Magnesium test cost in Providence, RI — inpatient
In Providence-Warwick, RI-MA, 6 hospitals list a cash price for magnesium blood test as an inpatient: from $24.97 to $52.70, with a median of $52.70. The lowest listed price is at Brown University Health Morton Hospital — $27.73 less than the median here. Across Rhode Island, the median is $52.70 at 6 hospitals.
Cash prices at 6 facilities across 5 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 Providence-Warwick, RI-MA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Brown University Health Morton Hospital lowest Taunton, MA · (508) 828-7000 HC URINE MAGNESIUM | $24.97 | $24.97 | — | — | — source file |
| Brown University Health Morton Hospital lowest Taunton, MA · (508) 828-7000 HC MAGNESIUM | $24.97 | $24.97 | — | — | — source file |
| Saint Anne's Hospital Fall River, MA · (508) 674-5600 HC URINE MAGNESIUM | $32.42 | $32.42 | — | — | — source file |
| Saint Anne's Hospital Fall River, MA · (508) 674-5600 HC MAGNESIUM | $32.42 | $32.42 | — | — | — source file |
| Emma Pendleton Bradley Hospital East Providence, RI · (401) 432-1000 HC MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| The Miriam Hospital Providence, RI · (401) 793-2500 HC URINE MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| The Miriam Hospital Providence, RI · (401) 793-2500 HC RBC MAGNESIUM SO | $52.70 | $52.70 | — | — | — source file |
| The Miriam Hospital Providence, RI · (401) 793-2500 HC STONERISK MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| The Miriam Hospital Providence, RI · (401) 793-2500 HC ASSAY OF MAGNESIUM SEND OUTS | $52.70 | $52.70 | — | — | — source file |
| The Miriam Hospital Providence, RI · (401) 793-2500 HC MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Newport Hospital Newport, RI · (401) 846-6400 HC URINE MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Newport Hospital Newport, RI · (401) 846-6400 HC RBC MAGNESIUM SO | $52.70 | $52.70 | — | — | — source file |
| Emma Pendleton Bradley Hospital East Providence, RI · (401) 432-1000 HC URINE MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Newport Hospital Newport, RI · (401) 846-6400 HC ASSAY OF MAGNESIUM SEND OUTS | $52.70 | $52.70 | — | — | — source file |
| Newport Hospital Newport, RI · (401) 846-6400 HC MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Rhode Island Hospital Providence, RI · (401) 444-4000 HC URINE MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Rhode Island Hospital Providence, RI · (401) 444-4000 HC RBC MAGNESIUM SO | $52.70 | $52.70 | — | — | — source file |
| Rhode Island Hospital Providence, RI · (401) 444-4000 HC STONERISK MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Rhode Island Hospital Providence, RI · (401) 444-4000 HC ASSAY OF MAGNESIUM SEND OUTS | $52.70 | $52.70 | — | — | — source file |
| Rhode Island Hospital Providence, RI · (401) 444-4000 HC MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Newport Hospital Newport, RI · (401) 846-6400 HC STONERISK MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Emma Pendleton Bradley Hospital East Providence, RI · (401) 432-1000 HC RBC MAGNESIUM SO | $52.70 | $52.70 | — | — | — source file |
| Emma Pendleton Bradley Hospital East Providence, RI · (401) 432-1000 HC STONERISK MAGNESIUM | $52.70 | $52.70 | — | — | — source file |
| Emma Pendleton Bradley Hospital East Providence, RI · (401) 432-1000 HC ASSAY OF MAGNESIUM SEND OUTS | $52.70 | $52.70 | — | — | — source file |
Inpatient: lowest $24.97, median $52.70, highest $52.70 — a 2.1× difference within the same market.
As an outpatient, the same code is billed by 8 facilities here, median $52.70 — 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.