C-peptide test cost in Columbus, OH
In Columbus, OH, 20 hospitals list a cash price for C-peptide blood test: from $19.80 to $417.35, with a median of $55.80. The lowest listed price is at Fairfield Medical Center — $36.00 less than the median here. Across Ohio, the median is $76.91 at 132 hospitals.
Cash prices at 20 facilities across 14 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 Oct 22, 2025 and Apr 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 Columbus, OH.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Fairfield Medical Center lowest Lancaster, OH · (740) 687-8000 C-Peptide, Serum | $19.80 | $44.00 | $16.07–$44.00 | 55% | Feb 26, 2026 source file |
| Berger Hospital Circleville, OH · (740) 420-8008 Hc C Peptide | $20.15 | $31.00 | — | 35% | Apr 1, 2026 source file |
| Doctors Hospital Columbus, OH · (614) 544-2136 Hc C Peptide | $31.85 | $49.00 | — | 35% | Apr 1, 2026 source file |
| Grant Medical Center Columbus, OH · (614) 566-9164 Hc C Peptide | $31.85 | $49.00 | — | 35% | Apr 1, 2026 source file |
| Pickerington Methodist Hospital Pickerington, OH · (614) 544-2136 Hc C Peptide | $31.85 | $49.00 | — | 35% | Apr 1, 2026 source file |
| Grove City Methodist Grove City, OH · (614) 544-2136 Hc C Peptide | $31.85 | $49.00 | — | 35% | Apr 1, 2026 source file |
| Dublin Methodist Hospital Dublin, OH · (614) 544-8000 Hc C Peptide | $31.85 | $49.00 | — | 35% | Apr 1, 2026 source file |
| Riverside Methodist Hospital Columbus, OH · (614) 566-5000 Hc C Peptide | $31.85 | $49.00 | — | 35% | Apr 1, 2026 source file |
| Grady Memorial Hospital Delaware, OH · (740) 368-5145 Hc C Peptide | $34.45 | $53.00 | — | 35% | Apr 1, 2026 source file |
| Fairfield Medical Center Lancaster, OH · (740) 687-8000 Insulin and C-Peptide, Serum | $50.85 | $113.00 | $16.07–$113.00 | 55% | Feb 26, 2026 source file |
| Nationwide Children's Hospital Columbus, OH · (614) 722-2000 ASSAY OF C-PEPTIDE | $53.10 | $59.00 | $27.73–$57.82 | 10% | Apr 1, 2026 source file |
| Mount Carmel Dublin Dublin, OH · (380) 898-9000 HC Warde C-Peptide | $58.50 | $90.00 | $18.29–$90.00 | 35% | Mar 31, 2026 source file |
| Mount Carmel St Ann's Westerville, OH · (614) 546-4034 HC Warde C-Peptide | $58.50 | $90.00 | $18.29–$632.00 | 35% | Mar 31, 2026 source file |
| Diley Ridge Medical Center Canal Winchester, OH · (614) 838-7911 HC Warde C-Peptide | $58.50 | $90.00 | $18.29–$632.00 | 35% | Mar 31, 2026 source file |
| Mount Carmel East Columbus, OH · (614) 234-5000 HC Warde C-Peptide | $58.50 | $90.00 | $18.29–$632.00 | 35% | Mar 31, 2026 source file |
| Mount Carmel Grove City Grove City, OH HC Warde C-Peptide | $58.50 | $90.00 | $18.29–$632.00 | 35% | Mar 31, 2026 source file |
| Mount Carmel New Albany Surgical Hospital New Albany, OH · (614) 775-6600 HC Warde C-Peptide | $58.50 | $90.00 | $18.29–$632.00 | 35% | Mar 31, 2026 source file |
| Hocking Valley Community Hospital Logan, OH · (740) 380-8000 HC Cch So C-Peptide | $138.15 | $138.15 | — | — | — source file |
| Morrow County Hospital Mount Gilead, OH · (419) 946-5015 C-peptide (protein) level | $173.55 | $267.00 | $10.28–$258.99 | 35% | Oct 22, 2025 source file |
| Galion Community Hospital Galion, OH · (419) 468-4841 HC CCH SO C-PEPTIDE | $264.35 | $311.00 | $105.74–$286.12 | 15% | — source file |
| Licking Memorial Hospital Newark, OH · (740) 348-4000 HC Assay of C-Peptide - C-Peptide | $417.35 | $417.35 | $20.39–$417.35 | — | — source file |
Outpatient: lowest $19.80, median $55.80, highest $417.35 — a 21.1× difference within the same market.
As an inpatient, the same code is billed by 18 facilities here, median $43.78. 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 10 of 11 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.