CA-125 test cost in Williston, ND
In Williston, ND, 1 hospital lists a cash price for CA-125 blood test (ovarian cancer marker): from $36.21 to $36.21, with a median of $36.21. Across North Dakota, the median is $101.60 at 9 hospitals.
Cash prices at 1 facility for code 86304, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 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 Williston, ND.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Medical Center lowest Williston, ND · (701) 774-7400 CANCER ANTIGEN 125 | $36.21 | $62.43 | $20.81–$58.69 | 42% | Feb 28, 2026 source file |
| Mercy Medical Center Williston, ND · (701) 774-7400 CA 125 | $135.14 | $233.00 | $20.81–$219.02 | 42% | Feb 28, 2026 source file |
Outpatient: lowest $36.21, median $36.21, highest $36.21.
As an inpatient, the same code is billed by 1 facility here, median $36.21. 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 the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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
CA-125 is a protein that can be high in ovarian cancer. The test is used to evaluate some pelvic masses and to follow treatment.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.