Free T4 test cost in Philadelphia, PA
In Philadelphia-Camden-Wilmington, PA-NJ-DE-MD, 22 hospitals list a cash price for Free T4 (free thyroxine) thyroid blood test: from $9.00 to $571.90, with a median of $52.15. The lowest listed price is at Roxborough Memorial Hospital and 1 other hospital — $43.15 less than the median here. Across Pennsylvania, the median is $63.90 at 64 hospitals.
Cash prices at 22 facilities across 19 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 Mar 24, 2026 and Sep 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 Philadelphia-Camden-Wilmington, PA-NJ-DE-MD.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Roxborough Memorial Hospital lowest East Norriton, PA Hc Assay Of Free Thyroxine | $9.00 | $443.75 | $7.22–$430.44 | 98% | Sep 1, 2026 source file |
| Lower Bucks Hospital lowest Bristol, PA Hc Assay Of Free Thyroxine | $9.00 | $355.00 | $7.22–$284.00 | 97% | Sep 1, 2026 source file |
| Roxborough Memorial Hospital lowest East Norriton, PA Hc Assay Of Free Thyroxine | $9.00 | $443.75 | $7.22–$430.44 | 98% | Sep 1, 2026 source file |
| Virtua_West_Jersey_Health_System_Inc Voorhees, NJ HC T4 Free Thyroxine | $18.30 | $183.00 | $8.66–$111.58 | 90% | — source file |
| Virtua_Willingboro_Hospital_Inc Willinboro, NJ HC T4 Free Thyroxine | $18.30 | $183.00 | $8.66–$111.58 | 90% | — source file |
| Virtua_West_Jersey_Health_System_Inc Voorhees, NJ HC T4 Free Thyroxine | $18.30 | $183.00 | $8.66–$111.58 | 90% | — source file |
| Virtua_Memorial_Hospital_Inc | Mount Holly, NJ HC T4 Free Thyroxine | $18.30 | $183.00 | $8.66–$111.58 | 90% | — source file |
| Virtua_Our_Lady_of_Lourdes_Inc Camden, NJ HC T4 Free Thyroxine | $18.30 | $183.00 | $8.66–$111.58 | 90% | — source file |
| Inspira Health Center Woodbury Woodbury, NJ .T4F 001975 | $29.65 | $29.65 | $5.67–$41.47 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ .T4F 001975 | $29.65 | $29.65 | $6.00–$41.47 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ .T4F 001975 | $29.65 | $29.65 | $5.00–$41.47 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ .T4F 001975 | $29.65 | $29.65 | $6.00–$41.47 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ T4 FREE | $30.51 | $30.51 | $5.14–$41.47 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ T4 FREE | $30.51 | $30.51 | $6.17–$41.47 | — | Mar 24, 2026 source file |
| Inspira Health Center Woodbury Woodbury, NJ T4 FREE | $30.51 | $30.51 | $5.84–$41.47 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ T4 FREE | $30.51 | $30.51 | $6.17–$41.47 | — | Mar 24, 2026 source file |
| Nemours Children's Hospital Wilmington, DE Free T4, Dialysis Method | $38.00 | $38.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE Free T4, Dialysis Method | $38.00 | $38.00 | — | — | — source file |
| St Mary Medical Center Langhorne, PA HC T4 (Thyroxine) Free | $66.30 | $102.00 | $9.02–$120.14 | 35% | Mar 31, 2026 source file |
| St Mary Medical Center Langhorne, PA HC Quest T4 (Thyroxine) Direct Dialysis | $66.30 | $102.00 | $9.02–$120.14 | 35% | Mar 31, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA Hc T4 Free/Direct Dial | $78.00 | $195.00 | — | 60% | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc T4 Free/Direct Dial | $78.00 | $195.00 | — | 60% | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Free T4-Thyroxine | $78.00 | $195.00 | — | 60% | — source file |
| Lankenau Medical Center Wynnewood, PA Hc T4 Free/Direct Dial | $78.00 | $195.00 | — | 60% | Apr 1, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA Hc Free T4-Thyroxine | $78.00 | $195.00 | — | 60% | — source file |
| Lankenau Medical Center Wynnewood, PA Hc Free T4-Thyroxine | $78.00 | $195.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA Hc T4 Free/Direct Dial | $78.00 | $195.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA Hc Free T4-Thyroxine | $78.00 | $195.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA Hc T4 Free/Direct Dial | $78.00 | $195.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA Hc Free T4-Thyroxine | $78.00 | $195.00 | — | 60% | Apr 1, 2026 source file |
| Shriners Childrens - Philadelphia Philadelphia, PA THYROXINE (THYROID CHEMICAL); FREE | $79.70 | $79.70 | $7.92–$18.67 | — | — source file |
| Nazareth Hospital Philadelphia, PA HC Quest T4 (Thyroxine) Direct Dialysis | $155.35 | $239.00 | $9.02–$473.55 | 35% | Mar 31, 2026 source file |
| Nazareth Hospital Philadelphia, PA HC T4 (Thyroxine) Free | $155.35 | $239.00 | $9.02–$473.55 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA HC Warde T4 (Thyroxine) Free | $155.35 | $239.00 | $9.00–$239.00 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA HC T4 (Thyroxine) Free | $155.35 | $239.00 | $9.00–$239.00 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA HC Quest T4 (Thyroxine) Direct Dialysis | $155.35 | $239.00 | $9.00–$239.00 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Inc Wilmington, DE HC Quest T4 (Thyroxine) Direct Dialysis | $215.15 | $331.00 | $8.84–$317.76 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Inc Wilmington, DE HC T4 (Thyroxine) Free | $226.85 | $349.00 | $8.84–$335.04 | 35% | Mar 31, 2026 source file |
| Nemours Children's Hospital Wilmington, DE Thyroxine Free (Inc T4 Total) | $368.00 | $368.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE Thyroxine Free (Inc T4 Total) | $368.00 | $368.00 | — | — | — source file |
| Children's Hospital of Philadelphia, The Philadelphia, PA Free T4-Thyroxine | $571.90 | $571.90 | $10.80–$514.71 | — | — source file |
Outpatient: lowest $9.00, median $52.15, highest $571.90 — a 63.5× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $78.00. 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 14 of 16 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.