Magnesium test cost in Richmond, VA — inpatient
In Richmond, VA, 5 hospitals list a cash price for magnesium blood test as an inpatient: from $10.80 to $21.60, with a median of $21.60. The lowest listed price is at Bon Secours Southside Medical Center — $10.80 less than the median here. Across Virginia, the median is $11.85 at 37 hospitals.
Cash prices at 5 facilities across 4 cities 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 Richmond, VA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Bon Secours Southside Medical Center lowest Petersburg, VA · (804) 765-5000 HC So2 Magnesium | $10.80 | $36.00 | — | 70% | — source file |
| Bon Secours Southside Medical Center Petersburg, VA · (804) 765-5000 HC So Magnesium | $12.00 | $40.00 | — | 70% | — source file |
| Bon Secours Richmond Community Hospital Richmond, VA · (804) 225-1701 HC So2 Magnesium | $21.60 | $36.00 | — | 40% | — source file |
| Bon Secours St Marys Hospital of Richmond Richmond, VA · (804) 285-2011 HC So2 Magnesium | $21.60 | $36.00 | — | 40% | — source file |
| Bon Secours St Francis Medical Center Midlothian, VA · (804) 594-7400 HC So2 Magnesium | $21.60 | $36.00 | — | 40% | — source file |
| Bon Secours Memorial Regional Medical Center Mechanicsville, VA · (804) 764-6000 HC So2 Magnesium | $21.60 | $36.00 | — | 40% | — source file |
| Bon Secours Southside Medical Center Petersburg, VA · (804) 765-5000 HC Assay of Magnesium | $75.00 | $250.00 | — | 70% | — source file |
| Bon Secours Memorial Regional Medical Center Mechanicsville, VA · (804) 764-6000 HC Assay of Magnesium | $88.80 | $148.00 | — | 40% | — source file |
| Bon Secours St Marys Hospital of Richmond Richmond, VA · (804) 285-2011 HC Assay of Magnesium | $88.80 | $148.00 | — | 40% | — source file |
| Bon Secours Richmond Community Hospital Richmond, VA · (804) 225-1701 HC Assay of Magnesium | $88.80 | $148.00 | — | 40% | — source file |
| Bon Secours St Francis Medical Center Midlothian, VA · (804) 594-7400 HC Assay of Magnesium | $88.80 | $148.00 | — | 40% | — source file |
| Bon Secours Richmond Community Hospital Richmond, VA · (804) 225-1701 HC So Magnesium | $121.20 | $202.00 | — | 40% | — source file |
| Bon Secours St Francis Medical Center Midlothian, VA · (804) 594-7400 HC So Magnesium | $121.20 | $202.00 | — | 40% | — source file |
| Bon Secours Memorial Regional Medical Center Mechanicsville, VA · (804) 764-6000 HC So Magnesium | $126.00 | $210.00 | — | 40% | — source file |
| Bon Secours St Marys Hospital of Richmond Richmond, VA · (804) 285-2011 HC So Magnesium | $126.00 | $210.00 | — | 40% | — source file |
Inpatient: lowest $10.80, median $21.60, highest $21.60 — a 2.0× difference within the same market.
As an outpatient, the same code is billed by 5 facilities here, median $21.60 — 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.