Posted Price

Magnesium test at Massachusetts Eye and Ear Infirmary -

CPT 83735 · Boston, MA

Cash price$136.50
Gross charge$182.00
Insurer rates$6.70 – $132.86

These are Massachusetts Eye and Ear Infirmary -'s own posted figures from its standard-charges file dated March 27, 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
Massachusetts General Hospital
Boston, MA
0.0 mi$80.25$107.002026-03-27
The Shriners' Hospital for Children - Boston
Boston, MA
0.0 mi$64.90$64.902026-03-17
Tufts Medical Center
Boston, MA
1.0 mi$16.80$24.002026-04-01
Boston Medical Center
Boston, MA
1.8 mi$32.40$72.002026-03-13
Cambridge Health Alliance
Cambridge, MA
1.8 mi$38.00$38.002026-03-20
Beth Israel Deaconess Medical Center
Boston, MA
2.2 mi$125.00$125.002026-04-01
Brigham and Women's Hospital
Boston, MA
2.2 mi$80.25$107.002026-03-27
New England Baptist Hospital
Boston, MA
2.7 mi$71.00$71.002026-04-01

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
Magnesium
line 3690
both$136.50$182.00$6.70 – $132.86
Magnesium
line 3693
outpatient$136.50$182.00$19.45 – $941.10

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 Massachusetts Eye and Ear Infirmary - prices