Free T4 test cost in Cincinnati, OH
In Cincinnati, OH-KY-IN, 15 hospitals list a cash price for Free T4 (free thyroxine) thyroid blood test: from $16.91 to $94.00, with a median of $27.74. The lowest listed price is at Bethesda Hospital Inc. — $10.83 less than the median here. Across Ohio, the median is $40.30 at 100 hospitals.
Cash prices at 15 facilities across 9 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 Apr 1, 2026 and Jul 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 Cincinnati, OH-KY-IN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Bethesda Hospital Inc. lowest Cincinnati, OH HC Free T4 | $16.91 | $22.55 | — | 25% | Apr 1, 2026 source file |
| Mercy Health Anderson Hospital LLC Cincinnati, OH HC So T4 Free | $27.60 | $46.00 | — | 40% | — source file |
| Mercy Health West Hospital LLC Cincinnati, OH HC So T4 Free | $27.60 | $46.00 | — | 40% | — source file |
| Mercy Health Kings Mills Hospital LLC Mason, OH HC So T4 Free | $27.60 | $46.00 | — | 40% | — source file |
| Mercy Health Clermont Hospital LLC Batavia, OH HC So T4 Free | $27.60 | $46.00 | — | 40% | — source file |
| Jewish Hospital LLC Cincinnati, OH HC So T4 Free | $27.60 | $46.00 | — | 40% | — source file |
| Mercy Health Fairfield Hospital LLC Fairfield, OH HC So T4 Free | $27.60 | $46.00 | — | 40% | — source file |
| McCullough-Hyde Memorial Hospital, Inc. Oxford, OH HC Free T4 | $27.74 | $36.98 | — | 25% | Apr 1, 2026 source file |
| The Good Samaritan Hospital of Cincinnati, OH Cincinnati, OH HC Free T4 | $30.81 | $41.08 | — | 25% | Apr 1, 2026 source file |
| West Chester Hospital, LLC West Chester, OH Hc T4 - Free | $74.40 | $124.00 | — | 40% | Jul 1, 2026 source file |
| University of Cincinnati Medical Center, LLC Cincinnati, OH Hc T4 - Free | $74.40 | $124.00 | — | 40% | Jul 1, 2026 source file |
| Mercy Health Anderson Hospital LLC Cincinnati, OH HC Assay of Free Thyroxine | $76.80 | $128.00 | — | 40% | — source file |
| Mercy Health Clermont Hospital LLC Batavia, OH HC Assay of Free Thyroxine | $76.80 | $128.00 | — | 40% | — source file |
| Mercy Health Kings Mills Hospital LLC Mason, OH HC Assay of Free Thyroxine | $76.80 | $128.00 | — | 40% | — source file |
| Jewish Hospital LLC Cincinnati, OH HC Assay of Free Thyroxine | $76.80 | $128.00 | — | 40% | — source file |
| Mercy Health West Hospital LLC Cincinnati, OH HC Assay of Free Thyroxine | $76.80 | $128.00 | — | 40% | — source file |
| Children's Hospital Medical Center Cincinnati, OH Hb Thyroxine, Free (Free T4) | $92.82 | $182.00 | $9.02–$182.00 | 49% | — source file |
| Kettering Medical Center Kettering, OH Hc Free T4 | $94.00 | $235.00 | — | 60% | Apr 1, 2026 source file |
| Fort Hamilton Hospital Hamilton, OH Hc Free T4 | $94.00 | $235.00 | — | 60% | Apr 1, 2026 source file |
| Kettering Medical Center Miamisburg, OH Hc Free T4 | $94.00 | $235.00 | — | 60% | Apr 1, 2026 source file |
| Kettering Medical Center Miamisburg, OH Hc Thyroxine, Free T4 Dialysis Mass Spec, Lc | $259.20 | $648.00 | — | 60% | Apr 1, 2026 source file |
| Kettering Medical Center Kettering, OH Hc Thyroxine, Free T4 Dialysis Mass Spec, Lc | $259.20 | $648.00 | — | 60% | Apr 1, 2026 source file |
| Fort Hamilton Hospital Hamilton, OH Hc Thyroxine, Free T4 Dialysis Mass Spec, Lc | $259.20 | $648.00 | — | 60% | Apr 1, 2026 source file |
| Children's Hospital Medical Center Cincinnati, OH Hb T4 Free By Dialysis | $259.59 | $509.00 | $9.02–$509.00 | 49% | — source file |
Outpatient: lowest $16.91, median $27.74, highest $94.00 — a 5.6× difference within the same market.
As an inpatient, the same code is billed by 13 facilities here, median $27.74. 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 the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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.