Magnesium test cost in Chicago, IL — inpatient
In Chicago-Naperville-Elgin, IL-IN, 33 hospitals list a cash price for magnesium blood test as an inpatient: from $5.75 to $191.00, with a median of $30.00. The lowest listed price is at Uchicago Medicine AdventHealth Glenoaks and 3 other hospitals — $24.25 less than the median here. Across Illinois, the median is $48.60 at 65 hospitals.
Cash prices at 33 facilities across 23 cities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 17, 2025 and Apr 1, 2026.
Lowest$5.75Uchicago Medicine AdventHealth Glenoaks + 3 more
Median$30.00half pay less
Highest$191.00in this market
Difference33.2×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 Chicago-Naperville-Elgin, IL-IN.
median
Lowest $5.75Highest $191.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks lowest Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange lowest La Grange, IL · (708) 352-1200 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM RBC - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM URINE CALCULI RISK ASSESSMENT - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC MAGNESIUM SUPERSATURATION PROFILE, URINE - ARUP | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC ASSAY OF MAGNESIUM - MAGNESIUM IONIZED | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale lowest Hinsdale, IL · (630) 856-9000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM LEVEL | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM URINE RANDOM | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook lowest Bolingbrook, IL · (630) 312-5000 HC CVICU IONIZED MAGNESIUM POC | $5.75 | $23.00 | — | 75% | Apr 1, 2026 source file |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 83735 MAGNESIUM | $23.27 | $68.45 | $44.49 | 66% | Mar 17, 2025 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Magnesium, Urine | $29.00 | $29.00 | — | — | Apr 1, 2026 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$54.00 | 50% | Nov 4, 2025 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM SRDP | $30.00 | $60.00 | $26.22–$48.00 | 50% | Nov 4, 2025 source file |
| Uchicago Medicine AdventHealth La Grange La Grange, IL · (708) 352-1200 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale Hinsdale, IL · (630) 856-9000 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Glenoaks Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth La Grange La Grange, IL · (708) 352-1200 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Hinsdale Hinsdale, IL · (630) 856-9000 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Uchicago Medicine AdventHealth Bolingbrook Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM, URINE - ARUP | $31.25 | $125.00 | — | 75% | Apr 1, 2026 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM SERUM | $35.00 | $70.00 | $30.59–$56.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM SERUM | $35.00 | $70.00 | $30.59–$56.00 | 50% | Nov 4, 2025 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM SERUM | $37.50 | $75.00 | $32.78–$60.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM SERUM | $37.50 | $75.00 | $32.78–$60.00 | 50% | Nov 4, 2025 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM SERUM | $37.50 | $75.00 | $32.78–$60.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM SERUM | $40.00 | $80.00 | $34.96–$64.00 | 50% | Nov 4, 2025 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM SERUM | $40.00 | $80.00 | $34.96–$64.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM SERUM | $40.00 | $80.00 | $34.96–$64.00 | 50% | Nov 4, 2025 source file |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 Magnesium Level | $43.42 | $127.70 | $83.01 | 66% | Mar 17, 2025 source file |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 83735 MAGNESIUM | $43.42 | $127.70 | $83.01 | 66% | Mar 17, 2025 source file |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 Magnesium Level | $43.42 | $127.70 | $83.01 | 66% | Mar 17, 2025 source file |
| La Rabida Children's Hospital|LaRabida Childrens Hospital Chicago, IL · (773) 363-6700 MAGNESIUM, RANDOM URINE | $43.59 | $43.59 | — | — | Apr 1, 2026 source file |
| La Rabida Children's Hospital|LaRabida Childrens Hospital Chicago, IL · (773) 363-6700 24 URINE MG | $43.59 | $43.59 | — | — | Apr 1, 2026 source file |
| La Rabida Children's Hospital|LaRabida Childrens Hospital Chicago, IL · (773) 363-6700 AFT MAGNESIUM - STAT | $43.59 | $43.59 | — | — | Apr 1, 2026 source file |
| La Rabida Children's Hospital|LaRabida Childrens Hospital Chicago, IL · (773) 363-6700 MAGNESIUM | $43.59 | $43.59 | — | — | Apr 1, 2026 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$85.50 | 50% | Nov 4, 2025 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM URINE | $47.50 | $95.00 | $41.52–$76.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$90.00 | 50% | Nov 4, 2025 source file |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM, RBC'S | $50.00 | $100.00 | $43.70–$80.00 | 50% | Nov 4, 2025 source file |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM SERUM | $60.00 | $120.00 | $52.44–$96.00 | 50% | Nov 4, 2025 source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC MAGNESIUM-SERUM | $61.71 | $187.00 | $6.70–$27.24 | 67% | — source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC MAGNESIUM- RANDOM URINE | $61.71 | $187.00 | $6.70–$27.24 | 67% | — source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC MAGNESIUM - 24 HR URINE | $61.71 | $187.00 | $6.70–$27.24 | 67% | — source file |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC MAGNESIUM - RBC | $61.71 | $187.00 | $6.70–$27.24 | 67% | — source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Magnesium-Laf | $64.00 | $64.00 | — | — | Apr 1, 2026 source file |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM SERUM | $70.00 | $140.00 | $61.18–$112.00 | 50% | Nov 4, 2025 source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Magnesium Urine* | $71.50 | $110.00 | $17.93–$58.85 | 35% | — source file |
| NorthShore University HealthSystems Evanston Hospital Evanson, IL · (847) 570-2000 Magnesium Urine* | $71.50 | $110.00 | $17.93–$58.85 | 35% | — source file |
| NorthShore University HealthSystems Highland Park Hospital Highland Park, IL Magnesium Urine* | $71.50 | $110.00 | $17.93–$58.85 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Magnesium Urine* | $71.50 | $110.00 | $17.93–$58.85 | 35% | — source file |
| NorthShore University HealthSystems Highland Park Hospital Highland Park, IL Magnesium * | $76.70 | $118.00 | $19.23–$63.13 | 35% | — source file |
| NorthShore University HealthSystems Evanston Hospital Evanson, IL · (847) 570-2000 Magnesium * | $76.70 | $118.00 | $19.23–$63.13 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Magnesium * | $76.70 | $118.00 | $19.23–$63.13 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Magnesium * | $76.70 | $118.00 | $19.23–$63.13 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R Fecal Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Highland Park Hospital Highland Park, IL R Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Highland Park Hospital Highland Park, IL R Fecal Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R Fecal Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Evanston Hospital Evanson, IL · (847) 570-2000 R Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| NorthShore University HealthSystems Evanston Hospital Evanson, IL · (847) 570-2000 R Fecal Magnesium (P) | $79.95 | $123.00 | $20.05–$65.81 | 35% | — source file |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM SERUM | $80.00 | $160.00 | $69.92–$144.00 | 50% | Nov 4, 2025 source file |
| NorthShore University HealthSystems Evanston Hospital Evanson, IL · (847) 570-2000 R RBC Magnesium | $83.85 | $129.00 | $21.03–$69.02 | 35% | — source file |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R RBC Magnesium | $83.85 | $129.00 | $21.03–$69.02 | 35% | — source file |
| NorthShore University HealthSystems Highland Park Hospital Highland Park, IL R RBC Magnesium | $83.85 | $129.00 | $21.03–$69.02 | 35% | — source file |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R RBC Magnesium | $83.85 | $129.00 | $21.03–$69.02 | 35% | — source file |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Magnesium,Rbc&Plasma | $100.00 | $100.00 | — | — | Apr 1, 2026 source file |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb 24Hr.Ur Magnesium | $100.00 | $100.00 | — | — | Apr 1, 2026 source file |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Assay Of Magnesium | $100.00 | $100.00 | — | — | Apr 1, 2026 source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H ASSAY OF MAGNESIUM | $102.20 | $146.00 | $54.02–$3,678.00 | 30% | — source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H MAGNESIUM URINE 24-HOUR COLLECTION | $102.20 | $146.00 | $54.02–$3,678.00 | 30% | — source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H MAGNESIUM SERUM | $102.20 | $146.00 | $54.02–$3,678.00 | 30% | — source file |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H MAGNESIUM URINE RANDOM | $102.20 | $146.00 | $54.02–$3,678.00 | 30% | — source file |
| Endeavor Health Clinical Operations Highland Park, IL HB MAGNESIUM URINE* | $110.00 | $110.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB MAGNESIUM URINE* | $110.00 | $110.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB MAGNESIUM URINE* | $110.00 | $110.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB MAGNESIUM * | $118.00 | $118.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Clinical Operations Highland Park, IL HB MAGNESIUM * | $118.00 | $118.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB MAGNESIUM * | $118.00 | $118.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Clinical Operations Highland Park, IL HB R FECAL MAGNESIUM (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R FECAL MAGNESIUM (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R MAGNESIUM (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R FECAL MAGNESIUM (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R MAGNESIUM (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Magnesium | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Clinical Operations Highland Park, IL HB R MAGNESIUM (P) | $123.00 | $123.00 | — | — | Apr 1, 2026 source file |
| Endeavor Health Clinical Operations Highland Park, IL HB R RBC MAGNESIUM | $129.00 | $129.00 | — | — | Apr 1, 2026 source file |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R RBC MAGNESIUM | $129.00 | $129.00 | — | — | Apr 1, 2026 source file |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R RBC MAGNESIUM | $129.00 | $129.00 | — | — | Apr 1, 2026 source file |
| Edward Hospital Naperville, IL · (630) 527-3000 HC MAGNESIUM URINE | $131.00 | $131.00 | — | — | Apr 1, 2026 source file |
| Edward Hospital Naperville, IL · (630) 527-3000 HC MAGNESIUM | $131.00 | $131.00 | — | — | Apr 1, 2026 source file |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC MAGNESIUM URINE | $131.00 | $131.00 | — | — | Apr 1, 2026 source file |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC MAGNESIUM | $131.00 | $131.00 | — | — | Apr 1, 2026 source file |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Magnesium, Urine | $191.00 | $191.00 | — | — | Apr 1, 2026 source file |
| Uchicago Medicine Northwest Indiana Crown Point, IN · (312) 755-4706 HC MAGNESIUM | $191.00 | $191.00 | — | — | Apr 1, 2026 source file |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Magnesium | $191.00 | $191.00 | — | — | Apr 1, 2026 source file |
Inpatient: lowest $5.75, median $30.00, highest $191.00 — a 33.2× difference within the same market.
As an outpatient, the same code is billed by 51 facilities here, median $43.42 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 14 of 19 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 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.