Posted Price

Magnesium test at St. John's Riverside Hospital

CPT 83735 · Yonkers, NY

Cash price$145.35
Gross charge$171.00
Insurer rates$6.37 – $3,783.00

These are St. John's Riverside Hospital'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 82 New York hospitals we index that post a cash price for this service: lowest $5.03, median $25.94, highest $273.24. See every hospital.

Nearby hospitals, same service

HospitalDistanceCash priceGross chargeFile date
St. Joseph's Medical Center
Yonkers, NY
0.0 mi$6.70$76.002026-07-13
Montefiore Mount Vernon Hospital
Mount Vernon, NY
3.7 mi$59.15$91.002026-09-28
Englewood Hospital and Medical Center
Englewood, NJ
6.2 mi$11.80$118.002026-02-02
Jacobi Medical Center
Bronx, NY
7.2 mi$6.70$28.082026-09-05
Hackensack University Medical Center
Hackensack, NJ
9.5 mi$6.70$138.002025-12-31
Phelps Hospital
Sleepy Hollow, NY
9.5 mi$16.452026-03-31
Harlem Hospital Center
New York, NY
9.7 mi$6.70$28.082026-09-05
Valley Hospital
Paramus, NJ
9.9 mi$121.80$203.002026-05-06

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
ASSAY OF MAGNESIUM
line 8738
outpatient$145.35$171.00$6.37 – $3,783.00

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 St. John's Riverside Hospital prices