Free T4 test cost in Michigan
In Michigan, 61 hospitals publish a cash price for free T4 (free thyroxine) thyroid blood test: from $10.40 to $402.00, with a median of $37.00. The lowest price is at University of Michigan Health (Ann Arbor). The highest price is 38.7× 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.
Lowest$10.40University of Michigan Health
Median$37.00half pay less
Highest$402.00in Michigan
Lowest saves$26.60vs the median
Hospitals in Michigan, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| University of Michigan Health lowest Ann Arbor · Ann Arbor, MI HC-Lab-T4 Free by Dialysis | $10.40 | $26.00 | — source file |
| Henry Ford Health Hospital Detroit · Detroit-Warren-Dearborn, MI HB LAB T4 FREE DIRECT DIALYSIS, SO | $12.45 | $11.55 | Jun 28, 2026 source file |
| Henry Ford Health West Bloomfield Hospital West Bloomfield · Detroit-Warren-Dearborn, MI HB LAB T4 FREE DIRECT DIALYSIS, SO | $12.45 | $11.55 | Jun 28, 2026 source file |
| Henry Ford Macomb Hospital Clinton Twp · Detroit-Warren-Dearborn, MI HB LAB THYROXINE TOTAL FREE | $12.45 | $60.00 | Jun 28, 2026 source file |
| Henry Ford Wyandotte Hospital Wyandotte · Detroit-Warren-Dearborn, MI HB LAB THYROXINE TOTAL FREE | $12.45 | $60.00 | Jun 28, 2026 source file |
| Henry Ford Health Rochester · Detroit-Warren-Dearborn, MI FREE T4 | $13.63 | $29.00 | — source file |
| Karmanos Cancer Center Detroit · Detroit-Warren-Dearborn, MI T4 FREE BY DIALYSIS | $18.85 | $37.70 | Dec 31, 2025 source file |
| Henry Ford Health East China Township · Detroit-Warren-Dearborn, MI THYROXINE; FREE T4 | $21.85 | $39.02 | — source file |
| Henry Ford Health Warren · Detroit-Warren-Dearborn, MI THYROXINE; FREE T4 | $24.08 | $43.00 | — source file |
| Kalkaska Memorial Health Center Kalkaska · Traverse City, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Munson Healthcare Cadillac Cadillac · Cadillac, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Munson Healthcare Charlevoix Hospital Charlevoix · Charlevoix, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Munson Healthcare Grayling Grayling · Grayling, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Munson Healthcare Manistee Hospital Manistee · Manistee, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Munson Healthcare Otsego Memorial Hospital Gaylord · Gaylord, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Munson Medical Center Traverse City · Traverse City, MI zzT4 (Thyroxine), Free, Dialysis, Serum | $24.29 | $28.57 | Apr 17, 2026 source file |
| Paul Oliver Memorial Hospital Frankfort · Traverse City, MI T4 Free Direct Dialysis | $24.29 | $28.57 | Apr 17, 2026 source file |
| Beaumont Hospital - Taylor Taylor · Detroit-Warren-Dearborn, MI Hc Free T4 By Dialysis Mayo | $26.00 | $26.00 | — source file |
| Corewell Health Trenton Hospital Trenton · Detroit-Warren-Dearborn, MI Hc Free T4 By Dialysis Mayo | $26.00 | $26.00 | — source file |
| Corewell Health Wayne Hospital Wayne · Detroit-Warren-Dearborn, MI Hc Free T4 By Dialysis Mayo | $26.00 | $26.00 | — source file |
| William Beaumont Hospital Grosse Pointe · Detroit-Warren-Dearborn, MI Hc Free T4 By Dialysis Mayo | $26.00 | $26.00 | — source file |
| William Beaumont Hospital Troy · Detroit-Warren-Dearborn, MI Hc Free T4 By Dialysis Mayo | $26.00 | $26.00 | — source file |
| Corewell Health Blodgett Hospital East Grand Rapids · Grand Rapids-Wyoming-Kentwood, MI Hc Free T4 | $27.00 | $27.00 | — source file |
| Corewell Health Butterworth Hospital Grand Rapids · Grand Rapids-Wyoming-Kentwood, MI Hc Free T4 | $27.00 | $27.00 | — source file |
| Henry Ford Health Grand Blanc Twp · Flint, MI FREE T4 | $29.40 | $70.00 | — source file |
| McLaren Thumb Region Bad Axe · Bad Axe, MI T4 Free Level | $30.50 | $61.00 | Dec 31, 2025 source file |
| McLaren Caro Region Caro · Caro, MI T4 Free Level | $32.35 | $64.70 | Dec 31, 2025 source file |
| Henry Ford Health Detroit · Detroit-Warren-Dearborn, MI THYROXINE FREE T4 | $36.96 | $66.00 | — source file |
| Corewell Health Big Rapids Hospital Big Rapids · Big Rapids, MI Hc Free T4 | $37.00 | $37.00 | — source file |
| Corewell Health Gerber Hospital Fremont · Fremont, MI Hc Free T4 | $37.00 | $37.00 | — source file |
| Corewell Health Greenville Hospital Greenville · Grand Rapids-Wyoming-Kentwood, MI Hc Free T4 | $37.00 | $37.00 | — source file |
| Corewell Health Ludington Hospital Ludington · Ludington, MI Hc Free T4 | $37.00 | $37.00 | — source file |
| Corewell Health Reed City Hospital Reed City · Reed City, MI Hc Free T4 | $37.00 | $37.00 | — source file |
| Corewell Health Zeeland Community Hospital Zeeland · Grand Rapids-Wyoming-Kentwood, MI Hc Free T4 | $37.00 | $37.00 | — source file |
| Holland Community Hospital Holland · Holland, MI Thyroxine (thyroid chemical), free | $42.00 | $70.00 | Sep 21, 2026 source file |
| Henry Ford Health Novi · Detroit-Warren-Dearborn, MI THYROXINE, FREE (FT-4) | $42.56 | $76.00 | — source file |
| Henry Ford Health Southfield · Detroit-Warren-Dearborn, MI THYROXINE, FREE (FT-4) | $42.56 | $76.00 | — source file |
| McLaren Port Huron Port Huron · Detroit-Warren-Dearborn, MI ASSAY OF FREE THYROXINE | $51.30 | $102.60 | Dec 31, 2025 source file |
| Beacon Allegan Allegan · Holland, MI T4 FREE | $57.09 | $116.50 | — source file |
| Aspirus Iron River Hospital Iron River · Iron River, MI ASSAY OF FREE THYROXINE | $70.85 | $109.00 | Apr 1, 2026 source file |
| Aspirus Ironwood Hospital Ironwood · Ironwood, MI ASSAY OF FREE THYROXINE | $70.85 | $109.00 | Apr 1, 2026 source file |
| Aspirus Keweenaw Hospital Laurium · Houghton, MI Fac Assay of Free Thyroxine | $70.85 | $109.00 | Apr 1, 2026 source file |
| McLaren Bay Region Bay City · Bay City, MI T4 Free Level | $77.90 | $155.80 | Dec 31, 2025 source file |
| McLaren Flint Flint · Flint, MI T4 Free Level | $78.65 | $157.30 | Dec 31, 2025 source file |
| McLaren Greater Lansing Lansing · Lansing-East Lansing, MI T4 Free Level | $78.65 | $157.30 | Dec 31, 2025 source file |
| McLaren Lapeer Region Lapeer · Detroit-Warren-Dearborn, MI T4 Free Level | $78.65 | $157.30 | Dec 31, 2025 source file |
| McLaren Macomb Mount Clemens · Detroit-Warren-Dearborn, MI T4 Free Level | $78.65 | $157.30 | Dec 31, 2025 source file |
| McLaren Northern Michigan Petoskey · Petoskey, MI T4 Free Level | $78.65 | $157.30 | Dec 31, 2025 source file |
| McLaren Oakland Pontiac · Detroit-Warren-Dearborn, MI T4 Free Level | $78.65 | $157.30 | Dec 31, 2025 source file |
| VHS Sinai Grace Hospital Detroit · Detroit-Warren-Dearborn, MI THYROXINE FREE | $78.75 | $105.00 | Apr 8, 2026 source file |
| McLaren Central Michigan Mount Pleasant · Mount Pleasant, MI T4 Free Level | $79.05 | $158.10 | Dec 31, 2025 source file |
| Three Rivers Health Three Rivers · Sturgis, MI T4 Thyroxine Free, Dialysis Mass Spectrometry | $83.20 | $128.00 | Jan 1, 2026 source file |
| Harbor Beach Community Hospital Harbor Beach · Harbor Beach, MI THYROXINE FREE T4 (SO) | $90.00 | $120.00 | — source file |
| Corewell Health Watervliet Hospital Watervliet · Niles, MI Hc Free T4 | $97.00 | $97.00 | — source file |
| Lakeland Hospital, St Joseph St Joseph · Niles, MI Hc Free T4 | $97.00 | $97.00 | — source file |
| Helen Newberry Joy Hospital Newberry · Newberry, MI Thyroxine (thyroid chemical), free | $105.21 | $167.00 | Sep 2, 2026 source file |
| VHS Childrens Hospital of Michigan Detroit · Detroit-Warren-Dearborn, MI FREE THYROXINE INDEX | $134.25 | $179.00 | Apr 6, 2026 source file |
| VHS Detroit Receiving Hospital Detroit · Detroit-Warren-Dearborn, MI THYROXINE FREE | $246.75 | $329.00 | Apr 7, 2026 source file |
| VHS Rehabilitation Institute of Michigan Detroit · Detroit-Warren-Dearborn, MI THYROXINE FREE | $290.25 | $387.00 | Apr 8, 2026 source file |
| VHS Huron Valley-Sinai Hospital Commerce Charter Twp · Detroit-Warren-Dearborn, MI THYROXINE FREE | $343.50 | $458.00 | May 20, 2026 source file |
| Harper University Hospital Detroit · Detroit-Warren-Dearborn, MI THYROXINE FREE | $402.00 | $536.00 | Aug 20, 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 |
|---|---|---|---|
| Detroit-Warren-Dearborn, MI | 26 | $12.45 | $31.48 |
| Grand Rapids-Wyoming-Kentwood, MI | 4 | $27.00 | $32.00 |
| Traverse City, MI | 3 | $24.29 | $24.29 |
| Flint, MI | 2 | $29.40 | $54.02 |
| Holland, MI | 2 | $42.00 | $49.54 |
| Niles, MI | 2 | $97.00 | $97.00 |
| Ann Arbor, MI | 1 | $10.40 | $10.40 |
| Bad Axe, MI | 1 | $30.50 | $30.50 |
| Bay City, MI | 1 | $77.90 | $77.90 |
| Big Rapids, MI | 1 | $37.00 | $37.00 |
| Caro, MI | 1 | $32.35 | $32.35 |
| Charlevoix, MI | 1 | $24.29 | $24.29 |
| Cadillac, MI | 1 | $24.29 | $24.29 |
| Fremont, MI | 1 | $37.00 | $37.00 |
| Gaylord, MI | 1 | $24.29 | $24.29 |
| Grayling, MI | 1 | $24.29 | $24.29 |
| Harbor Beach, MI | 1 | $90.00 | $90.00 |
| Houghton, MI | 1 | $70.85 | $70.85 |
| Iron River, MI | 1 | $70.85 | $70.85 |
| Ironwood, MI | 1 | $70.85 | $70.85 |
| Lansing-East Lansing, MI | 1 | $78.65 | $78.65 |
| Ludington, MI | 1 | $37.00 | $37.00 |
| Manistee, MI | 1 | $24.29 | $24.29 |
| Mount Pleasant, MI | 1 | $79.05 | $79.05 |
| Newberry, MI | 1 | $105.21 | $105.21 |
| Petoskey, MI | 1 | $78.65 | $78.65 |
| Reed City, MI | 1 | $37.00 | $37.00 |
| Sturgis, MI | 1 | $83.20 | $83.20 |
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
- Massachusetts$43.62
- 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.