Insulin test cost in Nashville, TN — inpatient
In Nashville-Davidson--Murfreesboro--Franklin, TN, 4 hospitals list a cash price for insulin blood test as an inpatient: from $44.08 to $82.08, with a median of $72.20. The lowest listed price is at Vanderbilt Wilson County Hospital — $28.12 less than the median here. Across Tennessee, the median is $34.76 at 44 hospitals.
Cash prices at 4 facilities across 4 cities for code 83525, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Oct 1, 2025 and Oct 1, 2025.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Nashville-Davidson--Murfreesboro--Franklin, TN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Vanderbilt Wilson County Hospital lowest Lebanon, TN HC INSULIN TOTAL SERUM | $44.08 | $152.00 | $10.83–$121.60 | 71% | Oct 1, 2025 source file |
| Saint Thomas West Hospital Harding Pk Nashville, TN INSULIN LEVEL | $72.20 | $240.65 | $10.29–$44.02 | 70% | — source file |
| Saint Thomas Rutherford Hospital Murfreesboro, TN INSULIN LEVEL | $72.20 | $240.65 | $10.29–$44.02 | 70% | — source file |
| Vanderbilt University Medical Center Nashville, TN HC INSULIN TOTAL SERUM | $82.08 | $152.00 | $10.83–$121.60 | 46% | Oct 1, 2025 source file |
Inpatient: lowest $44.08, median $72.20, highest $82.08 — a 1.9× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $72.20 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 4 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
An insulin test measures insulin in the blood. It is used to investigate low blood sugar and sometimes to estimate insulin resistance.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.