Total T4 test cost in Bakersfield, CA
In Bakersfield-Delano, CA, 3 hospitals list a cash price for total thyroxine (T4) blood test: from $29.68 to $37.44, with a median of $34.51. The lowest listed price is at Good Samaritan Hospital — $4.83 less than the median here. Across California, the median is $39.20 at 185 hospitals.
Cash prices at 3 facilities 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 Feb 28, 2026 and Feb 28, 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 Bakersfield-Delano, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Good Samaritan Hospital lowest Bakersfield, CA · (661) 215-7500 ASSAY OF TOTAL THYROXINE source file | $29.68 | $42.40 | $5.18–$126.00 | 30% |
| Mercy Hospital Bakersfield, CA · (661) 632-5000 MH-THYROXINE TOTAL File of Feb 28, 2026 · source file | $34.51 | $93.00 | $6.87–$93.00 | 63% |
| Bakersfield Memorial Hospital Bakersfield, CA · (661) 327-1792 MH-THYROXINE TOTAL File of Feb 28, 2026 · source file | $37.44 | $102.00 | $6.87–$102.00 | 63% |
| Bakersfield Memorial Hospital Bakersfield, CA · (661) 327-1792 THYROXINE TOTAL File of Feb 28, 2026 · source file | $38.91 | $106.00 | $6.87–$106.00 | 63% |
| Mercy Hospital Bakersfield, CA · (661) 632-5000 THYROXINE TOTAL File of Feb 28, 2026 · source file | $39.33 | $106.00 | $6.87–$106.00 | 63% |
| Good Samaritan Hospital Bakersfield, CA · (661) 215-7500 THYROXINE (THYROID CHEMICAL); TOTAL source file | $59.36 | $84.80 | $5.18–$126.00 | 30% |
Outpatient: lowest $29.68, median $34.51, highest $37.44 — a 1.3× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $155.73. 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 3 of 3 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.
9 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84436 ($52.00). 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.
| Hospital | Cash price | File |
|---|---|---|
| Kern Valley Healthcare District Mountain Mesa, CAThyroxine (thyroid chemical), total | $0.92 | file |
| Bakersfield Memorial Hospital Bakersfield, CAH-T4-THYROXINE H7846 | $2.21 | file |
| Mercy Hospital Bakersfield, CAH-T4-THYROXINE H7846 | $2.23 | file |
| Bakersfield Memorial Hospital Bakersfield, CARL-A-FTIP 3005976B | $2.41 | file |
| Mercy Hospital Bakersfield, CARL-A-FTIP 3005976B | $2.43 | file |
| Ridgecrest Regional Hospital Ridgecrest, CAAssay of total thyroxine | $3.18 | file |
| Ridgecrest Regional Hospital Ridgecrest, CAT4 total (867) | $3.18 | file |
| Bakersfield Memorial Hospital Bakersfield, CAH-T4-THYROXINE 7844 | $3.31 | file |
| Mercy Hospital Bakersfield, CAH-T4-THYROXINE 7844 | $3.34 | file |