Magnesium test cost in Palm Bay, FL — inpatient
In Palm Bay-Melbourne-Titusville, FL, 5 hospitals list a cash price for magnesium blood test as an inpatient: from $5.60 to $13.25, with a median of $13.25. The lowest listed price is at Orlando Health Melbourne Hospital — $7.65 less than the median here. Across Florida, the median is $13.20 at 81 hospitals.
Cash prices at 5 facilities across 3 cities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 2, 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 Palm Bay-Melbourne-Titusville, FL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Orlando Health Melbourne Hospital lowest Melbourne, FL · (321) 752-1200 Hb Assay Of Magnesium - Magnesium Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Melbourne Hospital lowest Melbourne, FL · (321) 752-1200 Hb Assay Of Magnesium - Magnesium 24Hr Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Melbourne Hospital lowest Melbourne, FL · (321) 752-1200 Hb Assay Of Magnesium - Magnesium | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Melbourne Hospital Melbourne, FL · (321) 752-1200 Hb Assay Of Magnesium-Ref | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Melbourne Hospital Melbourne, FL · (321) 752-1200 Hb Magnesium, Urine (Sup24)-Exc | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Viera Hospital Melbourne, FL · (321) 434-9000 HC ASSAY OF MAGNESIUM - MAGNESIUM | $13.25 | $53.00 | $31.80–$50.35 | 75% | Mar 2, 2026 source file |
| Holmes Regional Medical Center Melbourne, FL · (321) 434-7000 HC ASSAY OF MAGNESIUM - MAGNESIUM | $13.25 | $53.00 | $31.80–$50.35 | 75% | Mar 2, 2026 source file |
| Palm Bay Hospital Palm Bay, FL · (321) 434-8000 HC ASSAY OF MAGNESIUM - MAGNESIUM | $13.25 | $53.00 | $31.80–$50.35 | 75% | Mar 2, 2026 source file |
| Cape Canaveral Hospital Cocoa Beach, FL · (321) 799-7111 HC ASSAY OF MAGNESIUM - MAGNESIUM | $13.25 | $53.00 | $31.80–$50.35 | 75% | Mar 2, 2026 source file |
| Orlando Health Melbourne Hospital Melbourne, FL · (321) 752-1200 Hb Magnesium, Stool-Ref | $21.20 | $53.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Melbourne Hospital Melbourne, FL · (321) 752-1200 Hb Magnesium,Rbc-Ref | $42.40 | $106.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Melbourne Hospital Melbourne, FL · (321) 752-1200 Hb Magnesium,Rbc-Arup-Ref | $50.00 | $125.00 | — | 60% | Apr 1, 2026 source file |
Inpatient: lowest $5.60, median $13.25, highest $13.25 — a 2.4× difference within the same market.
As an outpatient, the same code is billed by 5 facilities here, median $13.25 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 4 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 4 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
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.