C-peptide test cost in Columbus, OH — inpatient
In Columbus, OH, 18 hospitals list a cash price for C-peptide blood test as an inpatient: from $19.80 to $417.35, with a median of $43.78. The lowest listed price is at Fairfield Medical Center — $23.98 less than the median here. Across Ohio, the median is $76.46 at 131 hospitals.
Cash prices at 18 facilities across 12 cities for code 84681, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 26, 2026 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 |
|---|---|---|---|---|
| Fairfield Medical Center lowest Lancaster, OH · (740) 687-8000 C-Peptide, Serum File of Feb 26, 2026 · source file | $19.80 | $44.00 | $19.80–$44.00 | 55% |
| Berger Hospital Circleville, OH · (740) 420-8008 Hc C Peptide File of Apr 1, 2026 · source file | $20.15 | $31.00 | — | 35% |
| Grove City Methodist Grove City, OH · (614) 544-2136 Hc C Peptide File of Apr 1, 2026 · source file | $31.85 | $49.00 | — | 35% |
| Riverside Methodist Hospital Columbus, OH · (614) 566-5000 Hc C Peptide File of Apr 1, 2026 · source file | $31.85 | $49.00 | — | 35% |
| Pickerington Methodist Hospital Pickerington, OH · (614) 544-2136 Hc C Peptide File of Apr 1, 2026 · source file | $31.85 | $49.00 | — | 35% |
| Doctors Hospital Columbus, OH · (614) 544-2136 Hc C Peptide File of Apr 1, 2026 · source file | $31.85 | $49.00 | — | 35% |
| Dublin Methodist Hospital Dublin, OH · (614) 544-8000 Hc C Peptide File of Apr 1, 2026 · source file | $31.85 | $49.00 | — | 35% |
| Grant Medical Center Columbus, OH · (614) 566-9164 Hc C Peptide File of Apr 1, 2026 · source file | $31.85 | $49.00 | — | 35% |
| Grady Memorial Hospital Delaware, OH · (740) 368-5145 Hc C Peptide File of Apr 1, 2026 · source file | $34.45 | $53.00 | — | 35% |
| Fairfield Medical Center Lancaster, OH · (740) 687-8000 Insulin and C-Peptide, Serum File of Feb 26, 2026 · source file | $50.85 | $113.00 | $50.85–$113.00 | 55% |
| Nationwide Children's Hospital Columbus, OH · (614) 722-2000 ASSAY OF C-PEPTIDE File of Apr 1, 2026 · source file | $53.10 | $59.00 | $27.73–$57.82 | 10% |
| Mount Carmel East Columbus, OH · (614) 234-5000 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $18.29–$632.00 | 35% |
| Mount Carmel Dublin Dublin, OH · (380) 898-9000 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $18.29–$90.00 | 35% |
| Mount Carmel St Ann's Westerville, OH · (614) 546-4034 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $18.29–$632.00 | 35% |
| Mount Carmel Grove City Grove City, OH HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $18.29–$632.00 | 35% |
| Diley Ridge Medical Center Canal Winchester, OH · (614) 838-7911 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $18.29–$632.00 | 35% |
| Mount Carmel New Albany Surgical Hospital New Albany, OH · (614) 775-6600 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $18.29–$632.00 | 35% |
| Galion Community Hospital Galion, OH · (419) 468-4841 HC CCH SO C-PEPTIDE File of Mar 20, 2026 · source file | $264.35 | $311.00 | $105.74–$286.12 | 15% |
| Licking Memorial Hospital Newark, OH · (740) 348-4000 HC Assay of C-Peptide - C-Peptide File of Mar 16, 2026 · source file | $417.35 | $417.35 | $20.39–$417.35 | — |
Inpatient: lowest $19.80, median $43.78, highest $417.35 — a 21.1× difference within the same market.
As an outpatient, the same code is billed by 20 facilities here, median $55.80 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 9 of 10 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.