Magnesium test cost in Portland, OR — inpatient
In Portland-Vancouver-Hillsboro, OR-WA, 11 hospitals list a cash price for magnesium blood test as an inpatient: from $4.74 to $30.00, with a median of $28.05. The lowest listed price is at Legacy Good Samaritan Medical Center and 4 other hospitals — $23.31 less than the median here. Across Oregon, the median is $30.00 at 39 hospitals.
Cash prices at 11 facilities across 9 cities for code 83735, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Lowest$4.74Legacy Good Samaritan Medical Center + 4 more
Median$28.05half pay less
Highest$30.00in this market
Difference6.3×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Portland-Vancouver-Hillsboro, OR-WA.
median
Lowest $4.74Highest $81.25
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Legacy Good Samaritan Medical Center lowest Portland, OR · (503) 413-7682 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center lowest Gresham, OR · (503) 674-1122 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center lowest Tualatin, OR · (503) 692-1212 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR · (503) 413-2200 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center lowest Portland, OR · (503) 413-7682 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center lowest Vancouver, WA · (360) 487-1000 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR · (503) 413-2200 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center lowest Portland, OR · (503) 413-2200 CHG ASSAY OF MAGNESIUM | $4.74 | $7.29 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA · (360) 487-1000 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR · (503) 674-1122 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR · (503) 692-1212 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC RBC MAGNESIUM | $15.60 | $24.00 | — | 35% | Apr 1, 2026 source file |
| Kaiser Sunnyside Medical Center Clackamas, OR · (503) 652-2880 ASSAY OF MAGNESIUM | $28.05 | $33.00 | $8.00–$26.86 | 15% | — source file |
| Kaiser Foundation Hospital - Westside Hillsboro, OR · (971) 310-0100 ASSAY OF MAGNESIUM | $28.05 | $33.00 | $8.00–$26.86 | 15% | — source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC MAGNESIUM URINE (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC ASSAY OF MAGNESIUM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC ASSAY OF MAGNESIUM CDM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC MAGNESIUM (RBC) (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC MAGNESIUM QUANT URINE | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC ASSAY OF MAGNESIUM LAB | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC ASSAY OF MAGNESIUM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC ASSAY OF MAGNESIUM CDM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Newberg Medical Center Newberg, OR · (503) 537-1555 HC MAGNESIUM (RBC) (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC MAGNESIUM URINE (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC MAGNESIUM QUANT URINE | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY OF MAGNESIUM LAB | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY OF MAGNESIUM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY OF MAGNESIUM CDM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC MAGNESIUM (RBC) (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC MAGNESIUM URINE (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC MAGNESIUM QUANT URINE | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY OF MAGNESIUM LAB | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY OF MAGNESIUM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC ASSAY OF MAGNESIUM CDM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Portland Medical Center Portland, OR · (503) 215-1111 HC MAGNESIUM (RBC) (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC MAGNESIUM URINE (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC MAGNESIUM QUANT URINE | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC ASSAY OF MAGNESIUM LAB | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC ASSAY OF MAGNESIUM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC ASSAY OF MAGNESIUM CDM | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Milwaukie Hospital Milwaukie, OR · (503) 513-8300 HC MAGNESIUM (RBC) (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC MAGNESIUM URINE (ARUP) | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC MAGNESIUM QUANT URINE | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Providence Willamette Falls Medical Center Oregon City, OR · (503) 656-1631 HC ASSAY OF MAGNESIUM LAB | $30.00 | $40.00 | — | 25% | Apr 1, 2026 source file |
| Legacy Mount Hood Medical Center Gresham, OR · (503) 674-1122 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Meridian Park Medical Center Tualatin, OR · (503) 692-1212 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Emanuel Medical Center Portland, OR · (503) 413-2200 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver, WA · (360) 487-1000 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
| Legacy Good Samaritan Medical Center Portland, OR · (503) 413-7682 HC MAGNESIUM | $81.25 | $125.00 | — | 35% | Apr 1, 2026 source file |
Inpatient: lowest $4.74, median $28.05, highest $30.00 — a 6.3× difference within the same market.
As an outpatient, the same code is billed by 15 facilities here, median $28.05 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 0 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
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.