TB blood test (IGRA) cost in San Francisco, CA — inpatient
In San Francisco-Oakland-Fremont, CA, 10 hospitals list a cash price for TB blood test measuring immune response (IGRA, gamma interferon) as an inpatient: from $302.40 to $324.80, with a median of $302.40. The lowest listed price is at Kaiser Foundation Hospital - South San Francisco and 8 other hospitals. Across California, the median is $96.72 at 88 hospitals.
Cash prices at 10 facilities across 10 cities for code 86480, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 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 Francisco-Oakland-Fremont, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Foundation Hospital - South San Francisco lowest South San Francisco, CA · (650) 742-3200 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Francisco lowest San Francisco, CA · (415) 833-2646 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - Oakland/Richmond lowest Oakland, CA · (510) 752-1000 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - Walnut Creek lowest Walnut Creek, CA · (925) 295-4000 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - Fremont lowest Fremont, CA · (510) 784-4000 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - Redwood City lowest Redwood City, CA · (650) 299-2000 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Rafael lowest San Rafael, CA · (415) 444-2000 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - Antioch lowest Antioch, CA · (925) 813-6500 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Leandro lowest San Leandro, CA · (510) 454-1000 TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $302.40 | $540.00 | $57.00–$180.00 | 44% | — source file |
| Stanford Health Care Tri-Valley Pleasanton, CA · (925) 847-3000 HC Quantiferon | $324.80 | $812.00 | — | 60% | Apr 1, 2026 source file |
Inpatient: lowest $302.40, median $302.40, highest $324.80 — a 1.1× difference within the same market.
As an outpatient, the same code is billed by 11 facilities here, median $302.40 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 0 of 9 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
This blood test, known as an interferon-gamma release assay (IGRA), such as QuantiFERON, checks whether the immune system reacts to tuberculosis proteins. It is used to screen for TB infection, often for work, school or immigration, and replaces the skin test for many people.
What the price covers
The price usually covers the lab test only. The blood draw is often billed separately, and a chest X-ray after a positive result has its own charge.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 86480 ($162.58). 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.
| Stanford Health Care Tri-Valley Pleasanton, CAQuantiferon - TB | $14.00 | file |