Calprotectin test cost in San Francisco, CA
In San Francisco-Oakland-Fremont, CA, 14 hospitals list a cash price for fecal calprotectin (stool inflammation test): from $21.00 to $194.00, with a median of $72.80. The lowest listed price is at MarinHealth Medical Center — $51.80 less than the median here. Across California, the median is $72.80 at 149 hospitals.
- The median here, $72.80, is 52% below the US median of $152.05.
- That is 3.7× Medicare's 2026 national rate for the same service ($19.63).
- San Francisco, CA ranks 2nd of 4 metro areas in California by median, cheapest first.
- 1 of 14 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 14 facilities across 13 cities for code 83993, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 12, 2026; the hospital files themselves were last updated between Feb 23, 2026 and Jul 22, 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 |
|---|---|---|---|---|
| MarinHealth Medical Center lowest Greenbrae, CA · (415) 925-7900 ASSAY FOR CALPROTECTIN FECAL File of Mar 26, 2026 · source file | $21.00 | $35.00 | $19.63–$2,330.00 | 40% |
| Stanford Health Care Tri-Valley Pleasanton, CA · (925) 847-3000 HC 6956 12798r Calprotectin File of Apr 1, 2026 · source file | $40.00 | $100.00 | — | 60% |
| St. Rose Hospital Hayward, CA · (510) 782-6200 LC-FECAL CALPROTECTIN File of Feb 23, 2026 · source file | $45.00 | $150.00 | $18.28–$127.50 | 70% |
| St. Rose Hospital Hayward, CA · (510) 782-6200 LC - CALPROTECTIN File of Feb 23, 2026 · source file | $47.25 | $157.50 | $18.28–$133.88 | 70% |
| Kaiser Foundation Hospital - San Francisco San Francisco, CA · (415) 833-2646 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - San Rafael San Rafael, CA · (415) 444-2000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - Antioch Antioch, CA · (925) 813-6500 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - Walnut Creek Walnut Creek, CA · (925) 295-4000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - Redwood City Redwood City, CA · (650) 299-2000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA · (510) 752-1000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - San Leandro San Leandro, CA · (510) 454-1000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - Fremont Fremont, CA · (510) 784-4000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Fnd Hospital - Richmond Campus Richmond, CA · (510) 752-1000 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Kaiser Foundation Hospital - South San Francisco South San Francisco, CA · (650) 742-3200 ASSAY OF CALPROTECTIN FECAL File of Apr 1, 2026 · source file | $72.80 | $130.00 | $18.00–$55.00 | 44% |
| Stanford Health Care Tri-Valley Pleasanton, CA · (925) 847-3000 Fcalpro Calprotectin, Fecal File of Apr 1, 2026 · source file | $79.20 | $198.00 | — | 60% |
| Chinese Hospital San Francisco, CA · (415) 677-2480 Stool calprotectin (protein) level File of Jul 22, 2026 · source file | $194.00 | $194.00 | $19.63–$349.20 | — |
Outpatient: lowest $21.00, median $72.80, highest $194.00 — a 9.2× difference within the same market.
As an inpatient, the same code is billed by 12 facilities here, median $72.80. 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 3 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 calprotectin test is, what the price covers and why prices differ: Calprotectin test explained.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 83993 ($146.25). 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 |
|---|---|---|
| Sequoia Hospital Redwood City, CARL-A-CALPRO FEC 3002859 | $13.65 | file |