TB blood test (IGRA) cost in Flagstaff, AZ
In Flagstaff, AZ, 2 hospitals list a cash price for TB blood test measuring immune response (IGRA, gamma interferon): from $98.58 to $107.46, with a median of $103.02. The lowest listed price is at Page Hospital — $4.44 less than the median here. Across Arizona, the median is $64.54 at 33 hospitals.
Cash prices at 2 facilities across 2 cities for code 86480, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Mar 2, 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 Flagstaff, AZ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Page Hospital lowest Page, AZ · (928) 645-2424 LAB TB MEAS IMMUNITY GAMMA INTERFRN | $98.58 | $186.00 | $61.98–$176.70 | 47% | Mar 2, 2026 source file |
| Flagstaff Medical Center Flagstaff, AZ · (928) 779-3366 *REF* Quantiferon TB Gold | $107.46 | $214.91 | $59.98–$5,000.00 | 50% | Feb 28, 2026 source file |
Outpatient: lowest $98.58, median $103.02, highest $107.46 — a 1.1× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $103.02. 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 2 of 2 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.