C-peptide test cost in Detroit, MI — inpatient
In Detroit-Warren-Dearborn, MI, 20 hospitals list a cash price for C-peptide blood test as an inpatient: from $21.28 to $150.00, with a median of $64.10. The lowest listed price is at Henry Ford Providence Southfield Hospital and 1 other hospital — $42.82 less than the median here. Across Michigan, the median is $63.28 at 77 hospitals.
Cash prices at 20 facilities across 16 cities for code 84681, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Dec 31, 2025 and May 8, 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 Detroit-Warren-Dearborn, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Henry Ford Providence Southfield Hospital lowest Southfield, MI · (248) 849-3000 REF-C-PEPTIDE+1 more line at this price File of Jan 1, 2026 · source file | $21.28 | $38.00 | $15.18–$37.40 | 44% |
| Henry Ford Providence Novi Hospital - Novi Campus lowest Novi, MI · (248) 849-3000 REF-C-PEPTIDE+1 more line at this price File of Jan 1, 2026 · source file | $21.28 | $38.00 | $15.18–$37.40 | 44% |
| Henry Ford Health St John Hospital Detroit, MI · (313) 343-4000 C-PEPTIDE File of Jan 1, 2026 · source file | $36.40 | $65.00 | $16.07–$33.40 | 44% |
| Ascension River District Hospital East China Township, MI · (810) 329-7111 C-PEPTIDE File of Jan 1, 2026 · source file | $36.61 | $65.38 | $16.07–$33.40 | 44% |
| Henry Ford Providence Novi Hospital - Novi Campus Novi, MI · (248) 849-3000 C-PEPTIDE+1 more line at this price File of Jan 1, 2026 · source file | $39.76 | $71.00 | $15.18–$37.40 | 44% |
| Henry Ford Health Warren Hospital Warren, MI · (586) 573-5000 C-PEPTIDE File of Jan 1, 2026 · source file | $39.76 | $71.00 | $16.07–$33.40 | 44% |
| Henry Ford Providence Southfield Hospital Southfield, MI · (248) 849-3000 C-PEPTIDE File of Jan 1, 2026 · source file | $39.76 | $71.00 | $14.05–$37.40 | 44% |
| McLaren Macomb Mount Clemens, MI · (586) 493-8000 C-Peptide File of Dec 31, 2025 · source file | $50.30 | $100.60 | $11.38–$64.21 | 50% |
| McLaren Oakland Pontiac, MI · (248) 338-5000 C-Peptide File of Dec 31, 2025 · source file | $51.90 | $103.80 | $11.38–$74.86 | 50% |
| St Joseph Mercy Oakland Pontiac, MI · (248) 858-3000 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $11.38–$90.00 | 35% |
| St Mary Mercy Livonia Livonia, MI · (734) 655-4800 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $11.38–$90.00 | 35% |
| St Joseph Mercy Livingston Hospital Brighton, MI · (517) 545-6000 HC Warde C-Peptide File of Mar 31, 2026 · source file | $58.50 | $90.00 | $11.38–$90.00 | 35% |
| St Mary Mercy Livonia Livonia, MI · (734) 655-4800 HC C-Peptide File of Mar 31, 2026 · source file | $63.70 | $98.00 | $11.38–$98.00 | 35% |
| St Joseph Mercy Livingston Hospital Brighton, MI · (517) 545-6000 HC C-Peptide File of Mar 31, 2026 · source file | $63.70 | $98.00 | $11.38–$98.00 | 35% |
| St Joseph Mercy Oakland Pontiac, MI · (248) 858-3000 HC C-Peptide File of Mar 31, 2026 · source file | $63.70 | $98.00 | $11.38–$98.00 | 35% |
| Karmanos Cancer Center Detroit, MI · (800) 576-6266 C-Peptide File of Dec 31, 2025 · source file | $69.70 | $139.40 | $11.38–$104.55 | 50% |
| McLaren Lapeer Region Lapeer, MI · (810) 667-5500 C-Peptide File of Dec 31, 2025 · source file | $70.60 | $141.20 | $11.38–$73.99 | 50% |
| McLaren Port Huron Port Huron, MI · (810) 987-5000 C-Peptide File of Dec 31, 2025 · source file | $73.85 | $147.70 | $11.38–$84.65 | 50% |
| Beaumont Hospital, Troy Troy, MI · (248) 964-8800 Hc C Peptide File of Apr 1, 2026 · source file | $83.00 | $83.00 | — | — |
| Corewell Health Wayne Hospital Wayne, MI · (734) 467-4175 Hc C Peptide File of Apr 1, 2026 · source file | $83.00 | $83.00 | — | — |
| Beaumont Hospital - Taylor Taylor, MI · (313) 295-5000 Hc C Peptide File of Apr 1, 2026 · source file | $83.00 | $83.00 | — | — |
| Beaumont Hospital - Grosse Pointe Grosse Pointe, MI · (313) 473-1000 Hc C Peptide File of Apr 1, 2026 · source file | $83.00 | $83.00 | — | — |
| Corewell Health Trenton Hospital Trenton, MI · (734) 671-3800 Hc C Peptide File of Apr 1, 2026 · source file | $83.00 | $83.00 | — | — |
| VHS Childrens Hospital of Michigan Detroit, MI · (313) 745-5437 C-PEPTIDE, REFERENCE LAB File of Apr 6, 2026 · source file | $93.00 | $124.00 | — | 25% |
| Surgeons Choice Medical Center Southfield, MI C PEPTIDE REF File of May 8, 2026 · source file | $150.00 | $150.00 | $18.36–$20.39 | — |
Inpatient: lowest $21.28, median $64.10, highest $150.00 — a 7.0× difference within the same market.
As an outpatient, the same code is billed by 25 facilities here, median $58.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 10 of 14 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.
6 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84681 ($90.50). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Hospital | Cash price | File |
|---|---|---|
| VHS Childrens Hospital of Michigan Detroit, MIC-PEPTIDE | $2.74 | file |
| RIM - Rehabilitation Institute of Michigan Detroit, MIC-PEPTIDE | $2.74 | file |
| VHS Detroit Receiving Hospital Detroit, MIC-PEPTIDE | $2.74 | file |
| Harper University Hospital Detroit, MIC-PEPTIDE | $2.74 | file |
| Harper University Hospital Detroit, MIC-PEPTIDE | $2.74 | file |
| Karmanos Cancer Center Detroit, MIC-PEPTIDE (SOLC) | $6.83 | file |