HIV test (4th generation) cost in Boise City, ID
In Boise City, ID, 4 hospitals list a cash price for HIV-1/2 antigen and antibody combination blood test (4th generation): from $31.55 to $79.95, with a median of $55.75. The lowest listed price is at St Luke's Nampa Medical Center and 1 other hospital — $24.20 less than the median here. Across Idaho, the median is $31.55 at 9 hospitals.
Cash prices at 4 facilities across 2 cities for code 87389, 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 Mar 31, 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 Boise City, ID.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| St Luke's Nampa Medical Center lowest Nampa, ID · (208) 505-2000 | $31.55 | $31.55 | — | — | — source file |
| St Luke's Regional Medical Center lowest Boise, ID · (208) 381-2222 | $31.55 | $31.55 | — | — | — source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Labcorp Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $79.95 | $123.00 | $20.80–$123.00 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC Labcorp Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $79.95 | $123.00 | $20.80–$110.70 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $79.95 | $123.00 | $20.80–$123.00 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $79.95 | $123.00 | $20.80–$110.70 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Warde Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $94.25 | $145.00 | $20.80–$145.00 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC Warde Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $94.25 | $145.00 | $20.80–$130.50 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC External Infectious Agent Agn Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $96.85 | $149.00 | $20.80–$134.10 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC External Infectious Agent Agn Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $96.85 | $149.00 | $20.80–$149.00 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Arup Infectious Agent Agn Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $96.85 | $149.00 | $20.80–$149.00 | 35% | Mar 31, 2026 source file |
| Saint Alphonsus Medical Center - Nampa Nampa, ID · (208) 463-5000 HC Arup Infectious Agent Agn Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $96.85 | $149.00 | $20.80–$134.10 | 35% | Mar 31, 2026 source file |
| St Luke's Regional Medical Center Boise, ID · (208) 381-2222 | $107.00 | $107.00 | — | — | — source file |
| St Luke's Nampa Medical Center Nampa, ID · (208) 505-2000 | $107.00 | $107.00 | — | — | — source file |
| Saint Alphonsus Regional Medical Center - Boise Boise, ID · (208) 367-2121 HC Infectious Agent Antigen Immunoassay Ql/Sq Multi Step Hiv-1 Antigen(S) Hiv-1&2 Antibodies | $921.05 | — | $20.80–$402.37 | — | Mar 31, 2026 source file |
Outpatient: lowest $31.55, median $55.75, highest $79.95 — a 2.5× difference within the same market.
As an inpatient, the same code is billed by 4 facilities here, median $55.75. 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 lab test checks blood for the HIV-1 p24 antigen and for antibodies to HIV-1 and HIV-2 at the same time. Because it detects the antigen, it can find an infection earlier than antibody-only tests and is the standard first test for HIV screening.
What the price covers
The price usually covers the screening test only. The blood draw is often billed separately, and a positive result needs a follow-up confirmation test with its own charge.