Magnesium test at Tufts Medical Center
CPT 83735 · Boston, MA
These are Tufts Medical Center's own posted figures from its standard-charges file dated April 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 22 Massachusetts hospitals we index that post a cash price for this service: lowest $12.78, median $47.13, highest $291.00. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Massachusetts General Hospital Boston, MA | 1.0 mi | $80.25 | $107.00 | 2026-03-27 |
| Massachusetts Eye and Ear Infirmary - Boston, MA | 1.0 mi | $136.50 | $182.00 | 2026-03-27 |
| The Shriners' Hospital for Children - Boston Boston, MA | 1.0 mi | $64.90 | $64.90 | 2026-03-17 |
| Boston Medical Center Boston, MA | 1.0 mi | $32.40 | $72.00 | 2026-03-13 |
| Brigham and Women's Hospital Boston, MA | 1.9 mi | $80.25 | $107.00 | 2026-03-27 |
| Beth Israel Deaconess Medical Center Boston, MA | 2.2 mi | $125.00 | $125.00 | 2026-04-01 |
| New England Baptist Hospital Boston, MA | 2.2 mi | $71.00 | $71.00 | 2026-04-01 |
| Cambridge Health Alliance Cambridge, MA | 2.3 mi | $38.00 | $38.00 | 2026-03-20 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 83735 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| HC Assay of Magnesium - Magnesium line 35579 | both | $16.80 | $24.00 | $6.30 – $29.07 |
| HC Assay of Magnesium - Magnesium RBC line 35581 | both | $16.80 | $24.00 | $6.30 – $29.07 |
| HC Assay of Magnesium - Magnesium Urine line 35583 | both | $16.80 | $24.00 | $6.30 – $29.07 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Tufts Medical Center prices