Magnesium test cost in Corning, IA — inpatient
In Corning, IA, 1 hospital lists a cash price for magnesium blood test as an inpatient: from $10.08 to $10.08, with a median of $10.08. Across Iowa, the median is $43.80 at 37 hospitals.
Cash prices at 1 facility for code 83735, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 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 Corning, IA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Alegent Health - Mercy Hospital, Corning Iowa lowest Corning, IA HC RHC MAGNESIUM | $10.08 | $21.00 | $12.60–$20.58 | 52% | Feb 28, 2026 source file |
| Alegent Health - Mercy Hospital, Corning Iowa Corning, IA HC MAGNESIUM | $55.68 | $116.00 | $69.60–$113.68 | 52% | Feb 28, 2026 source file |
Inpatient: lowest $10.08, median $10.08, highest $10.08.
As an outpatient, the same code is billed by 1 facility here, median $10.08 — 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 and 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 magnesium test measures the level of magnesium in the blood. Doctors order it for muscle cramps or weakness, an irregular heartbeat, low potassium or calcium that does not correct, and for people on diuretics, long-term acid-reducing drugs or with kidney disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.