Insulin test cost in Nashville, TN
In Nashville-Davidson--Murfreesboro--Franklin, TN, 20 hospitals list a cash price for insulin blood test: from $14.86 to $1,004.08, with a median of $73.74. The lowest listed price is at Saint Thomas Hospital for Specialty Surgery — $58.88 less than the median here. Across Tennessee, the median is $41.16 at 87 hospitals.
- The median here, $73.74, is 19% above the US median of $61.71.
- That is 6.5× Medicare's 2026 national rate for the same service ($11.43).
- Nashville, TN ranks 2nd of 2 metro areas in Tennessee by median, cheapest first.
- 9 of 20 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 20 facilities across 17 cities for code 83525, as an outpatient — the setting a self-pay patient normally buys. Collected Oct 31, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Oct 1, 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 Nashville-Davidson--Murfreesboro--Franklin, TN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Saint Thomas Hospital for Specialty Surgery lowest Nashville, TN ASSAY OF INSULIN File of Apr 14, 2026 · source file | $14.86 | — | $10.29–$584.01 | — |
| Williamson Medical Center Franklin, TN · (615) 435-5000 INSULIN TOTAL File of Aug 1, 2026 · source file | $24.81 | $44.00 | $17.73–$41.80 | 44% |
| Macon Community Hospital Lafayette, TN · (615) 666-2147 INSULIN LC+1 more line at this price File of Mar 21, 2026 · source file | $41.16 | $68.60 | $7.07–$61.74 | 40% |
| Sumner Regional Medical Center Gallatin, TN · (615) 328-8888 Insulin; total File of Jul 10, 2026 · source file | $41.48 | $178.04 | $23.11 | 77% |
| Vanderbilt Wilson County Hospital Lebanon, TN · (615) 444-2250 HC INSULIN TOTAL SERUM File of Oct 1, 2026 · source file | $44.08 | $152.00 | — | 71% |
| Riverview Regional Medical Center Carthage, TN · (615) 735-9815 Insulin; total File of Jul 10, 2026 · source file | $48.35 | $148.30 | $49.82 | 67% |
| Metro Nashville General Hospital Nashville, TN · (615) 341-4000 Insulin, Fasting ARUP File of Sep 1, 2026 · source file | $59.40 | $99.00 | — | 40% |
| Saint Thomas Rutherford Hospital Murfreesboro, TN · (615) 396-4100 INSULIN LEVEL+1 more line at this price File of Jan 1, 2026 · source file | $72.20 | $240.65 | $10.29–$44.02 | 70% |
| Saint Thomas West Hospital Harding Pk Nashville, TN · (615) 222-2111 INSULIN LEVEL+1 more line at this price File of Jan 1, 2026 · source file | $72.20 | $240.65 | $10.29–$44.02 | 70% |
| Stones River Hospital Woodbury, TN · (615) 563-4001 INSULIN LEVEL+1 more line at this price File of Jul 1, 2026 · source file | $72.20 | $240.65 | $8.02–$44.02 | 70% |
| Trousdale Medical Center Hartsville, TN · (615) 374-2221 Insulin; total File of Jul 10, 2026 · source file | $75.27 | $148.46 | $33.43 | 49% |
| Williamson Medical Center Franklin, TN · (615) 435-5000 INSULIN SERUM TOTAL File of Aug 1, 2026 · source file | $107.58 | $190.80 | $76.89–$181.26 | 44% |
| Tristar Northcrest Medical Center Springfield, TN · (615) 384-2411 INSULIN TOTAL+1 more line at this price File of Sep 1, 2026 · source file | $247.88 | $247.88 | $11.43–$203.26 | — |
| Tristar Ashland City Medical Center Ashland City, TN · (615) 792-3030 Insulin; total +1 more line at this price File of Sep 1, 2026 · source file | $326.78 | $326.78 | $5.14–$2,000.00 | — |
| Tristar Centennial Medical Center Nashville, TN · (615) 342-1000 INSULIN TOTAL+1 more line at this price File of Sep 1, 2026 · source file | $347.00 | $347.00 | $11.43–$232.49 | — |
| Tristar Summit Medical Center Mt Juliet, TN · (615) 316-3000 INSULIN TOTAL+1 more line at this price File of Sep 1, 2026 · source file | $417.00 | $417.00 | $5.14–$366.96 | — |
| Tristar Horizon Medical Center Dickson, TN · (615) 446-0446 INSULIN TOTAL+1 more line at this price File of Sep 1, 2026 · source file | $563.40 | $563.40 | $11.43–$518.33 | — |
| Tristar Stonecrest Medical Center Smyrna, TN · (615) 768-2000 Insulin; total +1 more line at this price File of Sep 1, 2026 · source file | $768.60 | $768.60 | $11.43–$707.11 | — |
| Tristar Skyline Medical Center Nashville, TN · (615) 769-2000 INSULIN TOTAL+1 more line at this price File of Sep 1, 2026 · source file | $781.63 | $781.63 | $11.43–$766.00 | — |
| Tristar Southern Hills Medical Center Antioch, TN · (615) 781-4000 INSULIN TOTAL+1 more line at this price File of Sep 1, 2026 · source file | $845.00 | $845.00 | $11.43–$743.60 | — |
| Tristar Hendersonville Medical Center Hendersonville, TN · (615) 338-1000 Insulin; total +1 more line at this price File of Sep 1, 2026 · source file | $1,004.08 | $1,004.08 | $11.43–$923.75 | — |
Outpatient: lowest $14.86, median $73.74, highest $1,004.08 — a 67.6× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $65.80. 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 4 of 18 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 insulin test is, what the price covers and why prices differ: Insulin test explained.