Free T4 test cost in Iowa
In Iowa, 37 hospitals publish a cash price for free T4 (free thyroxine) thyroid blood test: from $12.80 to $202.15, with a median of $61.18. The lowest price is at Buena Vista Regional Medical Center (Storm Lake). The highest price is 15.8× 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$12.80Buena Vista Regional Medical Center
Median$61.18half pay less
Highest$202.15in Iowa
Lowest saves$48.38vs the median
Hospitals in Iowa, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Buena Vista Regional Medical Center lowest Storm Lake · Storm Lake, IA ASSAY OF FREE THYROXINE | $12.80 | $16.00 | — source file |
| Alegent Health - Mercy Hospital, Corning Iowa Corning · Corning, IA HC RHC T4 FREE | $12.96 | $27.00 | Feb 28, 2026 source file |
| Alegent Health Community Memorial Hospital of Missouri Valley, Iowa Missouri Valley · Omaha, NE-IA HC RHC T4 FREE | $13.23 | $27.00 | Feb 28, 2026 source file |
| Allen Hospital Waterloo · Waterloo-Cedar Falls, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| Grinnell Regional Medical Center Grinnell · Grinnell, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| St Luke's Methodist Hospital Cedar Rapids · Cedar Rapids, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| St Luke'sJones Regional Medical Center Anamosa · Cedar Rapids, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| St Lukes Regional Medical Center Sioux City · Sioux City, IA-NE-SD ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| The Finley Hospital Dubuque · Dubuque, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| Trinity Medical Center Bettendorf · Davenport-Moline-Rock Island, IA-IL ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| Trinity Regional Medical Center Fort Dodge · Fort Dodge, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| Unity Healthcare Muscatine · Muscatine, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| UnityPoint Health - Des Moines Iowa Methodist Medical Des Moines · Des Moines-West Des Moines, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| UnityPoint Health Marshalltown Marshalltown · Marshalltown, IA ASSAY OF FREE THYROXINE | $22.40 | $28.00 | Jan 28, 2026 source file |
| Jennie Edmundson Memorial Hospital Council Bluffs · Omaha, NE-IA T4 Free by Dialysis | $29.70 | $99.00 | Feb 15, 2026 source file |
| MercyOne Genesis DeWitt Medical Center Dewitt · Clinton, IA _T4F - Sendout | $31.20 | $52.00 | Mar 31, 2026 source file |
| MercyOne Genesis Davenport West Medical Center Davenport · Davenport-Moline-Rock Island, IA-IL Thyroxine Free | $39.00 | $65.00 | Mar 31, 2026 source file |
| MercyOne Genesis Davenport Medical Center Davenport · Davenport-Moline-Rock Island, IA-IL Thyroxine Free | $43.80 | $73.00 | Mar 31, 2026 source file |
| Gundersen Palmer Lutheran Hospital and Clinic West Union · West Union, IA THYROXINE; FREE (FT4) | $61.18 | $103.00 | Jun 27, 2026 source file |
| CHI Health Mercy Council Bluffs Council Bluffs · Omaha, NE-IA HC T4 FREE | $63.84 | $152.00 | Feb 28, 2026 source file |
| Winneshiek Medical Center Decorah · Decorah, IA Thyroxine (thyroid chemical), free | $72.10 | $103.00 | Jul 17, 2026 source file |
| MercyOne Waterloo Medical Center Waterloo · Waterloo-Cedar Falls, IA HC Warde T4 (Thyroxine) Free | $74.10 | $114.00 | Mar 31, 2026 source file |
| Sartori Memorial Hospital Cedar Falls · Waterloo-Cedar Falls, IA HC T4 (Thyroxine) Free | $74.10 | $114.00 | Mar 31, 2026 source file |
| Avera Holy Family Hospital Estherville · Estherville, IA | $74.69 | $77.00 | — source file |
| Mercy Medical Center - Dubuque Dubuque · Dubuque, IA HC T4 (Thyroxine) Free | $77.35 | $119.00 | Mar 31, 2026 source file |
| Central Community Hospital Elkader · Elkader, IA HC T4 (Thyroxine) Free | $78.65 | $121.00 | Mar 31, 2026 source file |
| Mercy Medical Center - Dyersville Dyersville · Dubuque, IA HC T4 (Thyroxine) Free | $78.65 | $121.00 | Mar 31, 2026 source file |
| Mercy Medical Center - New Hampton New Hampton · New Hampton, IA HC T4 (Thyroxine) Free | $78.65 | $121.00 | Mar 31, 2026 source file |
| Mercy Medical Center - Newton Newton · Des Moines-West Des Moines, IA HC T4 (Thyroxine) Free | $78.65 | $121.00 | Mar 31, 2026 source file |
| MercyOne Oelwein Medical Center Oelwein · Oelwein, IA HC T4 (Thyroxine) Free | $78.65 | $121.00 | Mar 31, 2026 source file |
| MercyOne Clinton Medical Center Clinton · Clinton, IA HC T4 (Thyroxine) Free | $89.05 | $137.00 | Mar 31, 2026 source file |
| Sanford Sheldon Medical Center Sheldon · Sheldon, IA ASSAY OF FREE THYROXINE 84439 | $92.80 | $116.00 | Mar 4, 2026 source file |
| MercyOne North Iowa Medical Center Mason City · Mason City, IA HC T4 (Thyroxine) Free | $96.20 | $148.00 | Mar 31, 2026 source file |
| Avera Merrill Pioneer Rock Rapids · Rock Rapids, IA | $98.94 | $102.00 | — source file |
| Catholic Health Initiatives-Iowa West Des Moines · Des Moines-West Des Moines, IA HC Warde T4 (Thyroxine) Free | $111.00 | $111.00 | Mar 31, 2026 source file |
| St. Joseph's Mercy Hospital, Centerville Centerville · Centerville, IA HC T4 (Thyroxine) Free | $121.00 | $121.00 | Mar 31, 2026 source file |
| MercyOne Des Moines Medical Center Des Moines · Des Moines-West Des Moines, IA HC T4 (Thyroxine) Free | $202.15 | $311.00 | Mar 31, 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 |
|---|---|---|---|
| Des Moines-West Des Moines, IA | 4 | $22.40 | $94.82 |
| Davenport-Moline-Rock Island, IA-IL | 3 | $22.40 | $39.00 |
| Dubuque, IA | 3 | $22.40 | $77.35 |
| Omaha, NE-IA | 3 | $13.23 | $29.70 |
| Waterloo-Cedar Falls, IA | 3 | $22.40 | $74.10 |
| Clinton, IA | 2 | $31.20 | $60.12 |
| Cedar Rapids, IA | 1 | $22.40 | $22.40 |
| Centerville, IA | 1 | $121.00 | $121.00 |
| Corning, IA | 1 | $12.96 | $12.96 |
| Cedar Rapids, IA | 1 | $22.40 | $22.40 |
| Decorah, IA | 1 | $72.10 | $72.10 |
| Elkader, IA | 1 | $78.65 | $78.65 |
| Estherville, IA | 1 | $74.69 | $74.69 |
| Fort Dodge, IA | 1 | $22.40 | $22.40 |
| Grinnell, IA | 1 | $22.40 | $22.40 |
| Marshalltown, IA | 1 | $22.40 | $22.40 |
| Mason City, IA | 1 | $96.20 | $96.20 |
| Muscatine, IA | 1 | $22.40 | $22.40 |
| New Hampton, IA | 1 | $78.65 | $78.65 |
| Oelwein, IA | 1 | $78.65 | $78.65 |
| Rock Rapids, IA | 1 | $98.94 | $98.94 |
| Sheldon, IA | 1 | $92.80 | $92.80 |
| Sioux City, IA-NE-SD | 1 | $22.40 | $22.40 |
| Storm Lake, IA | 1 | $12.80 | $12.80 |
| West Union, IA | 1 | $61.18 | $61.18 |
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
- Kansas$109.75
- Kentucky$113.03
- Louisiana$37.66
- Maine$55.38
- Maryland$44.06
- Massachusetts$43.62
- 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.