Syphilis test (treponemal) cost in Seattle, WA — inpatient
In Seattle-Tacoma-Bellevue, WA, 17 hospitals list a cash price for syphilis antibody test (Treponema pallidum) as an inpatient: from $10.64 to $141.53, with a median of $63.30. The lowest listed price is at Overlake Medical Center & Clinics — $52.66 less than the median here. Across Washington, the median is $68.00 at 55 hospitals.
Cash prices at 17 facilities across 14 cities for code 86780, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Apr 14, 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 Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Overlake Medical Center & Clinics lowest Bellevue, WA · (425) 688-5000 Hc Antibody Treponema Pallidum Rflx Lab4773 File of Apr 1, 2026 · source file | $10.64 | $21.28 | — | 50% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Antibody Treponema Pallidum Lab4898 File of Apr 1, 2026 · source file | $11.48 | $22.96 | — | 50% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Antibody Treponema Pallidum File of Apr 1, 2026 · source file | $12.30 | $24.60 | — | 50% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc T Pallidum Screening Cascade File of Apr 1, 2026 · source file | $12.70 | $25.39 | — | 50% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc T Pallidum Ab (Fta-Ab) File of Apr 1, 2026 · source file | $17.95 | $35.90 | — | 50% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Antibody; Treponema Pallidum File of Apr 1, 2026 · source file | $22.80 | $45.60 | — | 50% |
| Valley Medical Center Renton, WA · (425) 228-3450 Antibody Treponema Pallidum File of Mar 12, 2026 · source file | $42.00 | $60.00 | — | 30% |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 TREPONEMA PALLIDUM - TECH File of Jan 1, 2026 · source file | $44.37 | $87.00 | $55.72–$69.60 | 49% |
| Saint Clare Hospital Lakewood, WA · (253) 588-1711 HC TREPONEMAL IGG AB File of Feb 28, 2026 · source file | $51.64 | $179.13 | $128.98–$134.35 | 71% |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC TREPONEMAL IGG AB File of Feb 28, 2026 · source file | $54.49 | $179.13 | $128.98–$134.35 | 70% |
| Highline Medical Center Burien, WA · (206) 431-5237 HC TREPONEMAL IGG AB File of Feb 28, 2026 · source file | $54.70 | $179.13 | $77.03–$161.22 | 69% |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC TREPONEMAL IGG AB File of Feb 28, 2026 · source file | $56.22 | $179.13 | $128.98–$134.35 | 69% |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC TREPONEMAL IGG AB File of Feb 28, 2026 · source file | $59.33 | $179.13 | $128.98–$134.35 | 67% |
| St Elizabeth Hospital Enumclaw, WA · (360) 825-2505 HC TREPONEMAL IGG AB File of Feb 28, 2026 · source file | $63.30 | $179.13 | $50.16–$161.22 | 65% |
| Snoqualmie Valley Hospital Snoqualmie, WA · (425) 831-2300 Facility Fee HC T PALLIDUM AB (FTA-AB)+6 more lines at this price File of Apr 14, 2026 · source file | $67.81 | $116.91 | $12.98–$107.56 | 42% |
| Swedish Edmonds Edmonds, WA · (425) 640-4000 HC ANTIBODY TREPONEMA PALLIDUM LAB+1 more line at this price File of Apr 1, 2026 · source file | $69.60 | $145.00 | — | 52% |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC ANTIBODY TREPONEMA PALLIDUM LAB+2 more lines at this price File of Apr 1, 2026 · source file | $69.60 | $145.00 | — | 52% |
| Swedish Medical Center Seattle, WA · (206) 386-6000 HC ANTIBODY TREPONEMA PALLIDUM CDM+2 more lines at this price File of Apr 1, 2026 · source file | $69.60 | $145.00 | — | 52% |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC ANTIBODY TREPONEMA PALLIDUM CDM+2 more lines at this price File of Apr 1, 2026 · source file | $69.60 | $145.00 | — | 52% |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC TREPONEMA PALLIDUM - AB+2 more lines at this price File of Apr 1, 2026 · source file | $75.40 | $145.00 | — | 48% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Lab Miscellaneous File of Apr 1, 2026 · source file | $107.99 | $215.98 | — | 50% |
| Cascade Valley Hospital Arlington, WA · (360) 435-2133 HC TREPONEMA PALLIDUM File of Mar 26, 2026 · source file | $120.00 | $150.00 | $12.00–$135.00 | 20% |
| Franciscan Specialty Care Tacoma, WA TREPONEMA PALLIDUM File of Mar 16, 2026 · source file | $141.53 | $141.53 | $141.53 | — |
Inpatient: lowest $10.64, median $63.30, highest $141.53 — a 13.3× difference within the same market.
As an outpatient, the same code is billed by 16 facilities here, median $61.32 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 9 of 10 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 6 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 it is
A treponemal antibody test detects antibodies to the bacterium that causes syphilis. Many labs now screen with it first and confirm with an RPR (86592).
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.