Free T4 (thyroid) test at Northwestern Medicine McHenry
CPT 84439 · McHenry, IL
These are Northwestern Medicine McHenry's own posted figures from its standard-charges file dated April 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 40 Illinois hospitals we index that post a cash price for this service: lowest $9.00, median $107.74, highest $347.00. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Advocate Good Shepherd Hospital Barrington, IL | 14.3 mi | $65.00 | $130.00 | 2025-11-04 |
| Advocate Condell Medical Center Libertyville, IL | 18.0 mi | $65.00 | $130.00 | 2025-11-04 |
| Advocate Sherman Hospital Elgin, IL | 20.0 mi | $65.00 | $130.00 | 2025-11-04 |
| Northwestern Lake Forest Hospital Lake Forest, IL | 22.8 mi | $121.10 | $173.00 | 2026-04-01 |
| Northwestern Medicine Delnor Community Hospital Geneva, IL | 31.3 mi | $121.10 | $173.00 | 2026-04-01 |
| Advocate Lutheran General Hospital Park Ridge, IL | 31.7 mi | $65.00 | $130.00 | 2025-11-04 |
| Northwestern Medicine Central Dupage Hospital Winfield, IL | 32.3 mi | $121.10 | $173.00 | 2026-04-01 |
| Elmhurst Memorial Hospital Elmhurst, IL | 34.9 mi | $175.00 | $175.00 | 2026-04-01 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 84439 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| HB Ref Thyroxine, Free, Direct Dialysis (Mayo) standard_charge_information[3036] | outpatient | $121.10 | $173.00 | $33.39 – $173.00 |
| HB T4, Free standard_charge_information[3145] | outpatient | $121.10 | $173.00 | $33.39 – $173.00 |
| HB Ref T4, Free standard_charge_information[35556] | outpatient | $121.10 | $173.00 | $33.39 – $173.00 |
| HB Ref T4, Free (Lc) standard_charge_information[43389] | outpatient | $121.10 | $173.00 | $33.39 – $173.00 |
| HB Ref Free T4 (Gva) standard_charge_information[59061] | outpatient | $121.10 | $173.00 | $33.39 – $173.00 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Northwestern Medicine McHenry prices