Total T4 test cost in Sacramento, CA
In Sacramento-Roseville-Folsom, CA, 13 hospitals list a cash price for total thyroxine (T4) blood test: from $37.28 to $123.00, with a median of $49.25. The lowest listed price is at Mercy General Hospital — $11.97 less than the median here. Across California, the median is $39.20 at 183 hospitals.
Cash prices at 13 facilities across 7 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 28, 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 Sacramento-Roseville-Folsom, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy General Hospital lowest Sacramento, CA · (916) 453-4453 THYROXINE TOTAL | $37.28 | $171.00 | $5.18–$171.00 | 78% | Feb 28, 2026 source file |
| Kaiser Foundation Hospital - Roseville Roseville, CA · (916) 784-4000 ASSAY OF THYROXINE TOTAL | $39.20 | $70.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - South Sacramento Sacramento, CA · (916) 688-2000 ASSAY OF THYROXINE TOTAL | $39.20 | $70.00 | $6.00–$20.00 | 44% | — source file |
| Kaiser Foundation Hospital - Sacramento Sacramento, CA · (916) 973-5000 ASSAY OF THYROXINE TOTAL | $39.20 | $70.00 | $6.00–$20.00 | 44% | — source file |
| Woodland Memorial Hospital Woodland, CA · (530) 662-3961 THYROXINE TOTAL | $46.86 | $171.00 | $5.18–$171.00 | 73% | Feb 28, 2026 source file |
| Mercy San Juan Medical Center Carmichael, CA · (916) 537-5000 THYROXINE TOTAL | $46.86 | $171.00 | $5.18–$171.00 | 73% | Feb 28, 2026 source file |
| Methodist Hospital of Sacramento Sacramento, CA · (916) 423-6010 THYROXINE TOTAL | $49.25 | $171.00 | $5.18–$171.00 | 71% | Feb 28, 2026 source file |
| Mercy Hospital of Folsom Folsom, CA · (916) 983-7400 THYROXINE TOTAL | $66.52 | $171.00 | $5.18–$157.32 | 61% | Feb 28, 2026 source file |
| Shriners Childrens - Northern California Sacramento, CA · (916) 453-2000 ASSAY OF TOTAL THYROXINE | $71.50 | $71.50 | $4.22–$536.00 | — | — source file |
| Sutter Auburn Faith Hospital Auburn, CA · (530) 888-4500 HCHG THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Roseville Medical Center Roseville, CA · (916) 781-1000 HCHG CORE THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Roseville Medical Center Roseville, CA · (916) 781-1000 HCHG THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Auburn Faith Hospital Auburn, CA · (530) 888-4500 HCHG CORE THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Davis Hospital Davis, CA · (530) 757-5108 HCHG CORE THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Davis Hospital Davis, CA · (530) 757-5108 HCHG THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Medical Center, Sacramento Sacramento, CA · (916) 454-2222 HCHG CORE THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Sutter Medical Center, Sacramento Sacramento, CA · (916) 454-2222 HCHG THYROXINE (T4) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $37.28, median $49.25, highest $123.00 — a 3.3× difference within the same market.
As an inpatient, the same code is billed by 13 facilities here, median $49.25. 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 6 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
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.