Partial thromboplastin time (PTT), clotting test at Kaiser Permanente Central Hospital
CPT 85730 · Seattle, WA
These are Kaiser Permanente Central Hospital's own posted figures from its standard-charges file dated April 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 15 Washington hospitals we index that post a cash price for this service: lowest $23.78, median $37.92, highest $156.79. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Seattle Children's Hospital Seattle, WA | 1.5 mi | $112.60 | $112.60 | 2026-03-31 |
| Swedish Medical Center / Cherry Hill Seattle, WA | 2.0 mi | $37.92 | $79.00 | 2026-04-01 |
| Swedish Medical Center Seattle, WA | 2.0 mi | $37.92 | $79.00 | 2026-04-01 |
| Virginia Mason Medical Center Seattle, WA | 2.9 mi | $35.70 | $70.00 | 2026-01-01 |
| Overlake Hospital Medical Center & Clinics Bellevue, WA | 4.1 mi | $156.79 | $313.58 | 2026-04-01 |
| Highline Medical Center Burien, WA | 13.2 mi | $25.19 | $82.48 | 2026-02-28 |
| Swedish Edmonds Hospital Edmonds, WA | 14.0 mi | $37.92 | $79.00 | 2026-04-01 |
| Swedish Issaquah Issaquah, WA | 14.0 mi | $37.92 | $79.00 | 2026-04-01 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 85730 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| THROMBOPLASTIN TIME PARTIAL PTT line 9320 | both | $63.20 | $79.00 | $4.00 – $16.00 |
| Thromboplastin time partial mod TC line 9321 | both | $4.00 – $16.00 | ||
| PSBC ONLY APTT line 13872 | both | $41.20 | $51.50 | $4.00 – $16.00 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Kaiser Permanente Central Hospital prices