C-peptide test cost in Indianapolis, IN — inpatient
In Indianapolis-Carmel-Greenwood, IN, 14 hospitals list a cash price for C-peptide blood test as an inpatient: from $83.39 to $318.00, with a median of $303.60. The lowest listed price is at Franciscan Health Indianapolis and 1 other hospital — $220.21 less than the median here. Across Indiana, the median is $132.53 at 84 hospitals.
Cash prices at 14 facilities across 7 cities for code 84681, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Jan 1, 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 Indianapolis-Carmel-Greenwood, IN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Franciscan Health Indianapolis lowest Indianapolis, IN · (317) 528-5000 C-Peptide File of Jan 1, 2026 · source file | $83.39 | $361.00 | $16.44–$324.90 | 77% |
| Franciscan St Francis Health - Carmel lowest Carmel, IN · (317) 528-5000 C-Peptide File of Jan 1, 2026 · source file | $83.39 | $361.00 | $16.44–$324.90 | 77% |
| Franciscan Health Mooresville Mooresville, IN · (317) 831-1160 C-Peptide File of Jan 1, 2026 · source file | $91.69 | $361.00 | $16.44–$324.90 | 75% |
| Riverview Health Noblesville, IN · (317) 773-0760 C PEPTIDE File of Apr 1, 2026 · source file | $127.20 | $212.00 | — | 40% |
| Eskenazi Health Indianapolis, IN · (317) 880-4818 HC C-Peptide File of Mar 1, 2026 · source file | $127.80 | $142.00 | $20.00–$142.00 | 10% |
| Endo Surgery Center Carmel, IN C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| St. Vincent Fishers Hospital Fishers, IN · (317) 415-9000 C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| Naab Road Surgery Center Indianapolis, IN C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| Ascension St. Vincent Seton Speciality Hospital Indianapolis, IN C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| Carmel AmbSurg Carmel, IN C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| St. Vincent Carmel Hospital Carmel, IN · (317) 582-7000 C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| St. Vincent Heart Center of Indiana Carmel, IN · (317) 583-5000 C-PEPTIDE File of Jan 1, 2026 · source file | $303.60 | $506.00 | $9.84–$47.45 | 40% |
| Ascension St. Vincent Anderson Hospital Anderson, IN · (765) 649-2511 C-PEPTIDE File of Jan 1, 2026 · source file | $313.20 | $522.00 | $9.84–$47.45 | 40% |
| Ascension St Vincent Mercy Elwood, IN · (765) 552-4743 C-PEPTIDE File of Jan 1, 2026 · source file | $318.00 | $530.00 | $9.84–$47.45 | 40% |
Inpatient: lowest $83.39, median $303.60, highest $318.00 — a 3.8× difference within the same market.
As an outpatient, the same code is billed by 19 facilities here, median $303.60 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 4 of 13 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.