Total T4 test cost in Jacksonville, FL — inpatient
In Jacksonville, FL, 7 hospitals list a cash price for total thyroxine (T4) blood test as an inpatient: from $10.29 to $137.18, with a median of $137.18. The lowest listed price is at University of Florida Health in Jacksonville — $126.89 less than the median here. Across Florida, the median is $91.20 at 166 hospitals.
Cash prices at 7 facilities across 4 cities for code 84436, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Nov 12, 2025 and Aug 6, 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 Jacksonville, FL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| University of Florida Health in Jacksonville lowest Jacksonville, FL · (904) 244-4000 HB PC THYROXINE TOTAL File of Mar 31, 2026 · source file | $10.29 | $18.70 | $7.82–$17.77 | 45% |
| University of Florida Health in Jacksonville Jacksonville, FL · (904) 244-4000 HB T4 File of Mar 31, 2026 · source file | $57.48 | $104.51 | $43.69–$99.28 | 45% |
| PAM Health Specialty Hospital of Jacksonville Jacksonville, FL Total Thyroxine File of Aug 6, 2026 · source file | $68.70 | $68.70 | $27.48–$58.40 | — |
| ED Fraser Memorial Hospital Macclenny, FL · (904) 259-3151 T4, TOTAL File of Nov 12, 2025 · source file | $75.00 | $75.00 | $6.73–$75.00 | — |
| Ascension St Vincent's Southside Jacksonville, FL · (904) 296-3700 THYROXIN TRUE (T-4)RIA+1 more line at this price File of Jan 1, 2026 · source file | $137.18 | $370.75 | $6.04–$370.75 | 63% |
| St. Vincent's Medical Center-Clay County Middleburg, FL · (904) 602-1000 THYROXIN TRUE (T-4)RIA+1 more line at this price File of Jan 1, 2026 · source file | $137.18 | $370.75 | $6.04–$370.75 | 63% |
| Ascension St Vincent's Riverside Jacksonville, FL · (904) 308-7300 THYROXIN TRUE (T-4)RIA File of Jan 1, 2026 · source file | $137.18 | $370.75 | $6.04–$137.18 | 63% |
| Ascension St Vincent's St Johns County Saint Johns, FL · (904) 450-6020 THYROXIN TRUE (T-4)RIA+1 more line at this price File of Jan 1, 2026 · source file | $137.18 | $370.75 | $6.04–$370.75 | 63% |
Inpatient: lowest $10.29, median $137.18, highest $137.18 — a 13.3× difference within the same market.
As an outpatient, the same code is billed by 13 facilities here, median $148.80 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 4 of 7 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.