Rheumatoid factor test cost in Friday Harbor, WA
In Friday Harbor, WA, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $33.15 to $33.15, with a median of $33.15. Across Washington, the median is $31.95 at 32 hospitals.
Cash prices at 1 facility for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.
Lowest$33.15PeaceHealth Peace Island Medical Center
Median$33.15half pay less
Highest$33.15in this market
Difference1.0×highest vs lowest
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| PeaceHealth Peace Island Medical Center Friday Harbor, WA · (360) 378-2141 RHEUMATOID FACTOR LEVEL | $33.15 | $51.00 | — | 35% | — source file |
Outpatient: lowest $33.15, median $33.15, highest $33.15.
What it is
Rheumatoid factor is an antibody found in many people with rheumatoid arthritis. The test is part of the workup for joint pain and swelling.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.