Free T4 test cost in Flint, MI
In Flint, MI, 2 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $29.40 to $78.65, with a median of $54.03. The lowest listed price is at Henry Ford Health — $24.63 less than the median here. Across Michigan, the median is $37.00 at 61 hospitals.
Cash prices at 2 facilities across 2 cities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Dec 31, 2025 and Dec 31, 2025.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Flint, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Henry Ford Health lowest Grand Blanc Twp, MI FREE T4 | $29.40 | $70.00 | $7.35–$13.46 | 58% | — source file |
| McLaren Flint Flint, MI · (810) 342-2000 T4 Free Level | $78.65 | $157.30 | $4.93–$75.72 | 50% | Dec 31, 2025 source file |
Outpatient: lowest $29.40, median $54.03, highest $78.65 — a 2.7× difference within the same market.
As an inpatient, the same code is billed by 1 facility here, median $29.40. 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 0 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 free T4 test measures thyroxine that is not bound to proteins, the active form of the main thyroid hormone. It is usually ordered with or after a TSH test to check for an underactive or overactive thyroid and to adjust thyroid medicine.
What the price covers
The price usually covers the free T4 test only. The blood draw and the TSH test (84443) are billed separately.