Total T4 test cost in New York, NY — inpatient
In New York-Newark-Jersey City, NY-NJ, 34 hospitals list a cash price for total thyroxine (T4) blood test as an inpatient: from $5.76 to $349.00, with a median of $15.11. The lowest listed price is at Interfaith Medical Center and 2 other hospitals — $9.35 less than the median here. Across New York, the median is $26.68 at 112 hospitals.
Cash prices at 34 facilities across 22 cities for code 84436, as an inpatient (admitted to hospital) . Collected Oct 4, 2026; the hospital files themselves were last updated between Jul 1, 2024 and Aug 13, 2026.
Lowest$5.76Interfaith Medical Center + 2 more
Median$15.11half of hospitals charge less
Highest$349.00in this market
Difference60.6×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 New York-Newark-Jersey City, NY-NJ.
median
Lowest $5.76Highest $760.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Interfaith Medical Center lowest Brooklyn, NY HC T4 THYROXINE TOTAL File of Aug 1, 2026 · source file | $5.76 | $17.00 | $5.76–$12.95 | 66% |
| Brookdale Hospital Medical Center lowest Brooklyn, NY · (718) 240-5966 HC T4 THYROXINE TOTAL File of Aug 1, 2026 · source file | $5.76 | $17.00 | $5.76–$12.95 | 66% |
| Kingsbrook Jewish Medical Center lowest Brooklyn, NY HC T4 THYROXINE TOTAL File of Aug 1, 2026 · source file | $5.76 | $17.00 | $5.47–$12.95 | 66% |
| Jersey Shore University Medical Center Neptune City, NJ · (732) 775-5500 T4 TOTAL ONLY+5 more lines at this price File of Dec 31, 2025 · source file | $6.87 | $28.00 | $4.65–$128.00 | 75% |
| Newton Medical Center Newton, NJ · (973) 383-2121 Thyroxine Total File of Apr 1, 2026 · source file | $7.90 | $250.00 | — | 97% |
| University Hospital Newark, NJ · (973) 972-4300 ASSAY OF THYROXINE TOTAL File of Aug 13, 2026 · source file | $7.90 | $67.63 | $5.39–$64.25 | 88% |
| Hackensack Meridian Mountainside Medical Center Montclair, NJ · (973) 429-6000 Thyroxine (thyroid chemical), total File of Feb 12, 2026 · source file | $7.90 | $142.80 | $6.87–$142.80 | 94% |
| Overlook Medical Center Summit, NJ · (908) 522-2000 Thyroxine Total File of Apr 1, 2026 · source file | $7.90 | $176.00 | — | 96% |
| CentraState Medical Center Freehold Township, NJ · (732) 294-7012 Thyroxine Total File of Apr 1, 2026 · source file | $7.90 | $127.00 | — | 94% |
| Morristown Medical Center Morristown, NJ · (973) 971-5450 Thyroxine Total File of Apr 1, 2026 · source file | $7.90 | $179.00 | — | 96% |
| Chilton Medical Center Pompton Plains, NJ · (973) 831-5000 Thyroxine Total File of Apr 1, 2026 · source file | $7.90 | $269.00 | — | 97% |
| NYU Langone Hospital - Suffolk Patchogue, NY · (631) 654-7100 HC ASSAY OF TOTAL THYROXINE File of Jan 1, 2026 · source file | $8.24 | $98.26 | $5.76–$202.60 | 92% |
| NYU Langone – Orthopedic Hospital New York, NY HC ASSAY OF TOTAL THYROXINE File of Jan 1, 2026 · source file | $8.24 | $98.26 | $5.76–$202.60 | 92% |
| NYU Langone Mineola, NY HC ASSAY OF TOTAL THYROXINE File of Jan 1, 2026 · source file | $8.24 | $98.26 | $5.76–$202.60 | 92% |
| NYU Langone Brooklyn, NY HC ASSAY OF TOTAL THYROXINE File of Jan 1, 2026 · source file | $8.24 | $98.26 | $5.76–$202.60 | 92% |
| NYU Langone – Tisch Hospital New York, NY · (212) 263-7300 HC ASSAY OF TOTAL THYROXINE File of Jan 1, 2026 · source file | $8.24 | $98.26 | $5.76–$202.60 | 92% |
| Bronx-Lebanon Hospital Center - Concourse Division Bronx, NY · (212) 588-7000 THYROXINE (T4) File of Apr 17, 2026 · source file | $15.11 | $15.11 | — | — |
| BronxCare Hospital Center - Fulton Campus Bronx, NY · (212) 588-7000 THYROXINE (T4) File of May 5, 2026 · source file | $15.11 | $15.11 | — | — |
| Nassau University Medical Center East Meadow, NY · (516) 572-0123 T4 Total File of Oct 28, 2025 · source file | $16.10 | $23.00 | — | 30% |
| Hunterdon Medical Center Flemington, NJ · (908) 788-6100 THYROXINE T4+1 more line at this price File of Feb 11, 2026 · source file | $22.85 | $73.00 | $58.40–$62.05 | 69% |
| Englewood Health Englewood, NJ · (201) 894-3000 T4 84436 File of Feb 2, 2026 · source file | $30.70 | $307.00 | $24.01–$245.60 | 90% |
| Maimonides Medical Center Brooklyn, NY · (718) 283-6000 THYROXINE TOTAL+1 more line at this price File of Apr 1, 2026 · source file | $36.00 | $36.00 | — | — |
| Nassau University Medical Center East Meadow, NY · (516) 572-0123 Chem Se T 4 File of Oct 28, 2025 · source file | $44.92 | $64.16 | — | 30% |
| The Valley Hospital Paramus, NJ · (201) 447-8000 T4 TOTAL File of May 6, 2026 · source file | $52.80 | $88.00 | $5.50–$74.80 | 40% |
| The Valley Hospital Paramus, NJ · (201) 447-8000 THYROXINE, TOTAL, S File of May 6, 2026 · source file | $53.40 | $89.00 | $5.50–$75.65 | 40% |
| Helen Hayes Hospital West Haverstraw, NY · (845) 786-4000 THYROXINE, TOTAL File of Jul 1, 2024 · source file | $75.00 | $75.00 | $5.70–$10.31 | — |
| Westchester Medical Center Valhalla, NY · (914) 493-7000 ASSAY OF TOTAL THYROXINE File of Jul 28, 2026 · source file | $83.00 | $83.00 | $24.90–$83.00 | — |
| New York Community Hospital of Brooklyn Brooklyn, NY · (718) 692-5302 THYROXINE (T4) File of Apr 1, 2026 · source file | $89.42 | $89.42 | — | — |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Thyroxine (T4) Total File of Apr 1, 2026 · source file | $103.50 | $115.00 | — | 10% |
| Mount Sinai Morningside New York, NY HC Thyroxine (T4) Total File of Apr 1, 2026 · source file | $103.50 | $115.00 | — | 10% |
| Mount Sinai Queens Long Island, NY HC Thyroxine (T4) Total File of Apr 1, 2026 · source file | $103.50 | $115.00 | — | 10% |
| Mount Sinai Brooklyn Brooklyn, NY HC Thyroxine (T4) Total File of Apr 1, 2026 · source file | $103.50 | $115.00 | — | 10% |
| Good Samaritan Hospital Suffern, NY · (914) 368-5000 Total T4 Level File of Jun 29, 2026 · source file | $110.00 | $110.00 | $33.00–$77.00 | — |
| Saint Peters University Hospital New Brunswick, NJ · (732) 745-8600 T4 ENDOCRINE+5 more lines at this price File of Nov 19, 2025 · source file | $254.00 | $261.00 | $6.00–$261.00 | 3% |
| Saint Peters University Hospital New Brunswick, NJ · (732) 745-8600 T4 (30 MIN)+3 more lines at this price File of Nov 19, 2025 · source file | $255.00 | $261.00 | $6.00–$261.00 | 2% |
| New York Eye and Ear Infirmary of Mount Sinai New York, NY · (212) 979-4000 T4-TOTAL File of Apr 1, 2026 · source file | $273.24 | $303.60 | — | 10% |
| University Hospital of Brooklyn Brooklyn, NY · (718) 270-1000 84436 - ASSAY OF TOTAL THYROXINE File of Apr 22, 2025 · source file | $349.00 | $349.00 | $17.00–$132.00 | — |
| Saint Peters University Hospital New Brunswick, NJ · (732) 745-8600 T4 File of Nov 19, 2025 · source file | $760.00 | $767.00 | $6.00–$767.00 | 1% |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
Inpatient: lowest $5.76, median $15.11, highest $349.00 — a 60.6× difference within the same market.
As an outpatient, the same code is billed by 72 facilities here, median $8.24 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 15 of 19 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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.