CA-125 test cost in Bozeman, MT
In Bozeman, MT, 2 hospitals list a cash price for CA-125 blood test (ovarian cancer marker): from $91.20 to $108.80, with a median of $100.00. The lowest listed price is at Deaconess Regional Medical Center — $8.80 less than the median here. Across Montana, the median is $100.00 at 8 hospitals.
Cash prices at 2 facilities across 2 cities for code 86304, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between Nov 19, 2024 and Nov 19, 2024.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Bozeman, MT.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Deaconess Regional Medical Center lowest Bozeman, MT · (406) 585-5000 HC IMMUNOASSAY TUMOR ANTIGEN CA 125 - CA 125 | $91.20 | $114.00 | $17.22–$22.29 | 20% | Nov 19, 2024 source file |
| Big Sky Medical Center Big Sky, MT · (406) 995-6995 HC IMMUNOASSAY TUMOR ANTIGEN CA 125 - CA 125 | $108.80 | $136.00 | $17.22–$22.29 | 20% | Nov 19, 2024 source file |
Outpatient: lowest $91.20, median $100.00, highest $108.80 — a 1.2× difference within the same market.
Cash or insurance?
At 0 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
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.