PTT blood test cost in Riverside, CA
In Riverside-San Bernardino-Ontario, CA, 25 hospitals list a cash price for partial thromboplastin time (PTT) clotting test: from $4.84 to $735.25, with a median of $72.90. The lowest listed price is at Riverside University Medical Center — $68.06 less than the median here. Across California, the median is $62.50 at 221 hospitals.
- The median here, $72.90, is 62% above the US median of $45.00.
- That is 12.1× Medicare's 2026 national rate for the same service ($6.01).
- Riverside, CA ranks 3rd of 5 metro areas in California by median, cheapest first.
- 7 of 25 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 25 facilities across 20 cities for code 85730, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 1, 2026; the hospital files themselves were last updated between Jan 14, 2026 and Sep 30, 2026.
Lowest$4.84Riverside University Medical Center
Median$72.90half of hospitals charge less
Highest$735.25in this market
Difference151.9×highest vs lowest
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.
median
Lowest $4.84Highest $735.25
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Riverside University Medical Center lowest Moreno Valley, CA · (951) 486-4000 HC Qu Lupus Anti Rfl Ptt Ppnl+1 more line at this price File of Mar 30, 2026 · source file | $4.84 | $4.84 | $3.63–$7.42 | — |
| Desert Valley Hospital Victorville, CA · (760) 241-8000 PTT PARTIAL THROMBOPLASTIN File of Sep 1, 2026 · source file | $6.00 | $225.00 | $5.95–$225.00 | 97% |
| Montclair Hospital Medical Center Montclair, CA · (909) 625-8300 Hc Thromboplas Time Partial File of Sep 1, 2026 · source file | $6.00 | $249.12 | $5.71–$249.12 | 98% |
| Chino Valley Medical Center Chino, CA · (909) 627-6111 Hc Thromboplas Time Partial File of Sep 1, 2026 · source file | $6.00 | $249.12 | $5.71–$249.12 | 98% |
| Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 PTT File of Jan 14, 2026 · source file | $6.45 | $16.12 | $7.25–$13.70 | 60% |
| San Bernardino County Colton, CA · (909) 580-1000 HC THROMBOPLAS TIME PARTIAL VON WILLBRND DX PNL File of Feb 25, 2026 · source file | $9.00 | $9.00 | $5.34–$8.41 | — |
| San Bernardino County Colton, CA · (909) 580-1000 HC THROMBOPLAS TIME PARTIAL File of Feb 25, 2026 · source file | $9.50 | $9.50 | $5.34–$8.41 | — |
| St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 RL-A-RF BILL PTTT 3017033 File of Sep 30, 2026 · source file | $10.14 | $30.80 | $5.23–$38.30 | 67% |
| Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 LUPUS EVAL W/ REFLEX File of Jan 14, 2026 · source file | $11.67 | $29.17 | $13.13–$24.79 | 60% |
| Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 RL-A-RF BILL PTTT 3017033 File of Sep 30, 2026 · source file | $11.98 | $30.80 | $6.01–$38.30 | 61% |
| San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 COAGULATION ASSESSMENT BLOOD TEST; PLASMA OR WHOLE BLOOD File of May 20, 2026 · source file | $13.31 | $66.55 | $5.71–$66.55 | 80% |
| San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 THROMBOPLASTIN TIME PARTIAL File of May 20, 2026 · source file | $13.78 | $68.88 | $5.71–$68.88 | 80% |
| St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 PARTIAL THROMBO TIME File of Sep 30, 2026 · source file | $15.48 | $47.00 | $5.23–$47.00 | 67% |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD CDM File of Apr 1, 2026 · source file | $21.60 | $45.00 | — | 52% |
| Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 PARTIAL THROMBO TIME File of Sep 30, 2026 · source file | $29.17 | $75.00 | $6.01–$75.00 | 61% |
| Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 VAN WILLIBRANDS CPT5 File of Jan 14, 2026 · source file | $29.59 | $73.97 | $33.29–$62.87 | 60% |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD LAB File of Apr 1, 2026 · source file | $33.45 | $69.68 | — | 52% |
| Victor Valley Global Medical Center Victorville, CA · (760) 245-8691 LUPUS ANTICOAGULANT File of May 13, 2026 · source file | $52.00 | $52.00 | $3.68–$52.00 | — |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC THROMBOPLASTIN TIME PARTIAL File of Apr 1, 2026 · source file | $71.85 | $149.69 | — | 52% |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC SLOW ACTIVATION File of Sep 2, 2026 · source file | $72.90 | $162.00 | $4.87–$145.80 | 55% |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC SLOW ACTIVATION File of Sep 2, 2026 · source file | $72.90 | $162.00 | $4.87–$137.70 | 55% |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC SLOW ACTIVATION File of Sep 2, 2026 · source file | $72.90 | $162.00 | $6.01–$121.50 | 55% |
| Palo Verde Hospital Blythe, CA · (760) 922-4115 PTT, Activated File of Jul 1, 2026 · source file | $81.00 | $108.00 | — | 25% |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC PTT+1 more line at this price File of Sep 2, 2026 · source file | $82.80 | $184.00 | $4.87–$165.60 | 55% |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC LUPUS SCREEN PTT+1 more line at this price File of Sep 2, 2026 · source file | $82.80 | $184.00 | $4.87–$156.40 | 55% |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC PTT+1 more line at this price File of Sep 2, 2026 · source file | $82.80 | $184.00 | $6.01–$138.00 | 55% |
| Palo Verde Hospital Blythe, CA · (760) 922-4115 Vancomycin Level Trough File of Jul 1, 2026 · source file | $105.00 | $140.00 | — | 25% |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $111.28 | $214.00 | $3.00–$10.00 | 48% |
| Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $111.28 | $214.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $111.28 | $214.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $111.28 | $214.00 | $3.00–$10.00 | 48% |
| Redlands Community Hospital Redlands, CA · (909) 335-5500 Coagulation assessment blood test, plasma or whole blood File of Jun 19, 2026 · source file | $111.36 | $464.00 | $5.11–$417.60 | 76% |
| Victor Valley Global Medical Center Victorville, CA · (760) 245-8691 PTT File of May 13, 2026 · source file | $124.00 | $124.00 | $3.68–$124.00 | — |
| San Bernardino County Colton, CA · (909) 580-1000 HC THROMBOPLAS TIME PARTIAL - PTT File of Feb 25, 2026 · source file | $142.00 | $142.00 | $5.34–$102.95 | — |
| Hemet Global Medical Center Hemet, CA · (951) 652-2811 LAB PART THROMBOPLASTIN TIME File of Jun 15, 2026 · source file | $179.00 | $179.00 | $5.34–$179.00 | — |
| Menifee Global Medical Center Menifee, CA · (951) 679-8888 LAB PART THROMBOPLASTIN TIME File of May 20, 2026 · source file | $179.00 | $179.00 | $5.34–$179.00 | — |
| San Antonio Regional Hospital Upland, CA · (909) 985-2811 Coagulation assessment blood test, plasma or whole blood File of Apr 2, 2026 · source file | $185.00 | $30.00 | $1.80–$201.00 | -517% |
| Barstow Community Hospital Barstow, CA · (760) 256-1761 Coagulation assessment blood test, plasma or whole blood File of Sep 17, 2026 · source file | $388.28 | $647.14 | $6.89–$517.71 | 40% |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Ptt Plasma or Whole Blood+1 more line at this price File of Mar 30, 2026 · source file | $447.34 | $447.34 | $4.30–$447.34 | — |
| Riverside Community Hospital Riverside, CA · (951) 788-3000 PTT File of Sep 1, 2026 · source file | $735.25 | $735.25 | $110.29–$661.73 | — |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
Outpatient: lowest $4.84, median $72.90, highest $735.25 — a 151.9× difference within the same market.
As an inpatient, the same code is billed by 16 facilities here, median $72.90. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 14 of 23 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. 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 PTT blood test is, what the price covers and why prices differ: PTT blood test explained.
19 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 85730 ($46.15). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Hospital | Cash price | File |
|---|---|---|
| Eisenhower Medical Center Rancho Mirage, CAHC Alupp - Activated Partial Thrombopl Time, P | $1.14 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC 19790 - Aptt | $1.32 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC 7079 - Ptt-La Screen | $1.98 | file |
| St Bernardine Medical Center San Bernardino, CARL-A-LUPUS RFLX 3017009C | $2.20 | file |
| Community Hospital of San Bernardino San Bernardino, CARL-A-LUPUS RFLX 3017009C | $2.60 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC Aprol - Activated Partial Thrombopl Time, P | $2.98 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC Albld - Activated Partial Thrombopl Time, P | $2.98 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC Ptt | $2.98 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC Aathr - Activated Partial Thrombopl Time, P | $2.98 | file |
| Eisenhower Medical Center Rancho Mirage, CAHC 8922x - Activated Partial Thromboplastin Time | $2.98 | file |
| St Bernardine Medical Center San Bernardino, CARL-A-RFLX INPTT1 2003272A | $3.20 | file |
| St Bernardine Medical Center San Bernardino, CARL-A-PTT INHIB 2003266 | $3.58 | file |
| Community Hospital of San Bernardino San Bernardino, CARL-A-RFLX INPTT1 2003272A | $3.78 | file |
| Victor Valley Global Medical Center Victorville, CAC PTT PLASMA OR WHOLE BLOOD - LC | $4.00 | file |
| Menifee Global Medical Center Menifee, CAC PTT PLASMA OR WHOLE BLOOD - LC | $4.00 | file |
| Hemet Global Medical Center Hemet, CAC PTT PLASMA OR WHOLE BLOOD - LC | $4.00 | file |
| Riverside University Medical Center Moreno Valley, CAHC Qu Partial Thromboplastin Time | $4.14 | file |
| Riverside University Medical Center Moreno Valley, CAHC Qu Partial Thromboplastin Time | $4.14 | file |
| Community Hospital of San Bernardino San Bernardino, CARL-A-PTT INHIB 2003266 | $4.23 | file |
File Link to the hospital's own price file.