C-peptide test cost in Friday Harbor, WA
In Friday Harbor, WA, 1 hospital lists a cash price for C-peptide blood test: from $60.45 to $60.45, with a median of $60.45. Across Washington, the median is $106.57 at 59 hospitals.
Cash prices at 1 facility for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Friday Harbor, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| PeaceHealth Peace Island Medical Center lowest Friday Harbor, WA · (360) 378-2141 C-PEPTIDE (PROTEIN) LEVEL source file | $60.45 | $93.00 | — | 35% |
| PeaceHealth Peace Island Medical Center Friday Harbor, WA · (360) 378-2141 ASSAY OF C-PEPTIDE source file | $84.50 | $130.00 | — | 35% |
Outpatient: lowest $60.45, median $60.45, highest $60.45.
What it is
A C-peptide test shows how much insulin the pancreas is making. It helps tell type 1 from type 2 diabetes and find the cause of low blood sugar.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.