Magnesium test cost in Orlando, FL
In Orlando-Kissimmee-Sanford, FL, 8 hospitals list a cash price for magnesium blood test: from $5.60 to $34.00, with a median of $9.40. The lowest listed price is at Orlando Health and 3 other hospitals — $3.80 less than the median here. Across Florida, the median is $13.20 at 81 hospitals.
Cash prices at 8 facilities across 7 cities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Apr 1, 2026.
Lowest$5.60Orlando Health + 3 more
Median$9.40half pay less
Highest$34.00in this market
Difference6.1×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Orlando-Kissimmee-Sanford, FL.
median
Lowest $5.60Highest $167.84
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Orlando Health lowest Orlando, FL · (321) 841-5111 Hb Assay Of Magnesium - Magnesium | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health lowest Orlando, FL · (321) 841-5111 Hb Assay Of Magnesium - Magnesium Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health lowest Orlando, FL · (321) 841-5111 Hb Assay Of Magnesium - Magnesium 24Hr Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central lowest Ocoee, FL · (407) 296-1000 Hb Assay Of Magnesium - Magnesium | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central lowest Ocoee, FL · (407) 296-1000 Hb Assay Of Magnesium - Magnesium Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central lowest Ocoee, FL · (407) 296-1000 Hb Assay Of Magnesium - Magnesium 24Hr Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital lowest Saint Cloud, FL · (407) 892-2135 Hb Assay Of Magnesium - Magnesium 24Hr Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital lowest Clermont, FL · (352) 394-4071 Hb Assay Of Magnesium - Magnesium | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital lowest Clermont, FL · (352) 394-4071 Hb Assay Of Magnesium - Magnesium Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital lowest Clermont, FL · (352) 394-4071 Hb Assay Of Magnesium - Magnesium 24Hr Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital lowest Saint Cloud, FL · (407) 892-2135 Hb Assay Of Magnesium - Magnesium Urine | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital lowest Saint Cloud, FL · (407) 892-2135 Hb Assay Of Magnesium - Magnesium | $5.60 | $14.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital Clermont, FL · (352) 394-4071 Hb Magnesium, Urine (Sup24)-Exc | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Orlando, FL · (321) 841-5111 Hb Magnesium, Urine (Sup24)-Exc | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital Clermont, FL · (352) 394-4071 Hb Assay Of Magnesium-Ref | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central Ocoee, FL · (407) 296-1000 Hb Assay Of Magnesium-Ref | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital Saint Cloud, FL · (407) 892-2135 Hb Assay Of Magnesium-Ref | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central Ocoee, FL · (407) 296-1000 Hb Magnesium, Urine (Sup24)-Exc | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital Saint Cloud, FL · (407) 892-2135 Hb Magnesium, Urine (Sup24)-Exc | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Orlando, FL · (321) 841-5111 Hb Assay Of Magnesium-Ref | $6.00 | $15.00 | — | 60% | Apr 1, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF HB CALCULI RISK ASSESSMENT UR - MG | $13.20 | $24.00 | $10.80–$16.63 | 45% | Mar 31, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 UF HB CALCULI RISK ASSESSMENT UR - MG | $13.20 | $24.00 | $10.80–$19.92 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF UC MAGNESIUM | $19.25 | $35.00 | $15.75–$24.26 | 45% | Mar 31, 2026 source file |
| South Lake Hospital Clermont, FL · (352) 394-4071 Hb Magnesium, Stool-Ref | $21.20 | $53.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central Ocoee, FL · (407) 296-1000 Hb Magnesium, Stool-Ref | $21.20 | $53.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital Saint Cloud, FL · (407) 892-2135 Hb Magnesium, Stool-Ref | $21.20 | $53.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Orlando, FL · (321) 841-5111 Hb Magnesium, Stool-Ref | $21.20 | $53.00 | — | 60% | Apr 1, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 UF HB MAGNESIUM URINE | $26.40 | $48.00 | $2.74–$7.37 | 45% | Mar 31, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 UF HB MAGNESIUM | $26.40 | $48.00 | $2.74–$7.37 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF HB SUPERSATURATION PROFILE URINE | $26.40 | $48.00 | $21.60–$33.26 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF HB MAGNESIUM | $26.40 | $48.00 | $21.60–$33.26 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF HB MAGNESIUM URINE | $26.40 | $48.00 | $21.60–$33.26 | 45% | Mar 31, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 UF HB SUPERSATURATION PROFILE URINE | $26.40 | $48.00 | $21.60–$39.84 | 45% | Mar 31, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $27.17 | $27.17 | — | — | Apr 1, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 UF HB MAGNESIUM RBC | $28.05 | $51.00 | $22.95–$42.33 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF HB MAGNESIUM RBC | $28.05 | $51.00 | $22.95–$35.34 | 45% | Mar 31, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 HB MAGNESIUM | $31.35 | $57.00 | $25.65–$47.31 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 HB MAGNESIUM | $31.35 | $57.00 | $2.74–$7.37 | 45% | Mar 31, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM - SUPERSATURATION PROFILE, URINE - ARUP | $34.00 | $34.00 | — | — | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital Saint Cloud, FL · (407) 892-2135 Hb Magnesium,Rbc-Ref | $42.40 | $106.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central Ocoee, FL · (407) 296-1000 Hb Magnesium,Rbc-Ref | $42.40 | $106.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital Clermont, FL · (352) 394-4071 Hb Magnesium,Rbc-Ref | $42.40 | $106.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Orlando, FL · (321) 841-5111 Hb Magnesium,Rbc-Ref | $42.40 | $106.00 | — | 60% | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC CVICU IONIZED MAGNESIUM POC | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM TIMED URINE | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM LEVEL | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM, URINE - ARUP | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM URINE RANDOM | $44.00 | $44.00 | — | — | Apr 1, 2026 source file |
| Orlando Health Orlando, FL · (321) 841-5111 Hb Magnesium,Rbc-Arup-Ref | $50.00 | $125.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital Saint Cloud, FL · (407) 892-2135 Hb Magnesium,Rbc-Arup-Ref | $50.00 | $125.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital Clermont, FL · (352) 394-4071 Hb Magnesium,Rbc-Arup-Ref | $50.00 | $125.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central Ocoee, FL · (407) 296-1000 Hb Magnesium,Rbc-Arup-Ref | $50.00 | $125.00 | — | 60% | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC MAGNESIUM RBC - ARUP | $101.00 | $101.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC MAGNESIUM RBC - ARUP | $167.84 | $167.84 | — | — | Apr 1, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC MAGNESIUM URINE RANDOM | $167.84 | $167.84 | — | — | Apr 1, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC MAGNESIUM LEVEL | $167.84 | $167.84 | — | — | Apr 1, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $167.84 | $167.84 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $5.60, median $9.40, highest $34.00 — a 6.1× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $5.60. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 2 of 2 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.