Posted Price

Magnesium test at Presence Saint Joseph Hospital - Chicago

CPT 83735 · Chicago, IL

Cash price$61.71
Gross charge$187.00
Insurer rates$6.70 – $27.24

These are Presence Saint Joseph Hospital - Chicago's own posted figures from its standard-charges file dated January 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.

Across 5 Illinois hospitals we index that post a cash price for this service: lowest $39.75, median $56.20, highest $125.40. See every hospital.

Nearby hospitals, same service

HospitalDistanceCash priceGross chargeFile date
Saint Francis Hospital-Evanston
Evanston, IL
6.5 mi$39.75$75.002026-01-01
Shriners Hospital for Children
Chicago, IL
8.1 mi$56.20$56.202026-03-18
Saint Joseph Hospital-Elgin
Elgin, IL
34.6 mi$51.06$138.002026-01-01
Saint Joseph Medical Center
Joliet, IL
36.5 mi$125.40$209.002026-01-01
Huron Valley-Sinai Hospital
Commerce Township, MI
216.3 mi$105.00$140.002026-05-20
Sinai-Grace Hospital
Detroit, MI
230.6 mi$34.50$46.002026-04-08
Ascension Providence Rochester Hospital
Rochester, MI
236.7 mi$57.33$159.252026-01-01
Harper University Hospital
Detroit, MI
236.9 mi$126.00$168.002026-09-02

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 MAGNESIUM-SERUM
line 284272
outpatient$61.71$187.00$6.70 – $27.24
HC MAGNESIUM-SERUM
line 284276
both$61.71$187.00$6.70 – $27.24
HC MAGNESIUM- RANDOM URINE
line 284279
outpatient$61.71$187.00$6.70 – $27.24
HC MAGNESIUM- RANDOM URINE
line 284283
both$61.71$187.00$6.70 – $27.24
HC MAGNESIUM - 24 HR URINE
line 284286
outpatient$61.71$187.00$6.70 – $27.24
HC MAGNESIUM - 24 HR URINE
line 284290
both$61.71$187.00$6.70 – $27.24
HC MAGNESIUM - RBC
line 285466
outpatient$61.71$187.00$6.70 – $27.24

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 Presence Saint Joseph Hospital - Chicago prices