Magnesium test cost in Chicago, IL
In Chicago-Naperville-Elgin, IL-IN, 63 hospitals list a cash price for magnesium blood test: from $5.50 to $217.99, with a median of $39.10. The lowest listed price is at Roseland Community Hospital — $33.60 less than the median here. Across Illinois, the median is $68.63 at 117 hospitals.
- The median here, $39.10, is 6% below the US median of $41.60.
- That is 5.8× Medicare's 2026 national rate for the same service ($6.70).
- 12 of 63 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 63 facilities across 44 cities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 10, 2026; the hospital files themselves were last updated between Jan 1, 2025 and Nov 6, 2026.
Lowest$5.50Roseland Community Hospital
Median$39.10half of hospitals charge less
Highest$217.99in this market
Difference39.6×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 $5.50Highest $217.99
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Roseland Community Hospital lowest Chicago, IL · (773) 995-3000 Magnesium level File of Jul 1, 2026 · source file | $5.50 | $53.00 | $5.50–$58.30 | 90% |
| Uchicago Medicine AdventHealth Bolingbrook Bolingbrook, IL · (630) 312-5000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC+7 more lines at this price File of Apr 1, 2026 · source file | $5.75 | $23.00 | — | 75% |
| Uchicago Medicine AdventHealth Hinsdale Hinsdale, IL · (630) 856-9000 HC MAGNESIUM LEVEL+7 more lines at this price File of Apr 1, 2026 · source file | $5.75 | $23.00 | — | 75% |
| Uchicago Medicine AdventHealth Glenoaks Glendale Heights, IL · (630) 545-8000 HC ASSAY OF MAGNESIUM - MAGNESIUM RBC+7 more lines at this price File of Apr 1, 2026 · source file | $5.75 | $23.00 | — | 75% |
| Uchicago Medicine AdventHealth La Grange La Grange, IL · (708) 352-1200 HC MAGNESIUM RBC - ARUP+7 more lines at this price File of Apr 1, 2026 · source file | $5.75 | $23.00 | — | 75% |
| Saint Francis Hospital Evanston, IL · (847) 316-4000 HC ASSAY OF MAGNESIUM File of Sep 1, 2026 · source file | $6.00 | $187.00 | $4.02–$155.21 | 97% |
| Mercy Medical Center Aurora, IL · (630) 859-2222 MAGNESIUM, RANDOM URINE+3 more lines at this price File of Sep 1, 2026 · source file | $6.00 | $240.00 | $4.02–$240.00 | 98% |
| Saint Joseph Medical Center - Joliet Joliet, IL · (815) 725-7133 MAGNESIUM+4 more lines at this price File of Sep 1, 2026 · source file | $6.00 | $262.00 | $3.80–$262.00 | 98% |
| Gottlieb Memorial Hospital Melrose Park, IL · (708) 681-3200 Magnesium (Qurrsk) File of Mar 31, 2026 · source file | $11.02 | $58.00 | $24.71–$48.60 | 81% |
| MacNeal Hospital Berwyn, IL · (708) 783-9100 Magnesium (Qurrsk) File of Mar 31, 2026 · source file | $11.02 | $58.00 | $11.02–$80.33 | 81% |
| John H. Stroger, Jr. Hospital Chicago, IL · (312) 864-6000 MAGNESIUM SERUM File of Apr 1, 2026 · source file | $11.90 | $17.00 | $1.88–$17.19 | 30% |
| Loyola University Medical Center Maywood, IL · (708) 216-9000 Magnesium (Qurrsk) File of Mar 31, 2026 · source file | $13.34 | $58.00 | $29.00–$61.13 | 77% |
| MacNeal Hospital Berwyn, IL · (708) 783-9100 Magnesium Oncology (Oncmgb)+1 more line at this price File of Mar 31, 2026 · source file | $14.63 | $77.00 | $1.15–$106.65 | 81% |
| Gottlieb Memorial Hospital Melrose Park, IL · (708) 681-3200 Magnesium Oncology (Oncmgb)+1 more line at this price File of Mar 31, 2026 · source file | $14.63 | $77.00 | $32.80–$64.53 | 81% |
| MacNeal Hospital Berwyn, IL · (708) 783-9100 Magnesium (Qstone) File of Mar 31, 2026 · source file | $17.10 | $90.00 | $1.15–$9.11 | 81% |
| Gottlieb Memorial Hospital Melrose Park, IL · (708) 681-3200 Magnesium (Qstone) File of Mar 31, 2026 · source file | $17.10 | $90.00 | $38.34–$75.42 | 81% |
| Loyola University Medical Center Maywood, IL · (708) 216-9000 Magnesium Oncology (Oncmgb)+1 more line at this price File of Mar 31, 2026 · source file | $17.71 | $77.00 | $38.50–$81.16 | 77% |
| Loyola University Medical Center Maywood, IL · (708) 216-9000 Magnesium (Qstone) File of Mar 31, 2026 · source file | $20.70 | $90.00 | $45.00–$94.86 | 77% |
| Franciscan Health Munster Munster, IN · (219) 922-4200 Magnesium 256 File of Jan 1, 2026 · source file | $21.09 | $99.00 | $5.29–$109.00 | 79% |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 83735 MAGNESIUM File of Mar 17, 2025 · source file | $23.27 | $68.45 | $6.50–$44.49 | 66% |
| MacNeal Hospital Berwyn, IL · (708) 783-9100 Magnesium (Mg/Umg/Rumg) File of Mar 31, 2026 · source file | $25.08 | $132.00 | $1.15–$9.11 | 81% |
| Gottlieb Memorial Hospital Melrose Park, IL · (708) 681-3200 Magnesium (Mg/Umg/Rumg) File of Mar 31, 2026 · source file | $25.08 | $132.00 | $56.23–$110.62 | 81% |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Magnesium, Urine File of Apr 1, 2026 · source file | $29.00 | $29.00 | — | — |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.00 | 50% |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.00 | 50% |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$54.00 | 50% |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$53.40 | 50% |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$58.44 | 50% |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.00 | 50% |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.00 | 50% |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.00 | 50% |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM SRDP File of Nov 6, 2026 · source file | $30.00 | $60.00 | $5.95–$53.40 | 50% |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.00 | 50% |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM SRDP File of Nov 3, 2026 · source file | $30.00 | $60.00 | $5.95–$48.84 | 50% |
| Loyola University Medical Center Maywood, IL · (708) 216-9000 Magnesium (Mg/Umg/Rumg) File of Mar 31, 2026 · source file | $30.36 | $132.00 | $6.41 | 77% |
| Uchicago Medicine AdventHealth Bolingbrook Bolingbrook, IL · (630) 312-5000 HC MAGNESIUM, URINE - ARUP File of Apr 1, 2026 · source file | $31.25 | $125.00 | — | 75% |
| Uchicago Medicine AdventHealth Hinsdale Hinsdale, IL · (630) 856-9000 HC MAGNESIUM, URINE - ARUP File of Apr 1, 2026 · source file | $31.25 | $125.00 | — | 75% |
| Uchicago Medicine AdventHealth La Grange La Grange, IL · (708) 352-1200 HC MAGNESIUM, URINE - ARUP File of Apr 1, 2026 · source file | $31.25 | $125.00 | — | 75% |
| Uchicago Medicine AdventHealth Glenoaks Glendale Heights, IL · (630) 545-8000 HC MAGNESIUM, URINE - ARUP File of Apr 1, 2026 · source file | $31.25 | $125.00 | — | 75% |
| Mercyhealth Crystal Lake Hospital & Medical Center Crystal Lake, IL · (792) 220-5500 CHG ASSAY OF MAGNESIUM File of Mar 1, 2026 · source file | $31.42 | $41.90 | — | 25% |
| Franciscan Health Dyer Dyer, IN · (219) 865-2141 Magnesium 256 File of Jan 1, 2026 · source file | $33.75 | $125.00 | $6.00–$109.00 | 73% |
| Franciscan Health Crown Point Crown Point, IN · (219) 757-6100 Magnesium 256 File of Jan 1, 2026 · source file | $35.86 | $139.00 | $139.00 | 74% |
| Methodist Hospital-Southlake Merrillville, IN · (219) 886-4000 HC Magnesium File of Aug 18, 2026 · source file | $38.50 | $55.00 | $6.70–$48.95 | 30% |
| The Methodist Hospitals Gary, IN · (219) 886-4000 HC Magnesium File of Aug 18, 2026 · source file | $38.50 | $55.00 | $6.70–$48.95 | 30% |
| Humboldt Park Health Chicago, IL · (773) 292-8200 Magnesium level File of Sep 29, 2026 · source file | $39.10 | $139.65 | $46.08–$146.63 | 72% |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 Magnesium Serum+3 more lines at this price File of Apr 1, 2026 · source file | $40.23 | $149.00 | $5.91–$125.16 | 73% |
| Franciscan Health Rensselaer Rensselaer, IN · (219) 866-5141 Magnesium 259+1 more line at this price File of Jan 1, 2026 · source file | $43.32 | $121.00 | $6.00–$96.80 | 64% |
| Resilience Healthcare West Suburban Medical Center Oak Park, IL · (708) 383-6200 83735 MAGNESIUM+1 more line at this price File of Mar 17, 2025 · source file | $43.42 | $127.70 | $6.50–$83.01 | 66% |
| Louis A Weiss Memorial Hospital Chicago, IL · (773) 878-8700 Magnesium Level File of Mar 17, 2025 · source file | $43.42 | $127.70 | $6.50–$83.01 | 66% |
| Northwest Health - Porter Valparaiso, IN · (219) 983-8300 Magnesium Red Blood Cell - Send Out to NQ CQ File of Apr 1, 2026 · source file | $43.47 | $161.00 | $5.91–$135.24 | 73% |
| La Rabida Children's Hospital Chicago, IL · (773) 363-6700 MAGNESIUM+3 more lines at this price File of Apr 1, 2026 · source file | $43.59 | $43.59 | — | — |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM URINE+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$81.40 | 50% |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM URINE+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$80.00 | 50% |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM SERUM+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$80.00 | 50% |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM URINE+1 more line at this price File of Nov 6, 2026 · source file | $50.00 | $100.00 | $5.95–$89.00 | 50% |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM URINE+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$80.00 | 50% |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM URINE+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$80.00 | 50% |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM SERUM+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$97.40 | 50% |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM SERUM+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$89.00 | 50% |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM SERUM+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$90.00 | 50% |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM URINE+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$80.00 | 50% |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM URINE+1 more line at this price File of Nov 3, 2026 · source file | $50.00 | $100.00 | $5.95–$80.00 | 50% |
| Mercyhealth Hospital & Medical Center - Harvard Harvard, IL · (815) 943-5431 CHG ASSAY OF MAGNESIUM File of Mar 1, 2026 · source file | $51.86 | $69.15 | — | 25% |
| Advocate Lutheran General Hospital Park Ridge, IL · (847) 723-2210 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$93.45 | 50% |
| Advocate Childrens Hospital Park Ridge Park Ridge, IL MAGNESIUM, RBC'S File of Nov 6, 2026 · source file | $52.50 | $105.00 | $5.95–$93.45 | 50% |
| Advocate Childrens Hospital Oak Lawn Oak Lawn, IL MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$84.00 | 50% |
| Advocate Christ Medical Center Oak Lawn, IL · (708) 684-8000 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$84.00 | 50% |
| Advocate Condell Medical Center Libertyville, IL · (847) 362-2900 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$84.00 | 50% |
| Advocate South Suburban Hospital Hazel Crest, IL MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$102.27 | 50% |
| Advocate Good Samaritan Hospital Downers Grove, IL · (630) 275-5900 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$84.00 | 50% |
| Advocate Illinois Masonic Medical Center Chicago, IL · (773) 975-1600 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$85.47 | 50% |
| Advocate Sherman Hospital Elgin, IL · (847) 742-9800 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$94.50 | 50% |
| Advocate Trinity Hospital Chicago, IL · (773) 967-5002 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$84.00 | 50% |
| Advocate Good Shepherd Hospital Barrington, IL · (847) 381-9600 MAGNESIUM, RBC'S File of Nov 3, 2026 · source file | $52.50 | $105.00 | $5.95–$84.00 | 50% |
| Shriners Childrens - Chicago Chicago, IL · (773) 622-5400 MAGNESIUM LEVEL File of Mar 19, 2026 · source file | $57.50 | $57.50 | $5.96–$13.77 | — |
| Presence Saint Joseph Hospital - Chicago Chicago, IL · (773) 665-3000 HC MAGNESIUM - 24 HR URINE+7 more lines at this price File of Jan 1, 2026 · source file | $61.71 | $187.00 | $6.70–$27.24 | 67% |
| Morris Hospital Morris, IL · (815) 942-2932 Magnesium level File of Oct 27, 2026 · source file | $62.56 | $260.00 | $112.32–$267.80 | 76% |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Magnesium-Laf File of Apr 1, 2026 · source file | $64.00 | $64.00 | — | — |
| Community First Medical Center Chicago, IL · (773) 282-7000 Magnesium level File of Apr 1, 2026 · source file | $68.63 | $137.25 | $5.34–$137.25 | 50% |
| Loretto Hospital Chicago, IL · (773) 626-4300 MAGNESIUM File of Nov 5, 2026 · source file | $69.46 | $115.77 | $69.46–$115.77 | 40% |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Magnesium Urine* File of Jan 1, 2025 · source file | $71.50 | $110.00 | $14.85–$60.06 | 35% |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Magnesium Urine* File of Jan 1, 2025 · source file | $71.50 | $110.00 | $14.85–$60.06 | 35% |
| The Methodist Hospitals Gary, IN · (219) 886-4000 Sr/Mg File of Aug 18, 2026 · source file | $74.20 | $106.00 | $6.70–$94.34 | 30% |
| Methodist Hospital-Southlake Merrillville, IN · (219) 886-4000 Sr/Mg File of Aug 18, 2026 · source file | $74.20 | $106.00 | $6.70–$94.34 | 30% |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL Magnesium * File of Jan 1, 2025 · source file | $76.70 | $118.00 | $15.93–$64.43 | 35% |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL Magnesium * File of Jan 1, 2025 · source file | $76.70 | $118.00 | $15.93–$64.43 | 35% |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R Fecal Magnesium (P)+1 more line at this price File of Jan 1, 2025 · source file | $79.95 | $123.00 | $16.61–$67.16 | 35% |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R Magnesium (P)+1 more line at this price File of Jan 1, 2025 · source file | $79.95 | $123.00 | $16.61–$67.16 | 35% |
| Northwestern Medicine Delnor Hospital Geneva, IL · (630) 208-3000 HB Ref Kidney Stone Risk Assessr, Magnesium (Q)+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $17.28–$116.00 | 30% |
| Palos Community Hospital Palos Heights, IL · (708) 923-4000 HB Ref Magnesium, Urine (Gva)+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $18.56–$116.00 | 30% |
| Northwestern Medicine Kishwaukee Hospital DeKalb, IL · (815) 756-1521 HB Ref Micronutrients, Mineral/Element Panel, Magnesium (Q)+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $21.23–$116.00 | 30% |
| Northwestern Memorial Hospital Chicago, IL · (312) 926-2000 HB Ref Micronutrients, Mineral/Element Panel, Magnesium (Q)+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $22.50–$116.00 | 30% |
| Northwestern Medicine Valley West Hospital Sandwich, IL · (815) 786-8484 HB Ref Magnesium, Urine+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $22.04–$116.00 | 30% |
| Northwestern Medicine McHenry Hospital McHenry, IL · (815) 344-5000 HB Ref Micronutrients, Mineral/Element Panel, Magnesium (Q)+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $22.39–$116.00 | 30% |
| Northwestern Lake Forest Hospital Lake Forest, IL · (847) 234-5600 HB Ref Genova Panel, Magnesium RBC (Gva)+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $19.26–$116.00 | 30% |
| Northwestern Medicine Central DuPage Hospital Winfield, IL · (630) 682-1600 HB Ref Magnesium, Urine+18 more lines at this price File of Apr 1, 2026 · source file | $81.20 | $116.00 | $8.00–$116.00 | 30% |
| NorthShore University HealthSystems Skokie Hospital Skokie, IL R RBC Magnesium File of Jan 1, 2025 · source file | $83.85 | $129.00 | $17.42–$70.43 | 35% |
| NorthShore University HealthSystems Glenbrook Hospital Glenview, IL R RBC Magnesium File of Jan 1, 2025 · source file | $83.85 | $129.00 | $17.42–$70.43 | 35% |
| Northwest Community Hospital Arlington Heights, IL · (847) 618-1000 Hb Assay Of Magnesium+2 more lines at this price File of Apr 1, 2026 · source file | $100.00 | $100.00 | — | — |
| Ann & Robert H. Lurie Children's Hospital of Chicago Chicago, IL · (312) 227-4000 H MAGNESIUM URINE RANDOM+3 more lines at this price File of Sep 1, 2026 · source file | $102.20 | $146.00 | $24.82–$138.70 | 30% |
| The Methodist Hospitals Gary, IN · (219) 886-4000 Magnesium File of Aug 18, 2026 · source file | $107.80 | $154.00 | $6.70–$137.06 | 30% |
| Methodist Hospital-Southlake Merrillville, IN · (219) 886-4000 Magnesium File of Aug 18, 2026 · source file | $107.80 | $154.00 | $6.70–$137.06 | 30% |
| Jackson Park Hospital Foundation Chicago, IL · (773) 947-7500 MAGNESIUM, URINE RANDOM File of Dec 26, 2025 · source file | $107.85 | $134.81 | — | 20% |
| Endeavor Health Highland Park Hospital Highland Park, IL HB MAGNESIUM URINE* File of Apr 1, 2026 · source file | $110.00 | $110.00 | — | — |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB MAGNESIUM URINE* File of Apr 1, 2026 · source file | $110.00 | $110.00 | — | — |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB MAGNESIUM URINE* File of Apr 1, 2026 · source file | $110.00 | $110.00 | — | — |
| Jackson Park Hospital Foundation Chicago, IL · (773) 947-7500 MAGNESIUM RBC File of Dec 26, 2025 · source file | $113.70 | $142.12 | — | 20% |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB MAGNESIUM * File of Apr 1, 2026 · source file | $118.00 | $118.00 | — | — |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB MAGNESIUM * File of Apr 1, 2026 · source file | $118.00 | $118.00 | — | — |
| Endeavor Health Highland Park Hospital Highland Park, IL HB MAGNESIUM * File of Apr 1, 2026 · source file | $118.00 | $118.00 | — | — |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R FECAL MAGNESIUM (P)+1 more line at this price File of Apr 1, 2026 · source file | $123.00 | $123.00 | — | — |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R FECAL MAGNESIUM (P)+1 more line at this price File of Apr 1, 2026 · source file | $123.00 | $123.00 | — | — |
| Endeavor Health Highland Park Hospital Highland Park, IL HB R MAGNESIUM (P)+1 more line at this price File of Apr 1, 2026 · source file | $123.00 | $123.00 | — | — |
| The University of Chicago Medical Center Chicago, IL · (773) 702-9785 Hc Magnesium File of Apr 1, 2026 · source file | $123.00 | $123.00 | — | — |
| Northshore University Healthsystem - Evanston Hospital Evanston, IL · (847) 570-2000 HB R RBC MAGNESIUM File of Apr 1, 2026 · source file | $129.00 | $129.00 | — | — |
| Endeavor Health Highland Park Hospital Highland Park, IL HB R RBC MAGNESIUM File of Apr 1, 2026 · source file | $129.00 | $129.00 | — | — |
| Swedish Covenant Health Chicago, IL · (773) 878-8200 HB R RBC MAGNESIUM File of Apr 1, 2026 · source file | $129.00 | $129.00 | — | — |
| Elmhurst Memorial Hospital Elmhurst, IL · (331) 221-1000 HC MAGNESIUM+1 more line at this price File of Apr 1, 2026 · source file | $131.00 | $131.00 | — | — |
| Edward Hospital Naperville, IL · (630) 527-3000 HC MAGNESIUM URINE+1 more line at this price File of Apr 1, 2026 · source file | $131.00 | $131.00 | — | — |
| Jackson Park Hospital Foundation Chicago, IL · (773) 947-7500 MAGNESIUM File of Dec 26, 2025 · source file | $157.17 | $196.46 | — | 20% |
| Ingalls Memorial Hospital Harvey, IL · (708) 333-2300 Hc Magnesium+1 more line at this price File of Apr 1, 2026 · source file | $191.00 | $191.00 | — | — |
| Uchicago Medicine Northwest Indiana Crown Point, IN · (312) 755-4706 HC MAGNESIUM File of Apr 1, 2026 · source file | $191.00 | $191.00 | — | — |
| Vista Medical Center East Waukegan, IL · (847) 360-3000 MAGNESIUM File of Mar 31, 2025 · source file | $217.99 | $217.99 | $6.70–$30.74 | — |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
Outpatient: lowest $5.50, median $39.10, highest $217.99 — a 39.6× difference within the same market.
As an inpatient, the same code is billed by 41 facilities here, median $33.75. 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 41 of 46 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 5 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 magnesium test is, what the price covers and why prices differ: Magnesium test explained.
2 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 83735 ($36.96). 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.
| Hospital | Cash price | File |
|---|---|---|
| Loyola University Medical Center Maywood, ILEwc - Lab Magnesium | $0.01 | file |
| Gottlieb Memorial Hospital Melrose Park, ILEwc - Lab Magnesium | $0.01 | file |
File Link to the hospital's own price file.