Iron test cost in Wisconsin Rapids, WI — inpatient
In Wisconsin Rapids-Marshfield, WI, 2 hospitals list a cash price for iron blood test (serum iron) as an inpatient: from $47.50 to $53.30, with a median of $50.40. The lowest listed price is at Marshfield Medical Center - Marshfield — $2.90 less than the median here. Across Wisconsin, the median is $53.30 at 80 hospitals.
Cash prices at 2 facilities across 2 cities for code 83540, as an inpatient (admitted to hospital) . Collected Sep 24, 2026; the hospital files themselves were last updated between Feb 20, 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 Wisconsin Rapids-Marshfield, WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Marshfield Medical Center - Marshfield lowest Marshfield, WI · (715) 387-9963 IRON ASSAY-TECH | $47.50 | $50.00 | $27.50–$48.50 | 5% | Feb 20, 2026 source file |
| Aspirus Wisconsin Rapids Hospital Wisconsin Rapids, WI · (715) 423-6060 ASSAY OF IRON | $53.30 | $82.00 | — | 35% | Apr 1, 2026 source file |
| Aspirus Wisconsin Rapids Hospital Wisconsin Rapids, WI · (715) 423-6060 Fac Assay of Iron | $53.30 | $82.00 | — | 35% | Apr 1, 2026 source file |
Inpatient: lowest $47.50, median $50.40, highest $53.30 — a 1.1× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $50.40 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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 serum iron test measures the iron carried in the blood. It is usually ordered with iron-binding capacity and ferritin to check for iron deficiency or iron overload.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.