C-peptide test cost in Bloomington, IL — inpatient
In Bloomington, IL, 1 hospital lists a cash price for C-peptide blood test as an inpatient: from $62.00 to $62.00, with a median of $62.00. Across Illinois, the median is $103.60 at 100 hospitals.
Cash prices at 1 facility for code 84681, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 15, 2026 and Apr 15, 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 Bloomington, IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Carle BroMenn Medical Center lowest Normal, IL · (309) 454-1400 C-Peptide, S Ref | $62.00 | $62.00 | $6.20–$40.98 | — | Apr 15, 2026 source file |
| Carle BroMenn Medical Center Normal, IL · (309) 454-1400 C-Peptide Ref | $147.00 | $147.00 | $14.70–$97.17 | — | Apr 15, 2026 source file |
| Carle BroMenn Medical Center Normal, IL · (309) 454-1400 C-Peptide | $214.00 | $214.00 | $17.90–$141.45 | — | Apr 15, 2026 source file |
Inpatient: lowest $62.00, median $62.00, highest $62.00.
As an outpatient, the same code is billed by 1 facility here, median $62.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. 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.