA Vancomycin Level Peak | $81.00 | $108.00 | 25% | Jul 1, 2026 source file |
| Kaiser Foundation Hospital - Riverside Riverside, CA PROTHROMBIN TIME | $95.16 | $183.00 | 48% | — source file |
| Kaiser Foundation Hospital - Fontana Fontana, CA PROTHROMBIN TIME | $95.16 | $183.00 | 48% | — source file |
| Hospital of Barstow INC Barstow, CA Blood test, clotting time | $95.32 | $158.87 | 40% | Sep 17, 2026 source file |
| Palo Verde Hospital Blythe, CA Prothrombin Time and INR | $105.00 | $140.00 | 25% | Jul 1, 2026 source file |
| San Antonio Regional Hospital Upland, CA Blood test, clotting time | $185.00 | $16.50 | -1021% | Apr 2, 2026 source file |
| Riverside University Medical Center Moreno Valley, CA HC Prothrombin Time | $297.75 | $297.75 | — | — source file |
| Riverside University Medical Center Moreno Valley, CA HC Prothrombin Time | $297.75 | $297.75 | — | — source file |
Outpatient: lowest $4.00, median $54.90, highest $297.75 — a 74.4× difference within the same market.
As an inpatient, the same code is billed by 9 facilities here, median $54.90. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
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.