Zinc test cost in San Francisco, CA
In San Francisco-Oakland-Fremont, CA, 16 hospitals list a cash price for zinc blood test: from $4.06 to $85.00, with a median of $21.28. The lowest listed price is at Sequoia Hospital — $17.22 less than the median here. Across California, the median is $11.00 at 159 hospitals.
- The median here, $21.28, is 61% below the US median of $54.00.
- That is 1.9× Medicare's 2026 national rate for the same service ($11.39).
- San Francisco, CA ranks 5th of 5 metro areas in California by median, cheapest first.
- 3 of 16 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 16 facilities across 14 cities for code 84630, as an outpatient — the setting a self-pay patient normally buys. Collected Oct 30, 2026; the hospital files themselves were last updated between Mar 26, 2026 and Sep 30, 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 Francisco-Oakland-Fremont, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Sequoia Hospital lowest Redwood City, CA · (650) 369-5811 RL-A-ZINC U 20462 File of Sep 30, 2026 · source file | $4.06 | $11.89 | $2.50–$40.44 | 66% |
| Stanford Health Care Tri-Valley Pleasanton, CA · (925) 847-3000 ZINC File of Apr 1, 2026 · source file | $4.12 | $10.30 | — | 60% |
| Sequoia Hospital Redwood City, CA · (650) 369-5811 RL-A-ZINC WB 2009373 File of Sep 30, 2026 · source file | $6.22 | $18.22 | $3.83–$40.44 | 66% |
| MarinHealth Medical Center Greenbrae, CA · (415) 925-7900 ASSAY OF ZINC File of Mar 26, 2026 · source file | $13.32 | $22.20 | $11.39–$2,330.00 | 40% |
| Sequoia Hospital Redwood City, CA · (650) 369-5811 RL-A-ZN RBC 3003758 File of Sep 30, 2026 · source file | $15.70 | $46.00 | $9.66–$46.00 | 66% |
| Kaiser Foundation Hospital - Fremont Fremont, CA · (510) 784-4000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - San Rafael San Rafael, CA · (415) 444-2000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA · (510) 752-1000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - Redwood City Redwood City, CA · (650) 299-2000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - Antioch Antioch, CA · (925) 813-6500 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - Walnut Creek Walnut Creek, CA · (925) 295-4000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - San Leandro San Leandro, CA · (510) 454-1000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Fnd Hospital - Richmond Campus Richmond, CA · (510) 752-1000 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - San Francisco San Francisco, CA · (415) 833-2646 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Kaiser Foundation Hospital - South San Francisco South San Francisco, CA · (650) 742-3200 ASSAY OF ZINC File of Apr 1, 2026 · source file | $21.28 | $38.00 | $11.00–$35.00 | 44% |
| Chinese Hospital San Francisco, CA · (415) 677-2480 Zinc level File of Jul 22, 2026 · source file | $53.00 | $53.00 | $6.04–$260.90 | — |
| Mills-Peninsula Medical Center Burlingame, CA · (650) 696-5400 HCHG ZINC File of Apr 1, 2026 · source file | $85.00 | $85.00 | — | — |
| Mills Health Center San Mateo, CA · (650) 696-5400 HCHG ZINC File of Apr 1, 2026 · source file | $85.00 | $85.00 | — | — |
Outpatient: lowest $4.06, median $21.28, highest $85.00 — a 20.9× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $21.28. 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 13 of 13 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 zinc test is, what the price covers and why prices differ: Zinc test explained.
2 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84630 ($35.00). 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.
| Hospital | Cash price | File |
|---|---|---|
| St. Rose Hospital Hayward, CALC -ZINCLEVELSERUM | $1.58 | file |
| Sequoia Hospital Redwood City, CARL-A-ZINC 20097 | $1.71 | file |