Magnesium test cost in Centralia, WA — inpatient
In Centralia, WA, 1 hospital lists a cash price for magnesium blood test as an inpatient: from $45.24 to $45.24, with a median of $45.24. Across Washington, the median is $49.20 at 33 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 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 Centralia, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Providence Centralia Hospital lowest Centralia, WA · (360) 330-8530 HC ASSAY OF MAGNESIUM LAB | $45.24 | $87.00 | — | 48% | Apr 1, 2026 source file |
| Providence Centralia Hospital Centralia, WA · (360) 330-8530 HC ASSAY OF MAGNESIUM CDM | $55.64 | $107.00 | — | 48% | Apr 1, 2026 source file |
| Providence Centralia Hospital Centralia, WA · (360) 330-8530 HC MAGNESIUM QUANT URINE | $85.80 | $165.00 | — | 48% | Apr 1, 2026 source file |
Inpatient: lowest $45.24, median $45.24, highest $45.24.
As an outpatient, the same code is billed by 1 facility here, median $45.24 — 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.