Total T4 test cost in Chico, CA
In Chico, CA, 2 hospitals list a cash price for total thyroxine (T4) blood test: from $5.24 to $55.00, with a median of $30.12. The lowest listed price is at Orchard Hospital — $24.88 less than the median here. Across California, the median is $39.20 at 185 hospitals.
Cash prices at 2 facilities across 2 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Sep 26, 2026 and Sep 26, 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 Chico, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Orchard Hospital lowest Gridley, CA · (530) 846-5671 Thyroxine (thyroid chemical), total File of Sep 26, 2026 · source file | $5.24 | $8.74 | $2.27–$8.27 | 40% |
| Oroville Hospital Oroville, CA · (530) 533-8500 T4, Total Thyroxine source file | $55.00 | $110.00 | $7.00–$121.00 | 50% |
Outpatient: lowest $5.24, median $30.12, highest $55.00 — a 10.5× difference within the same market.
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
A total T4 test measures all the thyroxine hormone in the blood, both bound and free. Most doctors now order free T4 (84439) instead, which is less affected by pregnancy and medicines.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.