Free T4 test cost in Grand Rapids, MI
In Grand Rapids-Wyoming-Kentwood, MI, 4 hospitals list a cash price for Free T4 (free thyroxine) thyroid blood test: from $27.00 to $37.00, with a median of $32.00. The lowest listed price is at Corewell Health Butterworth Hospital and 1 other hospital — $5.00 less than the median here. Across Michigan, the median is $37.00 at 61 hospitals.
Cash prices at 4 facilities across 4 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 — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Grand Rapids-Wyoming-Kentwood, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Corewell Health Butterworth Hospital lowest Grand Rapids, MI Hc Free T4 | $27.00 | $27.00 | — | — | — source file |
| Corewell Health Butterworth Hospital lowest Grand Rapids, MI Hc Free T4 | $27.00 | $27.00 | — | — | — source file |
| Corewell Health Blodgett Hospital lowest East Grand Rapids, MI Hc Free T4 | $27.00 | $27.00 | — | — | — source file |
| Corewell Health Zeeland Community Hospital Zeeland, MI Hc Free T4 | $37.00 | $37.00 | — | — | — source file |
| Corewell Health Greenville Hospital Greenville, MI Hc Free T4 | $37.00 | $37.00 | — | — | — source file |
Outpatient: lowest $27.00, median $32.00, highest $37.00 — a 1.4× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $37.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
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.