Magnesium test cost in Greenville, SC — inpatient
In Greenville-Anderson-Greer, SC, 1 hospital lists a cash price for magnesium blood test as an inpatient: from $20.40 to $20.40, with a median of $20.40. Across South Carolina, the median is $21.50 at 19 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 — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Greenville-Anderson-Greer, SC.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| St Francis Hospital lowest Greenville, SC · (800) 805-5678 HC So2 Magnesium | $20.40 | $34.00 | — | 40% | — source file |
| St Francis Hospital lowest Greenville, SC · (800) 805-5678 HC So2 Magnesium | $20.40 | $34.00 | — | 40% | — source file |
| St Francis Hospital Greenville, SC · (800) 805-5678 HC So1 Magnesium | $81.00 | $135.00 | — | 40% | — source file |
| St Francis Hospital Greenville, SC · (800) 805-5678 HC So1 Magnesium | $81.00 | $135.00 | — | 40% | — source file |
| St Francis Hospital Greenville, SC · (800) 805-5678 HC Assay of Magnesium | $82.20 | $137.00 | — | 40% | — source file |
| St Francis Hospital Greenville, SC · (800) 805-5678 HC Assay of Magnesium | $82.20 | $137.00 | — | 40% | — source file |
Inpatient: lowest $20.40, median $20.40, highest $20.40.
As an outpatient, the same code is billed by 2 facilities here, median $37.10 — 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.