Magnesium test cost in Eugene, OR
In Eugene-Springfield, OR, 4 hospitals list a cash price for magnesium blood test: from $64.35 to $82.59, with a median of $70.20. The lowest listed price is at Cottage Grove Community Medical Ct and 1 other hospital — $5.85 less than the median here. Across Oregon, the median is $30.00 at 39 hospitals.
Cash prices at 4 facilities across 3 cities for code 83735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Sep 17, 2026 and Sep 17, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Eugene-Springfield, OR.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Cottage Grove Community Medical Ct lowest Cottage Grove, OR · (541) 942-0511 ASSAY OF MAGNESIUM | $64.35 | $99.00 | — | 35% | — source file |
| Peace Harbor Medical Center lowest Florence, OR · (541) 997-8412 ASSAY OF MAGNESIUM | $64.35 | $99.00 | — | 35% | — source file |
| Sacred Heart-Riverbend Springfield, OR · (541) 222-7300 MAGNESIUM LEVEL | $76.05 | $117.00 | $5.36–$29.55 | 35% | — source file |
| Sacred Heart-Riverbend Springfield, OR · (541) 222-7300 ASSAY OF MAGNESIUM | $78.65 | $121.00 | $5.36–$29.55 | 35% | — source file |
| McKenzie Willamette Regional Medical Center Associates Springfield, OR · (541) 726-4402 Magnesium level | $82.59 | $137.65 | $8.93–$371.66 | 40% | Sep 17, 2026 source file |
| Peace Harbor Medical Center Florence, OR · (541) 997-8412 MAGNESIUM LEVEL | $128.70 | $198.00 | — | 35% | — source file |
| Cottage Grove Community Medical Ct Cottage Grove, OR · (541) 942-0511 MAGNESIUM LEVEL | $193.05 | $297.00 | — | 35% | — source file |
Outpatient: lowest $64.35, median $70.20, highest $82.59 — a 1.3× difference within the same market.
Cash or insurance?
At 1 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.