Magnesium test cost in Flint, MI
In Flint, MI, 1 hospital lists a cash price for magnesium blood test: from $39.50 to $39.50, with a median of $39.50. Across Michigan, the median is $23.35 at 60 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 Dec 31, 2025 and Dec 31, 2025.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Flint, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| McLaren Flint lowest Flint, MI · (810) 342-2000 Magnesium 24 Hr Urine | $39.50 | $79.00 | $3.66–$22.12 | 50% | Dec 31, 2025 source file |
| McLaren Flint lowest Flint, MI · (810) 342-2000 Magnesium Level | $39.50 | $79.00 | $3.66–$38.03 | 50% | Dec 31, 2025 source file |
| McLaren Flint lowest Flint, MI · (810) 342-2000 Magnesium Urine | $39.50 | $79.00 | $3.66–$22.12 | 50% | Dec 31, 2025 source file |
Outpatient: lowest $39.50, median $39.50, highest $39.50.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not 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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 83735 ($43.50). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Henry Ford Health Grand Blanc Twp, MIR-STOOL MAGNESIUM | $4.17 | file |