Magnesium test cost in Mason City, IA
In Mason City, IA, 1 hospital lists a cash price for magnesium blood test: from $70.85 to $70.85, with a median of $70.85. Across Iowa, the median is $43.80 at 37 hospitals.
Cash prices at 1 facility for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Mar 31, 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 Mason City, IA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Health Services-Iowa lowest Mason City, IA HC Magnesium Urine | $70.85 | $109.00 | $6.50–$109.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa lowest Mason City, IA HC Warde 3400288 Magnesium Urine | $70.85 | $109.00 | $6.50–$109.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Quest 14460 Magnesium Urine | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Magnesium | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Mayo Efpo Magnesium Stool | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Magnesium 24 Hour Urine | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Warde Magnesium RBC | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Quest Magnesium RBC | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Warde 3717400 Magnesium 24 Hour Urine | $72.80 | $112.00 | $6.50–$112.00 | 35% | Mar 31, 2026 source file |
| Mercy Health Services-Iowa Mason City, IA HC Magnesium | $1,099.00 | — | $6.70–$161.50 | — | Mar 31, 2026 source file |
Outpatient: lowest $70.85, median $70.85, highest $70.85.
As an inpatient, the same code is billed by 1 facility here, median $70.85. 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 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 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.