Magnesium test cost in Miami, FL
In Miami-Fort Lauderdale-West Palm Beach, FL, 17 hospitals list a cash price for magnesium blood test: from $5.67 to $14.30, with a median of $8.62. The lowest listed price is at Holy Cross Hospital-Ft. Lauderdale — $2.95 less than the median here. Across Florida, the median is $13.20 at 81 hospitals.
Cash prices at 17 facilities across 14 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 30, 2026 and Sep 15, 2026.
Lowest$5.67Holy Cross Hospital-Ft. Lauderdale
Median$8.62half pay less
Highest$14.30in this market
Difference2.5×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 Miami-Fort Lauderdale-West Palm Beach, FL.
median
Lowest $5.67Highest $1,760.20
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Holy Cross Hospital-Ft. Lauderdale lowest Ft. Lauderdale, FL · (954) 771-8000 HC Warde Magnesium Urine | $5.67 | $8.73 | $2.18–$216.00 | 35% | Mar 31, 2026 source file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FL · (954) 771-8000 HC Warde Magnesium RBC | $5.74 | $8.83 | $2.21–$216.00 | 35% | Mar 31, 2026 source file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FL · (954) 771-8000 HC Warde 3717400 Magnesium 24 Hour Urine | $5.74 | $8.83 | $2.21–$216.00 | 35% | Mar 31, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Assay of Magnesium Quest #442 | $5.83 | $8.33 | $0.42–$717.95 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Assay of Magnesium Quest #442 | $5.83 | $8.33 | $0.42–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Assay of Magnesium Quest #442 | $5.83 | $8.33 | $0.42–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Assay of Magnesium Quest #442 | $5.83 | $8.33 | $0.42–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Assay of Magnesium Quest #15565z | $5.91 | $8.45 | $0.43–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Assay of Magnesium Quest #15565z | $5.91 | $8.45 | $0.43–$717.95 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Assay of Magnesium Quest #15565z | $5.91 | $8.45 | $0.43–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Assay of Magnesium Quest #15565z | $5.91 | $8.45 | $0.43–$717.95 | 30% | May 27, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL MAGNESIUM URINE | $8.45 | $13.00 | $6.50–$13.00 | 35% | Jun 15, 2026 source file |
| Broward Health Coral Springs Coral Springs, FL · (954) 344-3121 HC MAGNESIUM,RANDOM URINE(W CREATININE)-OS | $8.62 | $8.62 | $0.59–$7.37 | — | Sep 15, 2026 source file |
| Broward Health North Deerfield Beach, FL · (954) 786-6400 HC MAGNESIUM,RANDOM URINE(W CREATININE)-OS | $8.62 | $8.62 | $0.59–$7.37 | — | Sep 15, 2026 source file |
| Broward Health Medical Center Fort Lauderdale, FL · (954) 355-4400 HC MAGNESIUM,RANDOM URINE(W CREATININE)-OS | $8.62 | $8.62 | $0.59–$7.37 | — | Sep 15, 2026 source file |
| Broward Health Imperial Point Fort Lauderdale, FL · (954) 776-8500 HC MAGNESIUM,RANDOM URINE(W CREATININE)-OS | $8.62 | $8.62 | $0.59–$7.37 | — | Sep 15, 2026 source file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FL · (954) 771-8000 PR Warde Magnesium RBC | $8.83 | $8.83 | $2.35–$8.83 | — | Mar 31, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU MAGNESIUM, URINE | $10.40 | $16.00 | $5.76–$16.00 | 35% | Mar 30, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL SSAT24 MAGNESIUM, UR | $12.35 | $19.00 | $4.75–$17.10 | 35% | Jun 15, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Ref Assay of Magnesium (A) | $13.30 | $19.00 | $0.96–$717.95 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Ref Assay of Magnesium (A) | $13.30 | $19.00 | $0.96–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Ref Assay of Magnesium (A) | $13.30 | $19.00 | $0.96–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Ref Assay of Magnesium (A) | $13.30 | $19.00 | $0.96–$717.95 | 30% | May 27, 2026 source file |
| West Kendall Baptist Hospital Miami, FL · (786) 467-2000 Magnesium-red cell | $14.30 | $22.00 | $2.76–$22.00 | 35% | Mar 30, 2026 source file |
| Baptist Hospital of Miami Miami, FL · (786) 596-1960 Magnesium-red cell | $14.30 | $22.00 | $2.85–$22.00 | 35% | Mar 30, 2026 source file |
| Homestead Hospital Homestead, FL · (786) 243-8000 Magnesium-red cell | $14.30 | $22.00 | $2.76–$22.00 | 35% | Mar 30, 2026 source file |
| Bethesda Hospital Boynton Beach, FL · (561) 737-7733 Magnesium-red cell | $14.30 | $22.00 | $2.85–$22.00 | 35% | Mar 30, 2026 source file |
| Doctors Hospital Coral Gables, FL · (786) 308-3000 Magnesium-red cell | $14.30 | $22.00 | $2.76–$22.00 | 35% | Mar 30, 2026 source file |
| South Miami Hospital South Miami, FL · (786) 662-4000 Magnesium-red cell | $14.30 | $22.00 | $2.76–$22.00 | 35% | Mar 30, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL ASSAY OF MAGNESIUM | $15.60 | $24.00 | $12.00–$24.00 | 35% | Jun 15, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Mag 24hr Ua | $17.50 | $25.00 | $1.26–$717.95 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Mag 24hr Ua | $17.50 | $25.00 | $1.26–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Mag 24hr Ua | $17.50 | $25.00 | $1.26–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Mag 24hr Ua | $17.50 | $25.00 | $1.26–$717.95 | 30% | May 27, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU M/NUTRIENT W/DEF PNL MAG | $18.20 | $28.00 | $6.70–$28.00 | 35% | Mar 30, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 MAGNESIUM. | $19.50 | $30.00 | $6.70–$30.00 | 35% | Mar 30, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU MAGNESIUM, 24HR URINE | $20.80 | $32.00 | $6.70–$32.00 | 35% | Mar 30, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU MAGNESIUM, FECAL | $22.75 | $35.00 | $6.70–$35.00 | 35% | Mar 30, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 Magnesium, Rbcs Q200 | $23.10 | $33.00 | $1.66–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 Magnesium, Rbcs Q200 | $23.10 | $33.00 | $1.66–$717.95 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 Magnesium, Rbcs Q200 | $23.10 | $33.00 | $1.66–$717.95 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 Magnesium, Rbcs Q200 | $23.10 | $33.00 | $1.66–$717.95 | 30% | May 27, 2026 source file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FL · (954) 771-8000 PR Magnesium | $34.00 | $34.00 | $2.35–$34.00 | — | Mar 31, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU MAGNESIUM FECAL | $41.60 | $64.00 | $6.70–$64.00 | 35% | Mar 30, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL *MAG ASSAY | $43.55 | $67.00 | $16.75–$60.30 | 35% | Jun 15, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL MAGNESIUM | $57.20 | $88.00 | $22.00–$79.20 | 35% | Jun 15, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL %STCATH MAGNESIUM | $57.20 | $88.00 | $2.59–$7.37 | 35% | Jun 15, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 MML ELECTROLYTE PNL FECES MAGNESM | $64.35 | $99.00 | $6.70–$99.00 | 35% | Mar 30, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU CATHARTIC LAXATIVE PNL MG | $65.65 | $101.00 | $6.70–$101.00 | 35% | Mar 30, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL MAG ASSAY | $83.85 | $129.00 | $2.59–$7.37 | 35% | Jun 15, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ARU MAGNESIUM RBC INTRACELLULAR | $91.00 | $140.00 | $6.70–$140.00 | 35% | Mar 30, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL MAGNESIUM RBC | $96.85 | $149.00 | $37.25–$134.10 | 35% | Jun 15, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 ASSAY OF MAGNESIUM | $120.25 | $185.00 | $6.70–$185.00 | 35% | Mar 30, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 MAGNESIUM, URINE 24 HR | $152.10 | $234.00 | $6.70–$234.00 | 35% | Mar 30, 2026 source file |
| Cleveland Clinic Weston Hospital Nonprofit Weston, FL STCATH ASSAY OF MAGNESIUM | $154.05 | $237.00 | $59.25–$213.30 | 35% | Jun 15, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 MML CATHARTIC LAX, MAGNESIUM | $162.50 | $250.00 | $6.70–$250.00 | 35% | Mar 30, 2026 source file |
| Boca Raton Regional Hospital Boca Raton, FL · (561) 955-4200 MML CATH LAXATIVES PRFL MAG, STL | $172.90 | $266.00 | $6.70–$266.00 | 35% | Mar 30, 2026 source file |
| Doctors Hospital Coral Gables, FL · (786) 308-3000 ASSAY OF MAGNESIUM | $176.80 | $272.00 | $2.76–$272.00 | 35% | Mar 30, 2026 source file |
| West Kendall Baptist Hospital Miami, FL · (786) 467-2000 ASSAY OF MAGNESIUM | $176.80 | $272.00 | $2.76–$272.00 | 35% | Mar 30, 2026 source file |
| South Miami Hospital South Miami, FL · (786) 662-4000 ASSAY OF MAGNESIUM | $176.80 | $272.00 | $2.76–$272.00 | 35% | Mar 30, 2026 source file |
| Baptist Hospital of Miami Miami, FL · (786) 596-1960 ASSAY OF MAGNESIUM | $176.80 | $272.00 | $2.85–$272.00 | 35% | Mar 30, 2026 source file |
| Homestead Hospital Homestead, FL · (786) 243-8000 ASSAY OF MAGNESIUM | $176.80 | $272.00 | $2.76–$272.00 | 35% | Mar 30, 2026 source file |
| Bethesda Hospital Boynton Beach, FL · (561) 737-7733 ASSAY OF MAGNESIUM | $176.80 | $272.00 | $2.85–$272.00 | 35% | Mar 30, 2026 source file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FL · (954) 771-8000 HC Magnesium | $271.05 | $417.00 | $6.57–$417.00 | 35% | Mar 31, 2026 source file |
| Broward Health North Deerfield Beach, FL · (954) 786-6400 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Imperial Point Fort Lauderdale, FL · (954) 776-8500 HC ASSAY OF MAGNESIUM - MAGNESIUM 24HR URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health North Deerfield Beach, FL · (954) 786-6400 HC ASSAY OF MAGNESIUM - MAGNESIUM | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health North Deerfield Beach, FL · (954) 786-6400 HC ASSAY OF MAGNESIUM - MAGNESIUM URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health North Deerfield Beach, FL · (954) 786-6400 HC ASSAY OF MAGNESIUM - MAGNESIUM 24HR URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Imperial Point Fort Lauderdale, FL · (954) 776-8500 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Imperial Point Fort Lauderdale, FL · (954) 776-8500 HC ASSAY OF MAGNESIUM - MAGNESIUM URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Imperial Point Fort Lauderdale, FL · (954) 776-8500 HC ASSAY OF MAGNESIUM - MAGNESIUM | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Coral Springs Coral Springs, FL · (954) 344-3121 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Coral Springs Coral Springs, FL · (954) 344-3121 HC ASSAY OF MAGNESIUM - MAGNESIUM 24HR URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Coral Springs Coral Springs, FL · (954) 344-3121 HC ASSAY OF MAGNESIUM - MAGNESIUM URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Coral Springs Coral Springs, FL · (954) 344-3121 HC ASSAY OF MAGNESIUM - MAGNESIUM | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Medical Center Fort Lauderdale, FL · (954) 355-4400 HC ASSAY OF MAGNESIUM - MAGNESIUM URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Medical Center Fort Lauderdale, FL · (954) 355-4400 HC ASSAY OF MAGNESIUM - MAGNESIUM 24HR URINE | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Medical Center Fort Lauderdale, FL · (954) 355-4400 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Broward Health Medical Center Fort Lauderdale, FL · (954) 355-4400 HC ASSAY OF MAGNESIUM - MAGNESIUM | $341.50 | $341.50 | $4.02–$273.20 | — | Sep 15, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Magnesium Serum Quant | $594.30 | $849.00 | $6.70–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Magnesium Serum Quant | $594.30 | $849.00 | $7.10–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Magnesium - Urine | $594.30 | $849.00 | $7.10–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Magnesium | $594.30 | $849.00 | $6.70–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Magnesium Serum Quant | $594.30 | $849.00 | $7.10–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Magnesium | $594.30 | $849.00 | $7.10–$721.65 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Magnesium - Urine | $594.30 | $849.00 | $6.70–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital Miramar Miramar, FL · (954) 538-5000 HC Magnesium | $594.30 | $849.00 | $7.10–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital Pembroke Pembroke Pines, FL · (954) 962-9650 HC Magnesium - Urine | $594.30 | $849.00 | $7.10–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Magnesium Serum Quant | $594.30 | $849.00 | $6.70–$721.65 | 30% | May 27, 2026 source file |
| Memorial Regional Hospital Hollywood, FL · (954) 987-2000 HC Magnesium | $594.30 | $849.00 | $6.70–$721.65 | 30% | May 27, 2026 source file |
| Memorial Hospital West Pembroke Pines, FL · (954) 436-5000 HC Magnesium - Urine | $594.30 | $849.00 | $6.70–$721.65 | 30% | May 27, 2026 source file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FL · (954) 771-8000 HC Magnesium | $1,760.20 | — | $6.57–$216.00 | — | Mar 31, 2026 source file |
Outpatient: lowest $5.67, median $8.62, highest $14.30 — a 2.5× difference within the same market.
As an inpatient, the same code is billed by 16 facilities here, median $8.62. 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 13 of 17 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.
10 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 83735 ($43.50). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Memorial Hospital Pembroke Pembroke Pines, FLHC Magnesium 24-Hour Urine (With Creatinine)Aa Quest #19742x | $2.13 | file |
| Memorial Hospital West Pembroke Pines, FLHC Magnesium 24-Hour Urine (With Creatinine)Aa Quest #19742x | $2.13 | file |
| Memorial Regional Hospital Hollywood, FLHC Magnesium 24-Hour Urine (With Creatinine)Aa Quest #19742x | $2.13 | file |
| Memorial Hospital Miramar Miramar, FLHC Magnesium 24-Hour Urine (With Creatinine)Aa Quest #19742x | $2.13 | file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FLHC Warde 3400288 Magnesium Urine | $2.37 | file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FLHC Quest Magnesium Urine | $2.37 | file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FLHC Quest 15565 Magnesium 24 Hour Urine | $2.37 | file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FLHC Quest 14460 Magnesium Urine | $2.37 | file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FLHC Quest 6179 Magnesium Urine | $2.37 | file |
| Holy Cross Hospital-Ft. Lauderdale Ft. Lauderdale, FLHC Warde 3426900 Magnesium 24 Hour Urine | $3.29 | file |