Lab tests CPT 83735 Missouri Outpatient

Magnesium test cost in Missouri

In Missouri, 30 hospitals publish a cash price for Magnesium blood test: from $4.64 to $105.30, with a median of $36.63. The lowest price is at NKC Health (North Kansas City). The highest price is 22.7× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 83735. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 25, 2026.

Lowest$4.64NKC Health
Median$36.63half pay less
Highest$105.30in Missouri
Lowest saves$31.99vs the median

Hospitals in Missouri, cheapest first

HospitalCash price List priceFile date
NKC Health lowest North Kansas City · Kansas City, MO-KS SR MG URINE $4.64 $16.00 Mar 6, 2026
source file
St Joseph Medical Center Kansas City · Kansas City, MO-KS Hc Assay Of Magnesium $6.00 $359.13 Mar 17, 2026
source file
Ranken Jordan Home for Convalescent Crippled Children Hospital Maryland Heights · St. Louis, MO-IL Magnesium Level $7.92 $9.90 Apr 24, 2026
source file
Mercy Hospital Southeast Cape Girardeau · Cape Girardeau, MO-IL Stone Risk Ua Magnesium $18.75 $25.00 Jun 12, 2026
source file
Mercy Hospital Stoddard Bernie · Bernie, MO Assay of Magnesium $21.75 $29.00 Jun 12, 2026
source file
Mercy Hospital Stoddard Dexter · Dexter, MO Assay of Magnesium $21.75 $29.00 Jun 12, 2026
source file
Boone Hospital Center Columbia · Columbia, MO MAGNESIUM $23.56 $39.27 Apr 1, 2026
source file
Mercy Hospital Jefferson Festus · St. Louis, MO-IL Magnesium $24.05 $37.00 —
source file
Mercy Hospital Joplin dba Mercy Hospital Joplin Joplin · Joplin, MO-KS Magnesium $24.05 $37.00 —
source file
Mercy Hospitals East Communities dba Mercy Hospital St Louis Saint Louis · St. Louis, MO-IL Magnesium $24.05 $37.00 —
source file
Western Missouri Medical Center Warrensburg · Warrensburg, MO 83735 $28.00 $23.70 Dec 1, 2024
source file
Mercy Hospital South Saint Louis · St. Louis, MO-IL Magnesium RBC $29.25 $45.00 —
source file
Southeast Hospital dba Mercy Hospital Southeast Cape Girardeau · Cape Girardeau, MO-IL Stone Risk Ua Magnesium $31.85 $49.00 —
source file
Curators of the University of Missouri Columbia · Columbia, MO MAGNESIUM IONIZED P28620270 $33.45 $55.75 Dec 15, 2025
source file
Mercy Perry Perryville · Perryville, MO Magnesium Stool $35.75 $55.00 —
source file
Mercy Hospital Perry Perryville · Perryville, MO Assay of Magnesium $37.50 $50.00 Jun 12, 2026
source file
Children's Mercy Hospital Kansas City · Kansas City, MO-KS MAGNESIUM MAIN $37.92 $79.00 —
source file
John Fitzgibbon Memorial Hospital INC Marshall · Marshall, MO Magnesium level $40.46 $50.58 Feb 2, 2026
source file
Shriners Childrens - St Louis Saint Louis · St. Louis, MO-IL ASSAY OF MAGNESIUM $52.70 $52.70 —
source file
Mercy Hospital Lebanon dba Mercy Hospital Lebanon B Lebanon · Lebanon, MO Magnesium $58.50 $90.00 —
source file
Mercy Hospitals East Communities dba Mercy Hospital Washington Washington · St. Louis, MO-IL Magnesium Urine $60.45 $93.00 —
source file
Mercy Hospital Carthage Carthage · Joplin, MO-KS Stone Risk Ua Magnesium $65.00 $100.00 —
source file
Mercy Hospital Aurora Aurora · Aurora, MO Magnesium $68.25 $105.00 —
source file
Mercy Hospital Cassville Cassville · Cassville, MO Magnesium $68.25 $105.00 —
source file
Mercy St. Francis Hospital Mountain View · West Plains, MO Magnesium Urine $68.25 $105.00 —
source file
SoutheastHEALTH Center of Stoddard County LLC dba Mercy Hospital Stoddard Dexter · Dexter, MO Magnesium $73.45 $113.00 —
source file
Mercy Hospital Lincoln Troy · St. Louis, MO-IL Magnesium 24 Hr Urine $76.70 $118.00 —
source file
Freeman Health System - Freeman West Joplin · Joplin, MO-KS MAGNESIUM $92.61 $231.53 Sep 1, 2026
source file
Mercy Hospital Springfield Springfield · Springfield, MO Magnesium Urine $105.30 $162.00 —
source file
Mercy Hospital Springfield Ozark · Springfield, MO Magnesium Urine $105.30 $162.00 —
source file

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro areaHospitals LowestMedian
St. Louis, MO-IL 7 $7.92 $29.25
Joplin, MO-KS 3 $24.05 $65.00
Kansas City, MO-KS 3 $4.64 $6.00
Cape Girardeau, MO-IL 2 $18.75 $25.30
Columbia, MO 2 $23.56 $28.50
Dexter, MO 2 $21.75 $47.60
Perryville, MO 2 $35.75 $36.62
Springfield, MO 2 $105.30 $105.30
Aurora, MO 1 $68.25 $68.25
Bernie, MO 1 $21.75 $21.75
Cassville, MO 1 $68.25 $68.25
Lebanon, MO 1 $58.50 $58.50
Marshall, MO 1 $40.46 $40.46
Warrensburg, MO 1 $28.00 $28.00
West Plains, MO 1 $68.25 $68.25

What it is

A magnesium test measures the level of magnesium in the blood. Doctors order it for muscle cramps or weakness, an irregular heartbeat, low potassium or calcium that does not correct, and for people on diuretics, long-term acid-reducing drugs or with kidney disease.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

Magnesium blood test in other states

Median cash price across the state's hospitals.