PTT blood test cost in San Diego, CA
In San Diego-Chula Vista-Carlsbad, CA, 18 hospitals list a cash price for partial thromboplastin time (PTT) clotting test: from $6.00 to $126.68, with a median of $33.75. The lowest listed price is at Paradise Valley Hospital — $27.75 less than the median here. Across California, the median is $62.50 at 221 hospitals.
- The median here, $33.75, is 25% below the US median of $45.00.
- That is 5.6× Medicare's 2026 national rate for the same service ($6.01).
- San Diego, CA ranks 2nd of 5 metro areas in California by median, cheapest first.
- Every hospital here lists a cash price below its full list price.
Cash prices at 18 facilities across 11 cities for code 85730, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 30, 2026 and Sep 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 Diego-Chula Vista-Carlsbad, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Paradise Valley Hospital lowest National City, CA · (619) 470-4321 PTT - 85730 - 1350974+3 more lines at this price File of Sep 1, 2026 · source file | $6.00 | $144.38 | $4.50–$144.38 | 96% |
| Palomar Medical Center Poway Poway, CA · (858) 485-6511 Thromboplastin Time Partial File of Apr 1, 2026 · source file | $6.38 | $10.64 | — | 40% |
| Palomar Medical Center Escondido Escondido, CA Thromboplastin Time Partial File of Apr 1, 2026 · source file | $6.38 | $10.64 | — | 40% |
| Palomar Medical Center Escondido Escondido, CA Lupus PTT-D File of Apr 1, 2026 · source file | $6.97 | $11.62 | — | 40% |
| Palomar Medical Center Poway Poway, CA · (858) 485-6511 Lupus PTT-D File of Apr 1, 2026 · source file | $6.97 | $11.62 | — | 40% |
| Palomar Medical Center Escondido Escondido, CA Lupus PTT-LA File of Apr 1, 2026 · source file | $7.21 | $12.02 | — | 40% |
| Palomar Medical Center Poway Poway, CA · (858) 485-6511 Lupus PTT-LA File of Apr 1, 2026 · source file | $7.21 | $12.02 | — | 40% |
| Palomar Medical Center Poway Poway, CA · (858) 485-6511 Thromboplastin time, partial (PTT) File of Apr 1, 2026 · source file | $7.80 | $13.00 | — | 40% |
| Palomar Medical Center Escondido Escondido, CA Thromboplastin time, partial (PTT) File of Apr 1, 2026 · source file | $7.80 | $13.00 | — | 40% |
| Sharp Chula Vista Medical Center Chula Vista, CA · (619) 502-5800 HC PARTIAL THROMBOPLASTIN TIME File of Apr 1, 2026 · source file | $8.53 | $11.37 | $1.00–$43.65 | 25% |
| Sharp Memorial Hospital San Diego, CA · (858) 939-3400 HC PARTIAL THROMBOPLASTIN TIME File of Apr 1, 2026 · source file | $8.53 | $11.37 | $0.72–$10.23 | 25% |
| Sharp Coronado Hospital and Healthcare Center Coronado, CA · (619) 435-6251 HC PARTIAL THROMBOPLASTIN TIME File of Apr 1, 2026 · source file | $8.53 | $11.37 | $1.00–$10.23 | 25% |
| Grossmont Hospital La Mesa, CA · (619) 465-0711 HC PARTIAL THROMBOPLASTIN TIME File of Apr 1, 2026 · source file | $8.53 | $11.37 | $1.10–$625.89 | 25% |
| Palomar Medical Center Poway Poway, CA · (858) 485-6511 Lupus PTT Ratio Treated Reflex Test File of Apr 1, 2026 · source file | $22.80 | $38.00 | — | 40% |
| Palomar Medical Center Escondido Escondido, CA Lupus PTT Ratio Treated Reflex Test File of Apr 1, 2026 · source file | $22.80 | $38.00 | — | 40% |
| Scripps Green Hospital La Jolla, CA · (858) 554-3600 HC Aptt File of Mar 30, 2026 · source file | $33.75 | $135.00 | $6.01–$108.00 | 75% |
| Scripps Memorial Hospital La Jolla La Jolla, CA · (858) 626-4123 HC Aptt File of Mar 30, 2026 · source file | $33.75 | $135.00 | $6.01–$108.00 | 75% |
| Scripps Mercy Hospital San Diego San Diego, CA · (619) 294-8111 HC Aptt File of Mar 30, 2026 · source file | $33.75 | $135.00 | $6.01–$108.00 | 75% |
| Scripps Memorial Hospital Encinitas Encinitas, CA · (760) 753-6501 HC Aptt File of Mar 30, 2026 · source file | $33.75 | $135.00 | $6.01–$108.00 | 75% |
| Scripps Mercy Hospital Chula Vista San Diego, CA · (619) 294-8111 HC Aptt File of Mar 30, 2026 · source file | $33.75 | $135.00 | $6.01–$108.00 | 75% |
| Rady Children's Hospital - San Diego San Diego, CA · (858) 576-1700 Scripps Nicu-Aptt File of Apr 1, 2026 · source file | $39.00 | $52.00 | — | 25% |
| UC San Diego Medical Center San Diego, CA · (619) 543-6222 Coagulation Assessment Blood Test File of Apr 1, 2026 · source file | $62.15 | $113.00 | $6.01–$152.55 | 45% |
| Rady Children's Hospital - San Diego San Diego, CA · (858) 576-1700 Rch Scrmer Hc-Lupus Anticoagulant.Ptt-A+6 more lines at this price File of Apr 1, 2026 · source file | $88.50 | $118.00 | — | 25% |
| Sharp Chula Vista Medical Center Chula Vista, CA · (619) 502-5800 HC PTT File of Apr 1, 2026 · source file | $96.75 | $129.00 | $1.00–$126.42 | 25% |
| Sharp Memorial Hospital San Diego, CA · (858) 939-3400 HC PTT File of Apr 1, 2026 · source file | $96.75 | $129.00 | $1.00–$103.20 | 25% |
| Sharp Coronado Hospital and Healthcare Center Coronado, CA · (619) 435-6251 HC PTT File of Apr 1, 2026 · source file | $96.75 | $129.00 | $1.00–$103.20 | 25% |
| Grossmont Hospital La Mesa, CA · (619) 465-0711 HC PTT File of Apr 1, 2026 · source file | $96.75 | $129.00 | $0.50–$116.10 | 25% |
| Kaiser Foundation Hospital - San Marcos San Marcos, CA · (760) 528-6295 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 - San Diego - Zion San Diego, CA · (619) 528-5000 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 - San Diego - Clairemont Mesa San Diego, CA · (619) 528-5000 THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $111.28 | $214.00 | $3.00–$10.00 | 48% |
| Tri-City Medical Center Oceanside, CA · (760) 724-8411 Partial Thromboplastin Time+1 more line at this price File of May 29, 2026 · source file | $126.68 | $211.14 | $5.26–$166.59 | 40% |
| Rady Children's Hospital - San Diego San Diego, CA · (858) 576-1700 Rch Lab-Activated Ptt File of Apr 1, 2026 · source file | $150.00 | $200.00 | — | 25% |
| Palomar Medical Center Poway Poway, CA · (858) 485-6511 Partial Thromboplastin Time File of Apr 1, 2026 · source file | $205.66 | $342.77 | — | 40% |
| Palomar Medical Center Escondido Escondido, CA Partial Thromboplastin Time File of Apr 1, 2026 · source file | $205.66 | $342.77 | — | 40% |
Outpatient: lowest $6.00, median $33.75, highest $126.68 — a 21.1× difference within the same market.
As an inpatient, the same code is billed by 17 facilities here, median $33.75. 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 12 of 15 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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.
1 row held back from this comparison
It is 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 |
|---|---|---|
| Tri-City Medical Center Oceanside, CAPTT LC | $2.48 | file |