Total T4 test cost in Allentown, PA
In Allentown-Bethlehem-Easton, PA-NJ, 9 hospitals list a cash price for total thyroxine (T4) blood test: from $7.90 to $200.70, with a median of $104.58. The lowest listed price is at Hackettstown Medical Center — $96.68 less than the median here. Across Pennsylvania, the median is $45.00 at 95 hospitals.
Cash prices at 9 facilities across 6 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 26, 2026 and Feb 27, 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 Allentown-Bethlehem-Easton, PA-NJ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Hackettstown Medical Center lowest Hackettstown, NJ · (908) 852-5100 Thyroxine Total source file | $7.90 | $202.00 | — | 96% |
| St Luke's Hospital - Allentown Campus Allentown, PA HB ASSAY OF TOTAL THYROXINE File of Feb 26, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| St Luke's Hospital - Lehighton Campus Lehighton, PA HB ASSAY OF TOTAL THYROXINE File of Feb 27, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| St Luke's Hospital - Bethlehem Campus Bethlehem, PA · (484) 526-4000 HB ASSAY OF TOTAL THYROXINE File of Feb 26, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| St Luke's Hospital - Easton Campus Easton, PA · (610) 250-4076 HB ASSAY OF TOTAL THYROXINE File of Feb 26, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| St Luke's Hospital - Anderson Campus Easton, PA HB ASSAY OF TOTAL THYROXINE File of Feb 26, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| St Luke's Hospital - Carbon Campus Lehighton, PA · (610) 377-7001 HB ASSAY OF TOTAL THYROXINE File of Feb 27, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| St Luke's Hospital - Sacred Heart Campus Allentown, PA HB ASSAY OF TOTAL THYROXINE File of Feb 26, 2026 · source file | $104.58 | $126.00 | $6.87–$52.70 | 17% |
| Hackettstown Medical Center Hackettstown, NJ · (908) 852-5100 Thyroxine Total source file | $163.55 | $3,771.00 | — | 96% |
| St Luke's Warren Hospital Phillipsburg, NJ · (908) 847-6700 HB ASSAY OF TOTAL THYROXINE File of Feb 27, 2026 · source file | $200.70 | $223.00 | $6.87–$62.69 | 10% |
Outpatient: lowest $7.90, median $104.58, highest $200.70 — a 25.4× difference within the same market.
As an inpatient, the same code is billed by 9 facilities here, median $104.58. 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 0 of 8 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 total T4 test measures all the thyroxine hormone in the blood, both bound and free. Most doctors now order free T4 (84439) instead, which is less affected by pregnancy and medicines.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.