Free T4 test cost in Dallas, TX — inpatient
In Dallas-Fort Worth-Arlington, TX, 41 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $12.75 to $284.70, with a median of $214.00. The lowest listed price is at The University of Texas Southwestern Medical Center at Dallas — $201.25 less than the median here. Across Texas, the median is $39.51 at 101 hospitals.
Cash prices at 41 facilities across 22 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 10, 2026 and Jun 29, 2026.
Lowest$12.75The University of Texas Southwestern Medical Center at Dallas
Median$214.00half pay less
Highest$284.70in this market
Difference22.3×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Dallas-Fort Worth-Arlington, TX.
median
Lowest $12.75Highest $296.10
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| The University of Texas Southwestern Medical Center at Dallas lowest Dallas, TX · (214) 633-5555 ASSAY OF FREE THYROXINE | $12.75 | $17.00 | $5.00–$31.45 | 25% | Mar 10, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX · (214) 633-5555 T4 FREE | $26.25 | $35.00 | $5.00–$31.50 | 25% | Mar 10, 2026 source file |
| Baylor University Medical Center Dallas, TX · (214) 820-8082 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $19.80–$7,411.00 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - McKinney McKinney, TX · (469) 742-2200 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco, TX · (945) 339-0500 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Plano Plano, TX · (469) 814-3278 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center at Waxahachie Waxahachie, TX · (972) 923-7000 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - McKinney McKinney, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Denton Denton, TX · (940) 220-0600 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth, TX · (817) 926-2544 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Plano Plano, TX · (469) 814-2000 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Grapevine Grapevine, TX · (817) 481-1588 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Irving Irving, TX · (972) 579-8100 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Centennial Frisco, TX · (972) 963-3333 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Lake Pointe Rowlett, TX · (972) 412-2273 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas, TX · (214) 820-0600 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Plano Plano, TX · (469) 814-2000 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Denton Denton, TX · (940) 220-0600 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco, TX · (945) 339-0500 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Centennial Frisco, TX · (972) 963-3333 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - McKinney McKinney, TX · (469) 742-2200 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - McKinney McKinney, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Plano Plano, TX · (469) 814-3278 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Grapevine Grapevine, TX · (817) 481-1588 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Lake Pointe Rowlett, TX · (972) 412-2273 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor University Medical Center Dallas, TX · (214) 820-8082 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $24.30–$7,411.00 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas, TX · (214) 820-0600 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center at Waxahachie Waxahachie, TX · (972) 923-7000 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Irving Irving, TX · (972) 579-8100 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth, TX · (817) 926-2544 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 29, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX · (214) 633-5555 FREE T4 ESTIMATE | $47.25 | $63.00 | $5.00–$56.70 | 25% | Mar 10, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX · (214) 633-5555 HCHG THYROXINE (T-4) FREE | $68.50 | $137.00 | $49.42–$120.56 | 50% | Mar 10, 2026 source file |
| Reunion Rehabilitation Hospital Arlington Arlington, TX Assay of thyroid (t4) | $103.02 | $103.02 | — | — | Apr 1, 2026 source file |
| Reunion Rehabilitation Hospital Plano Plano, TX Assay of thyroid (t4) | $103.02 | $103.02 | — | — | Apr 1, 2026 source file |
| Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth, TX · (817) 926-2544 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Lake Pointe Rowlett, TX · (972) 412-2273 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Lake Pointe Rowlett, TX · (972) 412-2273 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Lake Pointe Rowlett, TX · (972) 412-2273 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Denton Denton, TX · (940) 220-0600 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Denton Denton, TX · (940) 220-0600 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Denton Denton, TX · (940) 220-0600 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - McKinney McKinney, TX HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - McKinney McKinney, TX HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - McKinney McKinney, TX HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas, TX · (214) 820-0600 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas, TX · (214) 820-0600 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas, TX · (214) 820-0600 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth, TX · (817) 926-2544 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth, TX · (817) 926-2544 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco, TX · (945) 339-0500 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco, TX · (945) 339-0500 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco, TX · (945) 339-0500 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - McKinney McKinney, TX · (469) 742-2200 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - McKinney McKinney, TX · (469) 742-2200 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - McKinney McKinney, TX · (469) 742-2200 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Grapevine Grapevine, TX · (817) 481-1588 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Grapevine Grapevine, TX · (817) 481-1588 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Grapevine Grapevine, TX · (817) 481-1588 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor University Medical Center Dallas, TX · (214) 820-8082 HC THYROXINE - FREE | $128.73 | $214.55 | $77.24–$7,411.00 | 40% | Jun 29, 2026 source file |
| Baylor University Medical Center Dallas, TX · (214) 820-8082 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $77.24–$7,411.00 | 40% | Jun 29, 2026 source file |
| Baylor University Medical Center Dallas, TX · (214) 820-8082 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $77.24–$7,411.00 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center at Waxahachie Waxahachie, TX · (972) 923-7000 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center at Waxahachie Waxahachie, TX · (972) 923-7000 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center at Waxahachie Waxahachie, TX · (972) 923-7000 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie, TX HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie, TX HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie, TX HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Plano Plano, TX · (469) 814-2000 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Plano Plano, TX · (469) 814-2000 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Plano Plano, TX · (469) 814-2000 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Irving Irving, TX · (972) 579-8100 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Irving Irving, TX · (972) 579-8100 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Irving Irving, TX · (972) 579-8100 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Plano Plano, TX · (469) 814-3278 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Plano Plano, TX · (469) 814-3278 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Plano Plano, TX · (469) 814-3278 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Centennial Frisco, TX · (972) 963-3333 HC THYROXINE - FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Centennial Frisco, TX · (972) 963-3333 HC THYROXINE (T4), FREE | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Centennial Frisco, TX · (972) 963-3333 HC THYROXINE (T4), FREE BY DIALYSIS | $128.73 | $214.55 | $118.00–$150.19 | 40% | Jun 29, 2026 source file |
| Baylor Scott and White Medical Center Uptown Dallas, TX · (214) 443-3000 Thyroxine Free | $150.60 | $251.00 | $0.47–$8,427.00 | 40% | Apr 14, 2026 source file |
| Baylor Scott and White Medical Center Uptown Dallas, TX · (214) 443-3000 Throxine Free | $152.40 | $254.00 | $0.47–$8,427.00 | 40% | Apr 14, 2026 source file |
| Baylor Scott and White Medical Center Sunnyvale Sunnyvale, TX · (972) 892-3000 Thyroxine Free | $213.00 | $355.00 | $57.53–$121.61 | 40% | Apr 1, 2026 source file |
| Baylor Scott and White Medical Center Sunnyvale Sunnyvale, TX · (972) 892-3000 Throxine Free | $213.00 | $355.00 | $57.53–$121.61 | 40% | Apr 1, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX · (682) 341-5000 HC T4 FREE BY DIALYSIS - ARUP | $214.00 | $214.00 | — | — | Apr 1, 2026 source file |
| Texas Health Huguley Hospital Fort Worth South Burleson, TX HC T4 FREE BY DIALYSIS - ARUP | $214.00 | $214.00 | — | — | Apr 1, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX · (682) 341-5000 HC T4 FREE | $246.99 | $246.99 | — | — | Apr 1, 2026 source file |
| Texas Health Huguley Hospital Fort Worth South Burleson, TX HC T4 FREE - THYROXINE FREE | $246.99 | $246.99 | — | — | Apr 1, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX · (682) 341-5000 HC T4 FREE - THYROXINE FREE | $246.99 | $246.99 | — | — | Apr 1, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX · (682) 341-5000 HC T4 FREE REFLEX FROM TSH CASCADE | $246.99 | $246.99 | — | — | Apr 1, 2026 source file |
| Texas Health Presbyterian Hospital Denton Denton, TX · (940) 898-7000 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Plano Plano, TX · (972) 981-8000 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Southlake Southlake, TX · (817) 748-8700 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Southwest Fort Worth Fort Worth, TX · (817) 433-5000 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Specialty Hospital Fort Worth Fort Worth, TX · (817) 250-2100 THYROXINE FREE (FT4) | $284.70 | $474.50 | $177.94–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital HurstEulessBedford Bedford, TX THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Kaufman Kaufman, TX · (972) 932-7200 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$455.52 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Rockwall Rockwall, TX · (469) 698-1000 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Arlington Memorial Hospital Arlington, TX · (817) 548-6200 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Hospital Frisco Frisco, TX · (469) 495-2000 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Azle Azle, TX · (817) 444-8700 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Physicians Medical Center Plano, TX THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Cleburne Cleburne, TX · (817) 641-2251 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$455.52 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Flower Mound Flower Mound, TX · (972) 419-1530 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Dallas Dallas, TX · (214) 345-6789 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Fort Worth Fort Worth, TX · (817) 250-2100 THYROXINE FREE (FT4) | $284.70 | $474.50 | $180.78–$446.50 | 40% | Apr 21, 2026 source file |
| AMH Cath Labs Arlington, TX THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Allen Allen, TX · (972) 747-1000 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Alliance Fort Worth, TX · (682) 212-2004 THYROXINE FREE (FT4) | $284.70 | $474.50 | $223.02–$446.50 | 40% | Apr 21, 2026 source file |
| Texas Health Hospital Frisco Frisco, TX · (469) 495-2000 T4 FREE CASCADE | $296.10 | $493.50 | $231.95–$464.38 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital HurstEulessBedford Bedford, TX T4 FREE CASCADE | $296.10 | $493.50 | $231.95–$464.38 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Southlake Southlake, TX · (817) 748-8700 T4 FREE CASCADE | $296.10 | $493.50 | $231.95–$464.38 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Alliance Fort Worth, TX · (682) 212-2004 T4 FREE CASCADE | $296.10 | $493.50 | $231.95–$464.38 | 40% | Apr 21, 2026 source file |
Inpatient: lowest $12.75, median $214.00, highest $284.70 — a 22.3× difference within the same market.
As an outpatient, the same code is billed by 42 facilities here, median $213.50 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 36 of 37 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. 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.