Free T4 test cost in Portland, OR — inpatient
In Portland-Vancouver-Hillsboro, OR-WA, 11 hospitals list a cash price for Free T4 (free thyroxine) thyroid blood test as an inpatient: from $6.38 to $45.75, with a median of $37.40. The lowest listed price is at Legacy Salmon Creek Medical Center and 4 other hospitals — $31.02 less than the median here. Across Oregon, the median is $44.25 at 39 hospitals.
Cash prices at 11 facilities across 9 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 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 Portland-Vancouver-Hillsboro, OR-WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Legacy Salmon Creek Medical Center lowest Vancouver, WA CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center lowest Portland, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center lowest Portland, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center lowest Gresham, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center lowest Tualatin, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR CHG ASSAY OF FREE THYROXINE | $6.38 | $9.82 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR HC T4 FREE THYROXINE FREE | $16.22 | $24.96 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR HC T4 FREE BY DIRECT DIALYSIS | $21.45 | $33.00 | — | 35% | Apr 1, 2026 source file |
| Kaiser Sunnyside Medical Center Clackamas, OR ASSAY OF FREE THYROXINE | $37.40 | $44.00 | $11.00–$36.34 | 15% | — source file |
| Kaiser Foundation Hospital - Westside Hillsboro, OR ASSAY OF FREE THYROXINE | $37.40 | $44.00 | $11.00–$36.34 | 15% | — source file |
| Providence Health and Services - Oregon Newberg, OR HC THYROXINE FREE | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Oregon City, OR HC THYROXINE FREE | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Oregon City, OR HC ASSAY OF FREE THYROXINE LAB | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Oregon City, OR HC ASSAY OF FREE THYROXINE CDM | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Oregon City, OR HC ZT4 FREE BY EQUIL DIALYSIS(ARUP) | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC THYROXINE FREE | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC ASSAY OF FREE THYROXINE LAB | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC ASSAY OF FREE THYROXINE CDM | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC ZT4 FREE BY EQUIL DIALYSIS(ARUP) | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC THYROXINE FREE | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC ASSAY OF FREE THYROXINE LAB | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC ASSAY OF FREE THYROXINE CDM | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Portland, OR HC ZT4 FREE BY EQUIL DIALYSIS(ARUP) | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Milwaukie, OR HC THYROXINE FREE | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Milwaukie, OR HC ASSAY OF FREE THYROXINE LAB | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Milwaukie, OR HC ASSAY OF FREE THYROXINE CDM | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Milwaukie, OR HC ZT4 FREE BY EQUIL DIALYSIS(ARUP) | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Newberg, OR HC ASSAY OF FREE THYROXINE LAB | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Newberg, OR HC ASSAY OF FREE THYROXINE CDM | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Providence Health and Services - Oregon Newberg, OR HC ZT4 FREE BY EQUIL DIALYSIS(ARUP) | $45.75 | $61.00 | — | 25% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR HC T4 FREE THYROXINE FREE | $130.65 | $201.00 | — | 35% | Apr 1, 2026 source file |
Inpatient: lowest $6.38, median $37.40, highest $45.75 — a 7.2× difference within the same market.
As an outpatient, the same code is billed by 15 facilities here, median $45.75 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 0 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.