C-peptide test cost in Kansas City, MO — inpatient
In Kansas City, MO-KS, 8 hospitals list a cash price for C-peptide blood test as an inpatient: from $42.34 to $367.11, with a median of $140.06. The lowest listed price is at NKC Health — $97.72 less than the median here. Across Missouri, the median is $104.36 at 60 hospitals.
Cash prices at 8 facilities across 7 cities for code 84681, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 6, 2026 and Apr 20, 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 Kansas City, MO-KS.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| NKC Health lowest North Kansas City, MO · (816) 691-2000 C PEPTIDE File of Mar 6, 2026 · source file | $42.34 | $146.00 | $87.60–$119.43 | 71% |
| Liberty Hospital Liberty, MO · (816) 781-7200 C PEPTIDE source file | $45.00 | $164.00 | $45.76–$133.82 | 73% |
| Children's Mercy Hospital Kansas City, MO · (816) 234-3000 C PEPTIDE MAIN source file | $88.32 | $184.00 | $88.32–$165.60 | 52% |
| Children's Mercy Hospital Kansas Overland Park, KS · (913) 696-8000 C PEPTIDE MAIN source file | $88.32 | $184.00 | $88.32–$165.60 | 52% |
| Cass Regional Medical Center Harrisonville, MO · (816) 380-5888 C PEPTIDE 84681 File of Apr 7, 2026 · source file | $191.80 | $274.00 | $35.62–$265.51 | 30% |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 C-PEPTIDE File of Apr 20, 2026 · source file | $271.81 | $388.29 | $330.05 | 30% |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC ASSAY OF C-PEPTIDE - C-PEPTIDE+1 more line at this price File of Apr 1, 2026 · source file | $367.11 | $367.11 | — | — |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC ASSAY OF C-PEPTIDE - C-PEPTIDE+1 more line at this price File of Apr 1, 2026 · source file | $367.11 | $367.11 | — | — |
Inpatient: lowest $42.34, median $140.06, highest $367.11 — a 8.7× difference within the same market.
As an outpatient, the same code is billed by 18 facilities here, median $285.66 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 6 of 6 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 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.