Hospitals report these codes with terse, inconsistent chargemaster text. This plain-English title was written by an AI model from that text and has not been reviewed by a person, so it can be wrong. The prices on this page come straight from hospital filings and do not depend on it.
Original text from hospital filings
PROTEIN C - ACTIVITY
Pendleton, OR
See all hospitals reporting CPT 85303 →Price type
Commonspirit Oregon’s median price of $386 is 1530% above the median hospital's median price ($24), higher than 98% of the 2,557 hospitals reporting CPT 85303. The highlighted bar is where this hospital falls; shaded is the middle 50% of hospitals.
Negotiated rates from the hospital’s own file: 4 payers, 8 plan rates. A facility fee, a professional fee, a per diem and a case rate are different bills, so each is listed on its own. Open a payer to see it across hospitals.
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| # | |||||||
|---|---|---|---|---|---|---|---|
| 1 | Cigna commercial|all plans fee schedule · inpatient | $232 | $232 | — | — | — | $232 – $232 |
| 2 | Cigna commercial|all plans fee schedule · outpatient | $240 | $240 | — | — | — | $240 – $240 |
| 3 | Regence commercial|all plans fee schedule · inpatient | $343 | $343 | — | — | — | $343 – $343 |
| 4 | Regence commercial|all plans fee schedule · outpatient | $343 | $343 | — | — | — | $343 – $343 |
| 5 | Aetna commercial|all plans fee schedule · inpatient | $408 | $408 | — | — | — | $408 – $408 |
| 6 | Aetna commercial|all plans fee schedule · outpatient | $408 | $408 | — | — | — | $408 – $408 |
| 7 | UnitedHealthcare commercial|all plans fee schedule · inpatient | $408 | $408 | — | — | — | $408 – $408 |
| 8 | UnitedHealthcare commercial|all plans fee schedule · outpatient | $408 | $408 | — | — | — | $408 – $408 |
Last updated: Feb 28, 2026
See Protein C activity blood test pricing across every hospital in the network reporting it, or ask Claude or any MCP client directly — see how to connect.