Magnesium test cost in Kankakee, IL
In Kankakee, IL, 1 hospital lists a cash price for magnesium blood test: from $16.77 to $16.77, with a median of $16.77. Across Illinois, the median is $48.60 at 65 hospitals.
Cash prices at 1 facility for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Riverside Medical Center Kankakee, IL · (815) 933-1671 MAGNESIUM LEVEL | $16.77 | $63.00 | $6.70–$94.24 | 73% | — source file |
Outpatient: lowest $16.77, median $16.77, highest $16.77.
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.
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.
| Riverside Medical Center Kankakee, ILASSAY OF MAGNESIUM | $1.60 | file |