C-peptide test cost in Denver, CO
In Denver-Aurora-Centennial, CO, 22 hospitals list a cash price for C-peptide blood test: from $16.17 to $1,770.00, with a median of $617.29. The lowest listed price is at Denver Health and Hospital Authority — $601.12 less than the median here. Across Colorado, the median is $179.50 at 44 hospitals.
Cash prices at 22 facilities across 10 cities for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 1, 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 Denver-Aurora-Centennial, CO.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Denver Health and Hospital Authority lowest Denver, CO · (303) 436-4927 HC SERUM, C-PEPTIDE ARUP 0070103 File of Apr 30, 2026 · source file | $16.17 | $46.20 | $15.85–$72.76 | 65% |
| Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=CSHB C-PEPTIDE. File of Apr 17, 2026 · source file | $37.70 | $58.00 | $5.80–$53.36 | 35% |
| Denver Health and Hospital Authority Denver, CO · (303) 436-4927 HC C-PEPTIDE ARUP 0070103 File of Apr 30, 2026 · source file | $49.21 | $140.60 | $20.81–$78.74 | 65% |
| Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=CSHB C-PEPTIDE File of Apr 17, 2026 · source file | $86.45 | $133.00 | $13.30–$122.36 | 35% |
| Childrens Hospital Colorado Aurora, CO · (720) 777-1234 HB=C PEPTIDE File of Apr 17, 2026 · source file | $137.80 | $212.00 | $21.20–$195.04 | 35% |
| Craig Hospital Englewood, CO HC C-PEPTIDE File of Jun 25, 2026 · source file | $138.12 | $362.50 | $17.69–$326.25 | 62% |
| Cobalt Rehabilitation Hospital Denver Westminster, CO C-Peptide File of Aug 6, 2026 · source file | $208.10 | $208.10 | $15.61–$176.89 | — |
| AdventHealth Castle Rock Castle Rock, CO · (720) 455-5000 HC ASSAY OF C-PEPTIDE - C-PEPTIDE+2 more lines at this price File of Apr 1, 2026 · source file | $409.35 | $409.35 | — | — |
| AdventHealth Porter Denver, CO · (303) 778-1955 HC ASSAY OF C-PEPTIDE - C-PEPTIDE+2 more lines at this price File of Apr 1, 2026 · source file | $409.35 | $409.35 | — | — |
| AdventHealth Parker Parker, CO · (303) 269-4000 HC C PEPTIDE LEVEL - QWDL+2 more lines at this price File of Apr 1, 2026 · source file | $409.35 | $409.35 | — | — |
| AdventHealth Littleton Littleton, CO · (303) 730-8900 HC ASSAY OF C-PEPTIDE - C-PEPTIDE+2 more lines at this price File of Apr 1, 2026 · source file | $409.35 | $409.35 | — | — |
| HCA Healthone Belmar ER Lakewood, CO · (303) 788-5000 C-PEPTIDE+1 more line at this price File of Sep 1, 2026 · source file | $599.24 | $599.24 | $20.81–$539.32 | — |
| HCA Healthone Swedish Englewood, CO · (303) 788-5000 C-PEPTIDE+1 more line at this price File of Sep 1, 2026 · source file | $599.24 | $599.24 | $20.81–$539.32 | — |
| HCA Healthone Southwest ER Littleton, CO · (303) 788-5000 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $599.24 | $599.24 | $20.81–$539.32 | — |
| Spalding at Psl Denver, CO · (303) 839-6000 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $635.34 | $635.34 | $20.81–$571.81 | — |
| HCA Healthone Spalding Rehabilitation Aurora, CO C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $635.34 | $635.34 | $20.81–$571.81 | — |
| HCA Healthone Mountain Ridge Thornton, CO · (303) 451-7800 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $648.42 | $648.42 | $20.81–$583.58 | — |
| HCA Healthone Northeast ER Thornton, CO · (303) 451-7800 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $648.42 | $648.42 | $20.81–$583.58 | — |
| HCA Healthone Presbyterian St Lukes Denver, CO · (303) 839-6000 C-PEPTIDE+1 more line at this price File of Sep 1, 2026 · source file | $1,240.00 | $1,240.00 | $20.81–$595.20 | — |
| HCA Healthone Sky Ridge Lone Tree, CO · (720) 225-1000 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $1,305.26 | $1,305.26 | $20.81–$1,174.73 | — |
| HCA Healthone South Parker ER Parker, CO C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $1,305.26 | $1,305.26 | $20.81–$1,174.73 | — |
| Centennial Hospital A Campus of Tmca Englewood, CO · (303) 873-5511 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $1,601.84 | $1,601.84 | $20.81–$1,441.66 | — |
| HCA Healthone Aurora Aurora, CO · (303) 873-5511 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $1,601.84 | $1,601.84 | $20.81–$1,441.66 | — |
| HCA Healthone Central Park ER Denver, CO · (303) 320-2121 C-peptide +1 more line at this price File of Sep 1, 2026 · source file | $1,770.00 | $1,770.00 | $20.81–$1,593.00 | — |
| HCA Healthone Rose Denver, CO · (303) 320-2121 C-PEPTIDE+1 more line at this price File of Sep 1, 2026 · source file | $1,770.00 | $1,770.00 | $20.81–$1,593.00 | — |
Outpatient: lowest $16.17, median $617.29, highest $1,770.00 — a 109.5× difference within the same market.
As an inpatient, the same code is billed by 8 facilities here, median $308.73. 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 3 of 18 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
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.