Lab tests CPT 83735 Rhode Island Outpatient

Magnesium test cost in Rhode Island

In Rhode Island, 6 hospitals publish a cash price for magnesium blood test: from $6.00 to $72.00, with a median of $52.70. The lowest price is at Landmark Medical Center (Woonsocket). The highest price is 12.0× 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 23, 2026.

Lowest$6.00Landmark Medical Center
Median$52.70half pay less
Highest$72.00in Rhode Island
Lowest saves$46.70vs the median

Hospitals in Rhode Island, cheapest first

HospitalCash price List priceFile date
Landmark Medical Center lowest Woonsocket · Providence-Warwick, RI-MA Hc Assay Of Magnesium $6.00 $112.00 Sep 1, 2026
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Emma Pendleton Bradley Hospital East Providence · Providence-Warwick, RI-MA HC RBC MAGNESIUM SO $52.70 $52.70 —
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Newport Hospital Newport · Providence-Warwick, RI-MA HC RBC MAGNESIUM SO $52.70 $52.70 —
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Rhode Island Hospital Providence · Providence-Warwick, RI-MA HC RBC MAGNESIUM SO $52.70 $52.70 —
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The Miriam Hospital Providence · Providence-Warwick, RI-MA HC RBC MAGNESIUM SO $52.70 $52.70 —
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South County Health Wakefield · Providence-Warwick, RI-MA Magnesium $72.00 $120.00 —
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By metro area

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

Metro areaHospitals LowestMedian
Providence-Warwick, RI-MA 6 $6.00 $52.70

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.