Magnesium test cost in Memphis, TN — inpatient
In Memphis, TN-MS-AR, 12 hospitals list a cash price for magnesium blood test as an inpatient: from $6.24 to $53.60, with a median of $20.68. The lowest listed price is at Baptist Memorial Hospital-Tipton — $14.44 less than the median here. Across Tennessee, the median is $11.85 at 44 hospitals.
Cash prices at 12 facilities across 7 cities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 25, 2026; the hospital files themselves were last updated between Feb 27, 2026 and Feb 28, 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 Memphis, TN-MS-AR.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Baptist Memorial Hospital-Tipton lowest Covington, TN · (901) 476-2621 MAGNESIUM RBCS | $6.24 | $26.00 | $9.88–$23.40 | 76% | Feb 27, 2026 source file |
| Methodist Lebonheur Childrens Hosp Memphis, TN HC Assay of Magnesium - Magnesium | $10.34 | $47.00 | — | 78% | — source file |
| Methodist South Hospital Memphis, TN HC Assay of Magnesium - Magnesium | $20.68 | $94.00 | $2.81–$51.23 | 78% | — source file |
| Methodist Olive Branch Hospital Olive Branch, MS · (662) 932-9000 HC Assay of Magnesium - Magnesium | $20.68 | $94.00 | — | 78% | — source file |
| Methodist University Hospital Memphis, TN · (901) 516-8274 HC Assay of Magnesium - Magnesium | $20.68 | $94.00 | — | 78% | — source file |
| Methodist Lebonheur Germantown Hosp Germantown, TN HC Assay of Magnesium - Magnesium | $20.68 | $94.00 | $2.81–$51.23 | 78% | — source file |
| Methodist North Hospital Memphis, TN HC Assay of Magnesium - Magnesium | $20.68 | $94.00 | $2.81–$51.23 | 78% | — source file |
| Baptist Memorial Hospital-Crittenden West Memphis, AR · (870) 394-7800 MAGNESIUM RBCS | $37.95 | $253.00 | $96.14–$202.40 | 85% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Crittenden West Memphis, AR · (870) 394-7800 MAGNESIUM LEVEL | $40.20 | $268.00 | $101.84–$214.40 | 85% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Crittenden West Memphis, AR · (870) 394-7800 MAGNESIUM URINE RANDOM | $41.25 | $275.00 | $104.50–$220.00 | 85% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Crittenden West Memphis, AR · (870) 394-7800 MAGNESIUM URINE 24 HR | $41.25 | $275.00 | $104.50–$220.00 | 85% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Women's Memphis, TN MAGNESIUM RBCS | $53.13 | $253.00 | $96.14–$227.70 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Collierville Collierville, TN MAGNESIUM RBCS | $53.13 | $253.00 | $96.14–$227.70 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Memphis Memphis, TN · (901) 226-5000 MAGNESIUM RBCS | $53.13 | $253.00 | $96.14–$227.70 | 79% | Feb 28, 2026 source file |
| Baptist Memorial Hospital-DeSoto Southaven, MS · (662) 772-4000 MAGNESIUM LEVEL | $53.60 | $268.00 | $101.84–$241.20 | 80% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-DeSoto Southaven, MS · (662) 772-4000 MAGNESIUM URINE RANDOM | $55.00 | $275.00 | $104.50–$247.50 | 80% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-DeSoto Southaven, MS · (662) 772-4000 MAGNESIUM URINE 24 HR | $55.00 | $275.00 | $104.50–$247.50 | 80% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Women's Memphis, TN MAGNESIUM LEVEL | $56.28 | $268.00 | $101.84–$241.20 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Memphis Memphis, TN · (901) 226-5000 MAGNESIUM LEVEL | $56.28 | $268.00 | $101.84–$241.20 | 79% | Feb 28, 2026 source file |
| Baptist Memorial Hospital-Collierville Collierville, TN MAGNESIUM LEVEL | $56.28 | $268.00 | $101.84–$241.20 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Women's Memphis, TN MAGNESIUM URINE 24 HR | $57.75 | $275.00 | $104.50–$247.50 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Collierville Collierville, TN MAGNESIUM URINE RANDOM | $57.75 | $275.00 | $104.50–$247.50 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Collierville Collierville, TN MAGNESIUM URINE 24 HR | $57.75 | $275.00 | $104.50–$247.50 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Memphis Memphis, TN · (901) 226-5000 MAGNESIUM URINE RANDOM | $57.75 | $275.00 | $104.50–$247.50 | 79% | Feb 28, 2026 source file |
| Baptist Memorial Hospital-Women's Memphis, TN MAGNESIUM URINE RANDOM | $57.75 | $275.00 | $104.50–$247.50 | 79% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Memphis Memphis, TN · (901) 226-5000 MAGNESIUM URINE 24 HR | $57.75 | $275.00 | $104.50–$247.50 | 79% | Feb 28, 2026 source file |
| Baptist Memorial Hospital-Tipton Covington, TN · (901) 476-2621 MAGNESIUM LEVEL | $64.32 | $268.00 | $101.84–$241.20 | 76% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Tipton Covington, TN · (901) 476-2621 MAGNESIUM URINE 24 HR | $66.00 | $275.00 | $104.50–$247.50 | 76% | Feb 27, 2026 source file |
| Baptist Memorial Hospital-Tipton Covington, TN · (901) 476-2621 MAGNESIUM URINE RANDOM | $66.00 | $275.00 | $104.50–$247.50 | 76% | Feb 27, 2026 source file |
Inpatient: lowest $6.24, median $20.68, highest $53.60 — a 8.6× difference within the same market.
As an outpatient, the same code is billed by 12 facilities here, median $20.68 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 9 of 9 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 6 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.