Posted Price

Magnesium test at Boston Medical Center

CPT 83735 · Boston, MA

Cash price$32.40
Gross charge$72.00
Insurer rates$5.80 – $512.54

These are Boston Medical Center's own posted figures from its standard-charges file dated March 13, 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

HospitalDistanceCash priceGross chargeFile date
Tufts Medical Center
Boston, MA
1.0 mi$16.80$24.002026-04-01
Brigham and Women's Hospital
Boston, MA
1.3 mi$80.25$107.002026-03-27
New England Baptist Hospital
Boston, MA
1.4 mi$71.00$71.002026-04-01
Massachusetts General Hospital
Boston, MA
1.8 mi$80.25$107.002026-03-27
Massachusetts Eye and Ear Infirmary -
Boston, MA
1.8 mi$136.50$182.002026-03-27
The Shriners' Hospital for Children - Boston
Boston, MA
1.8 mi$64.90$64.902026-03-17
Beth Israel Deaconess Medical Center
Boston, MA
1.8 mi$125.00$125.002026-04-01
Cambridge Health Alliance
Cambridge, MA
2.4 mi$38.00$38.002026-03-20

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 fileSettingCashGrossInsurer min – max
HC Chg Assay of Magnesium
line 1246
both$32.40$72.00$5.80 – $512.54

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 Boston Medical Center prices