Syphilis test (treponemal) cost in Urban Honolulu, HI — inpatient
In Urban Honolulu, HI, 4 hospitals list a cash price for syphilis antibody test (Treponema pallidum) as an inpatient: from $33.60 to $82.50, with a median of $33.60. The lowest listed price is at Straub Clinic & Hospital and 2 other hospitals. Across Hawaii, the median is $107.40 at 10 hospitals.
Cash prices at 4 facilities across 2 cities for code 86780, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 12, 2026 and Apr 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 Urban Honolulu, HI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Straub Clinic & Hospital lowest Honolulu, HI · (808) 522-4000 T.PALLIDUM AB BY TP PA File of Feb 12, 2026 · source file | $33.60 | $56.00 | $42.00–$47.60 | 40% |
| Pali Momi Medical Center lowest Aiea, HI · (808) 486-6000 T.PALLIDUM AB BY TP PA File of Feb 12, 2026 · source file | $33.60 | $56.00 | $42.00–$47.60 | 40% |
| Kapiolani Medical Center for Women & Children lowest Honolulu, HI · (808) 983-6000 T.PALLIDUM AB BY TP PA File of Feb 12, 2026 · source file | $33.60 | $56.00 | $16.35–$50.40 | 40% |
| Straub Clinic & Hospital Honolulu, HI · (808) 522-4000 FTA-ABS File of Feb 12, 2026 · source file | $34.20 | $57.00 | $42.75–$48.45 | 40% |
| Kapiolani Medical Center for Women & Children Honolulu, HI · (808) 983-6000 FTA-ABS File of Feb 12, 2026 · source file | $34.20 | $57.00 | $16.64–$51.30 | 40% |
| Pali Momi Medical Center Aiea, HI · (808) 486-6000 FTA-ABS File of Feb 12, 2026 · source file | $34.20 | $57.00 | $42.75–$48.45 | 40% |
| Kaiser Foundation Hospital - Moanalua Honolulu, HI · (808) 432-0000 ANTIBODY TREPONEMA PALLIDUM File of Apr 1, 2026 · source file | $82.50 | $110.00 | $13.00–$64.00 | 25% |
Inpatient: lowest $33.60, median $33.60, highest $82.50 — a 2.5× difference within the same market.
As an outpatient, the same code is billed by 7 facilities here, median $82.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 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.