C-peptide test cost in Minneapolis, MN
In Minneapolis-St. Paul-Bloomington, MN-WI, 22 hospitals list a cash price for C-peptide blood test: from $16.64 to $151.20, with a median of $52.16. The lowest listed price is at Regions Hospital — $35.52 less than the median here. Across Minnesota, the median is $82.38 at 60 hospitals.
Cash prices at 22 facilities across 19 cities for code 84681, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Jan 29, 2026 and Aug 13, 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 Minneapolis-St. Paul-Bloomington, MN-WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Regions Hospital lowest St. Paul, MN · (651) 254-1616 Chemistry source file | $16.64 | $64.00 | $20.34–$51.20 | 74% |
| North Memorial Health Care Robbinsdale, MN · (763) 520-5200 C-peptide (protein) level source file | $20.55 | $39.00 | $15.05–$37.46 | 47% |
| Maple Grove Hospital Maple Grove, MN · (763) 581-1000 C-peptide (protein) level source file | $20.55 | $39.00 | $15.05–$37.46 | 47% |
| Cambridge Medical Center Cambridge, MN · (763) 689-7700 HCHG C-PEPTIDE SERUM File of Jun 16, 2026 · source file | $30.41 | $54.30 | $10.93–$68.69 | 44% |
| Buffalo Hospital Buffalo, MN · (763) 682-1212 HCHG C-PEPTIDE SERUM File of Jun 16, 2026 · source file | $30.41 | $54.30 | $10.93–$68.69 | 44% |
| River Falls Area Hospital River Falls, WI · (715) 307-6000 HCHG C-PEPTIDE SERUM File of Jun 15, 2026 · source file | $30.41 | $54.30 | $10.93–$112.95 | 44% |
| Abbott Northwestern Hospital Minneapolis, MN · (612) 863-4000 HCHG C-PEPTIDE QUEST File of Jun 16, 2026 · source file | $31.68 | $66.00 | $13.28–$70.45 | 52% |
| Mercy Hospital Coon Rapids, MN · (762) 236-6000 HCHG C-PEPTIDE QUEST File of Jun 17, 2026 · source file | $31.68 | $66.00 | $13.28–$70.45 | 52% |
| Allina United Hospital St. Paul, MN · (651) 241-8000 HCHG C-PEPTIDE QUEST File of Jun 16, 2026 · source file | $31.68 | $66.00 | $13.28–$70.45 | 52% |
| Abbott Northwestern Hospital Minneapolis, MN · (612) 863-4000 HCHG C-PEPTIDE SERUM File of Jun 16, 2026 · source file | $33.26 | $69.30 | $13.94–$70.45 | 52% |
| Allina United Hospital St. Paul, MN · (651) 241-8000 HCHG C-PEPTIDE SERUM File of Jun 16, 2026 · source file | $33.26 | $69.30 | $13.94–$70.45 | 52% |
| Mercy Hospital Coon Rapids, MN · (762) 236-6000 HCHG C-PEPTIDE SERUM File of Jun 17, 2026 · source file | $33.26 | $69.30 | $13.94–$70.45 | 52% |
| Buffalo Hospital Buffalo, MN · (763) 682-1212 HCHG C-PEPTIDE QUEST File of Jun 16, 2026 · source file | $36.96 | $66.00 | $13.28–$70.45 | 44% |
| Cambridge Medical Center Cambridge, MN · (763) 689-7700 HCHG C-PEPTIDE QUEST File of Jun 16, 2026 · source file | $36.96 | $66.00 | $13.28–$70.45 | 44% |
| River Falls Area Hospital River Falls, WI · (715) 307-6000 HCHG C-PEPTIDE QUEST File of Jun 15, 2026 · source file | $36.96 | $66.00 | $13.28–$112.95 | 44% |
| Methodist Hospital St. Louis Park, MN · (952) 993-5000 Chemistry source file | $41.34 | $159.00 | $18.85–$119.25 | 74% |
| Westfields Hospital New Richmond, WI · (715) 246-2101 Chemistry source file | $45.76 | $87.00 | $20.81–$87.00 | 47% |
| M Health Fairview St. John's Hospital Maplewood, MN · (651) 232-7000 HC C-PEPTIDE File of Feb 5, 2026 · source file | $58.55 | $146.00 | $18.33–$184.26 | 60% |
| M Health Fairview Woodwinds Hospital Woodbury, MN · (651) 232-2185 HC C-PEPTIDE File of Feb 5, 2026 · source file | $58.55 | $146.00 | $18.33–$184.26 | 60% |
| Fairview Lakes Health Services Wyoming, MN · (952) 892-2101 HC C-PEPTIDE File of Feb 5, 2026 · source file | $58.55 | $146.00 | $18.33–$184.26 | 60% |
| M Health Fairview Southdale Hospital Edina, MN · (952) 924-5000 HC C-PEPTIDE File of Feb 6, 2026 · source file | $58.55 | $146.00 | $18.33–$184.26 | 60% |
| M Health Fairview University of Mn Medical Center Minneapolis, MN · (612) 624-1765 Outpatient Services+1 more line at this price File of Feb 6, 2026 · source file | $58.56 | $146.01 | $18.33–$184.26 | 60% |
| Fairview Bethesda Hospital St. Paul, MN HC C-PEPTIDE File of Jan 29, 2026 · source file | $58.56 | $146.01 | $20.48–$131.41 | 60% |
| Fairview Northland Regional Hospital Princeton, MN · (952) 892-2101 HC C-PEPTIDE File of Jan 29, 2026 · source file | $58.56 | $146.01 | $18.33–$184.26 | 60% |
| M Health Fairview Ridges Hospital Burnsville, MN · (952) 892-2000 HC C-PEPTIDE File of Feb 6, 2026 · source file | $62.05 | $146.00 | $18.33–$184.26 | 58% |
| Hudson Hospital Hudson, WI · (715) 531-6000 Chemistry source file | $99.24 | $220.00 | $41.62–$220.00 | 55% |
| Lakeview Hospital Stillwater, MN · (651) 430-4509 Chemistry source file | $101.49 | $274.30 | $0.64–$246.87 | 63% |
| Mille Lacs Health System Onamia, MN · (320) 532-3154 C-PEPTIDE File of Aug 13, 2026 · source file | $151.20 | $216.00 | $43.20–$216.00 | 30% |
Outpatient: lowest $16.64, median $52.16, highest $151.20 — a 9.1× difference within the same market.
As an inpatient, the same code is billed by 22 facilities here, median $52.16. 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 22 of 22 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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.