Insulin test cost in San Jose, CA
In San Jose-Sunnyvale-Santa Clara, CA, 4 hospitals list a cash price for Insulin blood test: from $66.64 to $149.50, with a median of $93.12. The lowest listed price is at Kaiser Foundation Hospital - Santa Clara and 1 other hospital — $26.48 less than the median here. Across California, the median is $66.64 at 83 hospitals.
Cash prices at 4 facilities across 4 cities for code 83525, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Apr 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 San Jose-Sunnyvale-Santa Clara, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Foundation Hospital - Santa Clara lowest Santa Clara, CA ASSAY OF INSULIN TOTAL | $66.64 | $119.00 | $11.00–$35.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Jose lowest San Jose, CA ASSAY OF INSULIN TOTAL | $66.64 | $119.00 | $11.00–$35.00 | 44% | — source file |
| Stanford Health Care Stanford, CA HC Insulin Fasting 2hr | $119.60 | $299.00 | — | 60% | Apr 1, 2026 source file |
| Stanford Health Care Stanford, CA HC Insulin (Fast/Unspec) | $119.60 | $299.00 | — | 60% | Apr 1, 2026 source file |
| Stanford Health Care Stanford, CA HC Tolerance W/Insulin | $119.60 | $299.00 | — | 60% | Apr 1, 2026 source file |
| Lucile Salter Packard Children's Hospital at Stanford Palo Alto, CA HC Insulin Fasting 2hr | $149.50 | $299.00 | $145.28 | 50% | Mar 31, 2026 source file |
| Lucile Salter Packard Children's Hospital at Stanford Palo Alto, CA HC Tolerance W/Insulin | $149.50 | $299.00 | $145.28 | 50% | Mar 31, 2026 source file |
| Lucile Salter Packard Children's Hospital at Stanford Palo Alto, CA HC Insulin (Fast/Unspec) | $149.50 | $299.00 | $145.28 | 50% | Mar 31, 2026 source file |
Outpatient: lowest $66.64, median $93.12, highest $149.50 — a 2.2× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $66.64. 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 0 of 3 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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 83525 ($51.60). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| El Camino Hospital Mountain View, CAHC INSULIN *3 | $0.84 | file |