C-peptide test cost in South Dakota
In South Dakota, 16 hospitals publish a cash price for C-peptide blood test: from $18.40 to $366.00, with a median of $129.95. The lowest price is at Monument Health Rapid City Hospital (Rapid City) and 2 other hospitals. The highest price is 19.9× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 84681. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 29, 2026. See them on a map
Lowest$18.40Monument Health Rapid City Hospital + 2 more
Median$129.95half pay less
Highest$366.00in South Dakota
Lowest saves$111.55vs the median
Hospitals in South Dakota, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Monument Health Rapid City Hospital lowest Rapid City · Rapid City, SD C-peptide (protein) level | $18.40 | $23.00 | Sep 1, 2026 source file |
| Monument Health Spearfish Hospital lowest Spearfish · Spearfish, SD C-peptide (protein) level | $18.40 | $23.00 | Sep 1, 2026 source file |
| Monument Health Sturgis Hospital lowest Sturgis · Rapid City, SD C-peptide (protein) level | $18.40 | $23.00 | Sep 1, 2026 source file |
| Huron Regional Medical Center Huron · Huron, SD C-Peptide SF | $42.00 | $70.00 | — source file |
| Black Hills Surgical Hospital Rapid City · Rapid City, SD C PEPTIDE- | $48.06 | $80.10 | — source file |
| Sanford Vermillion Hospital Vermillion · Vermillion, SD ASSAY OF C PEPTIDE 84681 | $86.40 | $108.00 | Mar 4, 2026 source file |
| Sanford Webster Hospital Webster · Webster, SD ASSAY OF C PEPTIDE 84681 | $101.60 | $127.00 | Mar 4, 2026 source file |
| Brookings Health System Brookings · Brookings, SD C Peptide | $125.50 | $251.00 | May 18, 2026 source file |
| Sanford Canton Inwood Medical Center Canton · Sioux Falls, SD-MN ASSAY OF C PEPTIDE 84681 | $134.40 | $168.00 | Mar 4, 2026 source file |
| Pioneer Memorial Hospital - Cah Viborg · Sioux Falls, SD-MN ASSAY OF C PEPTIDE 84681 | $164.00 | $164.00 | Apr 30, 2026 source file |
| Faulkton Area Medical Center Faulkton · Faulkton, SD C-PEPTIDE (SERUM) | $177.30 | $197.00 | — source file |
| Douglas County Memorial Hospital Armour · Armour, SD ASSAY OF C PEPTIDE 84681 | $185.40 | $206.00 | Jan 9, 2026 source file |
| Sanford Clear Lake Medical Center Clear Lake · Clear Lake, SD ASSAY OF C PEPTIDE 84681 | $199.20 | $249.00 | Mar 4, 2026 source file |
| Sanford Chamberlain Medical Center Chamberlain · Chamberlain, SD ASSAY OF C PEPTIDE 84681 | $236.00 | $295.00 | Mar 4, 2026 source file |
| Hans P Peterson Memorial Hospital - Cah Philip · Philip, SD Ref C Peptide | $322.00 | $322.00 | — source file |
| Winner Regional Healthcare Center Winner · Winner, SD ASSAY OF C PEPTIDE 84681 | $366.00 | $366.00 | May 7, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Rapid City, SD | 3 | $18.40 | $18.40 |
| Sioux Falls, SD-MN | 2 | $134.40 | $149.20 |
| Armour, SD | 1 | $185.40 | $185.40 |
| Brookings, SD | 1 | $125.50 | $125.50 |
| Chamberlain, SD | 1 | $236.00 | $236.00 |
| Clear Lake, SD | 1 | $199.20 | $199.20 |
| Faulkton, SD | 1 | $177.30 | $177.30 |
| Huron, SD | 1 | $42.00 | $42.00 |
| Philip, SD | 1 | $322.00 | $322.00 |
| Spearfish, SD | 1 | $18.40 | $18.40 |
| Vermillion, SD | 1 | $86.40 | $86.40 |
| Webster, SD | 1 | $101.60 | $101.60 |
| Winner, SD | 1 | $366.00 | $366.00 |
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.
C-peptide blood test in other states
- Alabama$86.02
- Alaska$168.00
- Arizona$61.77
- Arkansas$60.42
- California$63.84
- Colorado$179.50
- Connecticut$95.70
- Delaware$268.80
- District of Columbia$154.89
- Florida$36.60
- Georgia$103.35
- Hawaii$159.90
- Idaho$96.13
- Illinois$103.60
- Indiana$132.53
- Iowa$105.44
- Kansas$104.90
- Kentucky$138.85
- Louisiana$51.20
- Maine$56.24
- Maryland$43.43
- Massachusetts$117.34
- Michigan$59.45
- Minnesota$82.38
- Mississippi$75.00
- Missouri$105.75
- Montana$147.00
- Nebraska$130.18
- Nevada$154.00
- New Hampshire$131.67
- New Jersey$29.07
- New Mexico$111.00
- New York$76.84
- North Carolina$77.70
- North Dakota$109.48
- Ohio$76.91
- Oklahoma$84.80
- Oregon$90.00
- Pennsylvania$105.00
- Puerto Rico$85.65
- Rhode Island$165.60
- South Carolina$153.36
- Tennessee$63.58
- Texas$81.30
- Utah$170.08
- Vermont$186.41
- Virginia$109.20
- Washington$109.67
- West Virginia$73.50
- Wisconsin$87.50
- Wyoming$117.74
Median cash price across the state's hospitals.