Magnesium test cost in North Port, FL
In North Port-Bradenton-Sarasota, FL, 3 hospitals list a cash price for magnesium blood test: from $5.00 to $878.46, with a median of $16.00. The lowest listed price is at HCA Florida Englewood Hospital — $11.00 less than the median here. Across Florida, the median is $14.30 at 149 hospitals.
Cash prices at 3 facilities across 2 cities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Sep 1, 2026 and Sep 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 North Port-Bradenton-Sarasota, FL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| HCA Florida Englewood Hospital lowest Venice, FL MAGNESIUM RBC | $5.00 | $5.00 | $0.23–$4.60 | — | Sep 1, 2026 source file |
| HCA Florida Sarasota Doctors Hospital Bradenton, FL MAGNESIUM RBC | $16.00 | $16.00 | $0.75–$14.72 | — | Sep 1, 2026 source file |
| HCA Florida Englewood Hospital Venice, FL MAGNESIUM URINE | $83.39 | $83.39 | $3.92–$76.72 | — | Sep 1, 2026 source file |
| HCA Florida Blake Hospital Bradenton, FL · (941) 798-6110 MAGNESIUM OTHER | $878.46 | $878.46 | $41.29–$808.18 | — | Sep 1, 2026 source file |
| HCA Florida Blake Hospital Bradenton, FL · (941) 798-6110 MAGNESIUM BLD | $878.46 | $878.46 | $41.29–$808.18 | — | Sep 1, 2026 source file |
| HCA Florida Englewood Hospital Venice, FL MAGNESIUM BLD | $1,048.94 | $1,048.94 | $49.30–$965.02 | — | Sep 1, 2026 source file |
| HCA Florida Sarasota Doctors Hospital Bradenton, FL MAGNESIUM BLD | $1,052.82 | $1,052.82 | $49.48–$968.59 | — | Sep 1, 2026 source file |
| HCA Florida Sarasota Doctors Hospital Bradenton, FL MAGNESIUM URINE | $1,052.82 | $1,052.82 | $49.48–$968.59 | — | Sep 1, 2026 source file |
| HCA Florida Sarasota Doctors Hospital Bradenton, FL MAGNESIUM OTHER | $1,800.84 | $1,800.84 | $84.64–$1,656.77 | — | Sep 1, 2026 source file |
Outpatient: lowest $5.00, median $16.00, highest $878.46 — a 175.7× difference within the same market.
Cash or insurance?
At 0 of 3 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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.