Magnesium test cost in Lima, OH — inpatient
In Lima, OH, 2 hospitals list a cash price for magnesium blood test as an inpatient: from $42.00 to $75.60, with a median of $58.80. The lowest listed price is at Mercy Health St Ritas Medical Center — $16.80 less than the median here. Across Ohio, the median is $33.30 at 100 hospitals.
Cash prices at 2 facilities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 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 Lima, OH.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Health St Ritas Medical Center lowest Lima, OH · (419) 227-3361 HC Assay of Magnesium | $42.00 | $70.00 | — | 40% | — source file |
| Mercy Health St Ritas Medical Center Lima, OH · (419) 227-3361 HC So Magnesium | $52.20 | $87.00 | — | 40% | — source file |
| Lima Memorial Health System Lima, OH · (419) 998-4731 *Magnesium,Urine.Umg,Umgr | $75.60 | $84.00 | — | 10% | Apr 1, 2026 source file |
| Lima Memorial Health System Lima, OH · (419) 998-4731 Urine Magnesium Random | $75.60 | $84.00 | — | 10% | Apr 1, 2026 source file |
| Lima Memorial Health System Lima, OH · (419) 998-4731 Magnesium | $79.20 | $88.00 | — | 10% | Apr 1, 2026 source file |
| Lima Memorial Health System Lima, OH · (419) 998-4731 Assay Of Magnesium | $86.40 | $96.00 | — | 10% | Apr 1, 2026 source file |
Inpatient: lowest $42.00, median $58.80, highest $75.60 — a 1.8× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $56.10 — that is the price to compare if you are not being admitted.
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.