Lab tests CPT 84439 Outpatient

Free T4 test cost in Jamestown, NY

In Jamestown-Dunkirk, NY, 2 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $6.16 to $21.60, with a median of $13.88. The lowest listed price is at Westfield Memorial Hospital — $7.72 less than the median here. Across New York, the median is $48.47 at 64 hospitals.

Cash prices at 2 facilities across 2 cities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 24, 2026; the hospital files themselves were last updated between Apr 14, 2026 and Apr 14, 2026.

Lowest$6.16Westfield Memorial Hospital
Median$13.88half pay less
Highest$21.60in this market
Difference3.5×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 Jamestown-Dunkirk, NY.

median
Lowest $6.16Highest $47.58

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Westfield Memorial Hospital lowest Westfield, NY CHG ASSAY OF FREE THYROXINE $6.16 $28.00 $5.73–$25.20 78% Apr 14, 2026
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UPMC Chautauqua Jamestown, NY · (716) 487-0141 T4 (THYROXINE) FREE S $21.60 $36.00 $8.00–$32.40 40% —
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UPMC Chautauqua Jamestown, NY · (716) 487-0141 THYROXINE FREE $21.60 $36.00 $8.00–$32.40 40% —
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UPMC Chautauqua Jamestown, NY · (716) 487-0141 THROXINE FREE P4354 $21.60 $36.00 $8.00–$32.40 40% —
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UPMC Chautauqua Jamestown, NY · (716) 487-0141 T4 FREE ANALOG METHOD $21.60 $36.00 $8.00–$32.40 40% —
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UPMC Chautauqua Jamestown, NY · (716) 487-0141 FREE T4 EQUILBRIUM DIALYSIS $21.60 $36.00 $8.00–$32.40 40% —
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UPMC Chautauqua Jamestown, NY · (716) 487-0141 DIRECT FREE T4 (THYROXINE) $21.60 $36.00 $8.00–$32.40 40% —
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Westfield Memorial Hospital Westfield, NY HC THYROXINE (T4) FREE $47.58 $61.00 $5.95–$25.20 22% Apr 14, 2026
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Westfield Memorial Hospital Westfield, NY HC THYROXINE (T4) FREE $47.58 $61.00 — 22% Apr 14, 2026
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Outpatient: lowest $6.16, median $13.88, highest $21.60 — a 3.5× difference within the same market.

As an inpatient, the same code is billed by 2 facilities here, median $34.59. 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 2 of 2 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.