Syphilis test (treponemal) cost in Chico, CA
In Chico, CA, 2 hospitals list a cash price for syphilis antibody test (Treponema pallidum): from $34.55 to $48.00, with a median of $41.28. The lowest listed price is at Orchard Hospital — $6.73 less than the median here. Across California, the median is $22.58 at 186 hospitals.
Cash prices at 2 facilities across 2 cities for code 86780, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Sep 26, 2026 and Sep 26, 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 Chico, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Orchard Hospital lowest Gridley, CA · (530) 846-5671 Analysis for antibody, Treponema pallidum File of Sep 26, 2026 · source file | $34.55 | $57.58 | $14.97–$53.26 | 40% |
| Oroville Hospital Oroville, CA · (530) 533-8500 Treponema source file | $48.00 | $96.00 | $13.00–$106.00 | 50% |
| Oroville Hospital Oroville, CA · (530) 533-8500 *Treponema Pallidum source file | $56.00 | $112.00 | $30.00–$123.00 | 50% |
Outpatient: lowest $34.55, median $41.28, highest $48.00 — a 1.4× difference within the same market.
Cash or insurance?
At 2 of 2 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 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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 86780 ($49.78). 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 |
|---|---|---|
| Oroville Hospital Oroville, CA*Treponema Ab Mha-tp | $4.00 | file |