Free T4 test cost in Massachusetts
In Massachusetts, 19 hospitals publish a cash price for free T4 (free thyroxine) thyroid blood test: from $15.12 to $212.00, with a median of $43.62. The lowest price is at Boston Medical Center South (Brockton). The highest price is 14.0× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 84439. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Hospitals in Massachusetts, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Boston Medical Center South lowest Brockton · Boston-Cambridge-Newton, MA-NH HC Chg Assay of Free Thyroxine | $15.12 | $33.59 | — source file |
| Boston Medical Center Brighton Boston · Boston-Cambridge-Newton, MA-NH HC Chg Assay of Free Thyroxine | $17.20 | $38.22 | — source file |
| The Mercy Hospital Springfield · Springfield, MA HC Labcorp 224576 T4 (Thyroxine) Free | $17.55 | $27.00 | Mar 31, 2026 source file |
| Lowell General Hospital Lowell · Boston-Cambridge-Newton, MA-NH HC Assay of Free Thyroxine - T4 Free | $22.40 | $32.00 | — source file |
| Melrosewakefield Healthcare Melrose · Boston-Cambridge-Newton, MA-NH HC Assay of Free Thyroxine - T4 Free | $22.40 | $32.00 | — source file |
| Tufts Medical Center Boston · Boston-Cambridge-Newton, MA-NH HC Assay of Free Thyroxine - T4 Free | $22.40 | $32.00 | — source file |
| Brown University Health Morton Hospital Taunton · Providence-Warwick, RI-MA HC T4 FREE | $33.59 | $33.59 | — source file |
| Holyoke Medical Center Holyoke · Springfield, MA Assay Of Free Thyroxine | $41.00 | $41.00 | — source file |
| Boston Medical Center Boston · Boston-Cambridge-Newton, MA-NH HC Chg Assay of Free Thyroxine | $42.30 | $94.00 | — source file |
| Saint Anne's Hospital Fall River · Providence-Warwick, RI-MA HC T4 FREE | $43.62 | $43.62 | — source file |
| Cambridge Health Alliance Cambridge · Boston-Cambridge-Newton, MA-NH HC T4,Free | $45.00 | $45.00 | — source file |
| Shriners Childrens - Boston Boston · Boston-Cambridge-Newton, MA-NH ASSAY OF FREE THYROXINE | $87.40 | $87.40 | — source file |
| Milford Regional Medical Center Milford · Worcester, MA Assay of free thyroxine | $90.00 | $90.00 | — source file |
| Berkshire Medical Center Pittsfield · Pittsfield, MA Thyroxin Free (T4) Serum | $94.19 | $99.15 | Mar 25, 2026 source file |
| Fairview Hospital Great Barrington · Pittsfield, MA Thyroxin Free (T4) Serum | $94.19 | $99.15 | Mar 25, 2026 source file |
| North Adams Regional Hospital North Adams · Pittsfield, MA Thyroxin Free (T4) Serum | $94.19 | $99.15 | Mar 25, 2026 source file |
| UMass Memorial Health - Harrington Hospital Southbridge · Worcester, MA HC Thyroxine; Free | $113.00 | $113.00 | Apr 3, 2026 source file |
| HealthAlliance - Clinton Hospital Leominster · Worcester, MA HC Thyroxine; Free | $187.00 | $187.00 | Mar 26, 2026 source file |
| UMass Memorial Medical Center Worcester · Worcester, MA HC Thyroxine; Free | $212.00 | $212.00 | Mar 26, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Boston-Cambridge-Newton, MA-NH | 8 | $15.12 | $22.40 |
| Worcester, MA | 4 | $90.00 | $150.00 |
| Pittsfield, MA | 3 | $94.19 | $94.19 |
| Providence-Warwick, RI-MA | 2 | $33.59 | $38.60 |
| Springfield, MA | 2 | $17.55 | $29.28 |
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.
Free T4 (free thyroxine) thyroid blood test in other states
- Alabama$74.96
- Alaska$68.40
- Arizona$17.45
- Arkansas$48.10
- California$68.12
- Colorado$49.00
- Connecticut$55.55
- Delaware$157.92
- Florida$70.60
- Georgia$137.67
- Hawaii$44.40
- Idaho$40.00
- Illinois$82.08
- Indiana$72.25
- Iowa$61.18
- Kansas$109.75
- Kentucky$113.03
- Louisiana$37.66
- Maine$55.38
- Maryland$44.06
- Michigan$37.00
- Minnesota$65.27
- Mississippi$24.48
- Missouri$87.90
- Montana$51.20
- Nebraska$63.84
- Nevada$65.41
- New Hampshire$78.53
- New Jersey$10.37
- New Mexico$125.20
- New York$48.47
- North Carolina$78.40
- North Dakota$32.13
- Ohio$40.30
- Oklahoma$61.33
- Oregon$44.25
- Pennsylvania$63.90
- Puerto Rico$18.00
- Rhode Island$72.00
- South Carolina$105.00
- South Dakota$64.80
- Tennessee$27.50
- Texas$39.51
- Utah$84.43
- Vermont$114.00
- Virginia$57.00
- Washington$63.84
- West Virginia$45.75
- Wisconsin$70.85
- Wyoming$18.62
Median cash price across the state's hospitals.