Magnesium test cost in Washington
In Washington, 59 hospitals publish a cash price for magnesium blood test: from $9.10 to $129.46, with a median of $53.90. The lowest price is at Providence St Mary Medical Center (Walla Walla). The highest price is 14.2× the lowest.
- The median here, $53.90, is 30% above the US median of $41.60.
- That is 8.0× Medicare's 2026 national rate for the same service ($6.70).
- Washington ranks 37th of 51 states by median, cheapest first.
- 5 of 59 hospitals list a cash price equal to their full list price, with no self-pay discount.
Washington law (RCW 70.170.060) requires hospital charity care: patients with family income up to 300% of the federal poverty level owe nothing at hospitals in large health systems (200% at other hospitals), with 75% and 50% discounts up to 400% (300% at other hospitals). It covers the part of the bill a patient owes, insured or not. Ask the hospital for its charity care application. Other states' laws.
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 Nov 11, 2026. See them on a map
Lowest$9.10Providence St Mary Medical Center
Median$53.90half of hospitals charge less
Highest$129.46in Washington
Lowest saves$44.80vs the median
Hospitals in Washington, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Providence St Mary Medical Center lowest Walla Walla · Walla Walla, WA HC MAGNESIUM (RL) | $9.10 | $13.00 | Apr 1, 2026 source file |
| Overlake Medical Center & Clinics Bellevue · Seattle-Tacoma-Bellevue, WA Hc Magnesium, U | $14.06 | $28.13 | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA HC RBC MAGNESIUM | $15.60 | $24.00 | Apr 1, 2026 source file |
| Providence Mount Carmel Hospital Colville · Spokane-Spokane Valley, WA HC MAGNESIUM QUANT URINE | $26.60 | $38.00 | Apr 1, 2026 source file |
| Kittitas County Public Hospital Dist 1 Ellensburg · Ellensburg, WA Magnesium level | $28.05 | $33.00 | Oct 7, 2026 source file |
| Confluence Health Hospital Wenatchee · Wenatchee-East Wenatchee, WA HC Assay of Magnesium | $28.80 | $32.00 | Aug 10, 2026 source file |
| Astria Toppenish Hospital Toppenish · Yakima, WA Magnesium 24 Hour Urine | $32.50 | $50.00 | Apr 1, 2026 source file |
| Olympic Medical Center Port Angeles · Port Angeles, WA Magnesium level | $33.60 | $42.00 | Jun 24, 2026 source file |
| Valley Medical Center Renton · Seattle-Tacoma-Bellevue, WA Assay of Magnesium | $34.30 | $49.00 | Mar 12, 2026 source file |
| Snoqualmie Valley Hospital Snoqualmie · Seattle-Tacoma-Bellevue, WA Facility Fee HC MAGNESIUM, U | $34.32 | $59.17 | Apr 14, 2026 source file |
| Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA MAGNESIUM | $35.19 | $69.00 | Jan 1, 2026 source file |
| Willapa Harbor Hospital South Bend · South Bend, WA MAGNESIUM LEVEL | $36.40 | $52.00 | Feb 24, 2026 source file |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane · Spokane-Spokane Valley, WA HC ASSAY OF MAGNESIUM | $38.50 | $55.00 | Apr 1, 2026 source file |
| Saint Clare Hospital Lakewood · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM SERUM | $41.77 | $144.80 | Sep 30, 2026 source file |
| St Anthony Hospital Gig Harbor · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM SERUM | $44.04 | $144.80 | Sep 30, 2026 source file |
| Highline Medical Center Burien · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM SERUM | $44.08 | $144.80 | Sep 30, 2026 source file |
| St Francis Community Hospital Federal Way · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM SERUM | $44.53 | $144.80 | Sep 30, 2026 source file |
| Providence Centralia Hospital Centralia · Centralia, WA HC ASSAY OF MAGNESIUM LAB | $45.24 | $87.00 | Apr 1, 2026 source file |
| Summit Pacific Medical Center Elma · Aberdeen, WA Magnesium level | $45.90 | $85.00 | Aug 31, 2026 source file |
| St Joseph Medical Center Tacoma · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM SERUM | $46.12 | $139.23 | Feb 28, 2026 source file |
| Swedish Edmonds Edmonds · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM QUANT URINE | $48.48 | $101.00 | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM QUANT URINE | $48.48 | $101.00 | Apr 1, 2026 source file |
| Swedish Medical Center Seattle · Seattle-Tacoma-Bellevue, WA HC ASSAY OF MAGNESIUM LAB | $48.48 | $101.00 | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle · Seattle-Tacoma-Bellevue, WA HC ASSAY OF MAGNESIUM LAB | $48.48 | $101.00 | Apr 1, 2026 source file |
| Providence St Joseph Hospital Chewelah · Spokane-Spokane Valley, WA HC ASSAY OF MAGNESIUM | $50.40 | $72.00 | Apr 1, 2026 source file |
| Jefferson Healthcare Port Townsend · Port Townsend, WA Magnesium level | $52.00 | $65.00 | Aug 6, 2026 source file |
| Providence Regional Medical Center Everett Everett · Seattle-Tacoma-Bellevue, WA HC ASSAY OF MAGNESIUM LAB | $52.52 | $101.00 | Apr 1, 2026 source file |
| St Elizabeth Hospital Enumclaw · Seattle-Tacoma-Bellevue, WA HC MAGNESIUM SERUM | $53.18 | $144.80 | Sep 30, 2026 source file |
| Whitman Hospital and Medical Center Colfax · Pullman, WA Magnesium level | $53.60 | $67.00 | Jun 29, 2026 source file |
| Providence Holy Family Hospital Spokane · Spokane-Spokane Valley, WA HC MAGNESIUM RBC | $53.90 | $77.00 | Apr 1, 2026 source file |
| Lake Chelan Community Hospital Chelan · Wenatchee-East Wenatchee, WA Magnesium level | $53.93 | $53.93 | Sep 1, 2026 source file |
| Providence St Peter Hospital Olympia · Olympia-Lacey-Tumwater, WA HC ASSAY OF MAGNESIUM CDM | $55.64 | $107.00 | Apr 1, 2026 source file |
| Quincy Valley Medical Center Quincy · Moses Lake, WA Magnesium level | $58.17 | $58.17 | May 27, 2026 source file |
| Shriners Childrens - Spokane Spokane · Spokane-Spokane Valley, WA MAGNESIUM LEVEL | $58.20 | $58.20 | Mar 18, 2026 source file |
| St. Michael Medical Center Silverdale · Bremerton-Silverdale-Port Orchard, WA HC MAGNESIUM SERUM | $61.45 | $139.23 | Feb 28, 2026 source file |
| Pullman Regional Hospital Pullman · Pullman, WA Magnesium level | $62.05 | $73.00 | Jun 9, 2026 source file |
| Cascade Valley Hospital Arlington · Seattle-Tacoma-Bellevue, WA HC ASSAY OF MAGNESIUM | $63.20 | $79.00 | Mar 26, 2026 source file |
| PeaceHealth Peace Island Medical Center Friday Harbor · Friday Harbor, WA MAGNESIUM LEVEL | $64.35 | $99.00 | Mar 20, 2026 source file |
| PeaceHealth United General Medical Center Sedro Woolley · Mount Vernon-Anacortes, WA MAGNESIUM LEVEL | $64.35 | $99.00 | Mar 21, 2026 source file |
| Ocean Beach Hospital Ilwaco · Ilwaco, WA HC ASSAY OF MAGNESIUM CDM | $66.00 | $88.00 | Oct 23, 2026 source file |
| Samaritan Hospital Moses Lake · Moses Lake, WA Magnesium level | $72.00 | $72.00 | Jan 4, 2026 source file |
| Kadlec Regional Medical Center Richland · Kennewick-Richland, WA HC ASSAY OF MAGNESIUM CDM | $73.50 | $105.00 | Apr 1, 2026 source file |
| Cascade Medical Center Leavenworth · Wenatchee-East Wenatchee, WA Assay of magnesium | $75.20 | $94.00 | May 15, 2026 source file |
| Kaiser Permanente Central Hospital Seattle · Seattle-Tacoma-Bellevue, WA MAGNESIUM | $76.00 | $95.00 | Apr 1, 2026 source file |
| Skagit Valley Hospital Mount Vernon · Mount Vernon-Anacortes, WA HC ASSAY OF MAGNESIUM | $76.00 | $95.00 | Mar 26, 2026 source file |
| Othello Community Hospital Othello · Othello, WA Magnesium level | $77.63 | $103.50 | Jul 1, 2026 source file |
| PeaceHealth St Joseph Medical Center Bellingham · Bellingham, WA ASSAY OF MAGNESIUM | $78.65 | $121.00 | Mar 21, 2026 source file |
| Prosser Memorial Health Hospital Prosser · Kennewick-Richland, WA HC MAGNESIUM | $79.20 | $144.00 | Jan 1, 2025 source file |
| Klickitat Valley Hospital Goldendale · Goldendale, WA MAGNESIUM, SERUM | $84.00 | $105.00 | Dec 2, 2024 source file |
| Ferry County Memorial Hospital Republic · Republic, WA ASSAY OF MAGNESIUM | $84.02 | $98.85 | Sep 14, 2026 source file |
| Lincoln Hospital Davenport · Davenport, WA Magnesium level | $85.59 | $95.10 | Sep 14, 2026 source file |
| Arbor Health Morton Hospital Morton · Centralia, WA Magnesium level | $89.90 | $145.00 | May 18, 2026 source file |
| PeaceHealth Southwest Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA MAGNESIUM LEVEL | $91.65 | $141.00 | Mar 20, 2026 source file |
| Astria Sunnyside Hospital Sunnyside · Kennewick-Richland, WA Magnesium Urine | $92.91 | $163.00 | Apr 1, 2026 source file |
| PeaceHealth St John Medical Center Longview · Longview-Kelso, WA ASSAY OF MAGNESIUM | $94.25 | $145.00 | Mar 21, 2026 source file |
| Mason General Hospital & Family of Clinics Shelton · Shelton, WA Magnesium Level | $99.75 | $133.00 | Mar 10, 2026 source file |
| Seattle Children's Hospital Seattle · Seattle-Tacoma-Bellevue, WA Magnesium, Body Fluid | $100.40 | $100.40 | Mar 31, 2026 source file |
| Forks Community Hospital Forks · Port Townsend, WA Magnesium level | $125.60 | $157.00 | Oct 27, 2026 source file |
| Lourdes Health Pasco · Kennewick-Richland, WA ASSAY OF MAGNESIUM | $129.46 | $323.66 | Jul 10, 2026 source file |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Seattle-Tacoma-Bellevue, WA | 18 | $14.06 | $47.30 |
| Spokane-Spokane Valley, WA | 5 | $26.60 | $50.40 |
| Kennewick-Richland, WA | 4 | $73.50 | $86.06 |
| Wenatchee-East Wenatchee, WA | 3 | $28.80 | $53.93 |
| Centralia, WA | 2 | $45.24 | $67.57 |
| Moses Lake, WA | 2 | $58.17 | $65.08 |
| Mount Vernon-Anacortes, WA | 2 | $64.35 | $70.18 |
| Port Townsend, WA | 2 | $52.00 | $88.80 |
| Portland-Vancouver-Hillsboro, OR-WA | 2 | $15.60 | $53.62 |
| Pullman, WA | 2 | $53.60 | $57.82 |
| Aberdeen, WA | 1 | $45.90 | $45.90 |
| Bellingham, WA | 1 | $78.65 | $78.65 |
| Bremerton-Silverdale-Port Orchard, WA | 1 | $61.45 | $61.45 |
| Davenport, WA | 1 | $85.59 | $85.59 |
| Ellensburg, WA | 1 | $28.05 | $28.05 |
| Friday Harbor, WA | 1 | $64.35 | $64.35 |
| Goldendale, WA | 1 | $84.00 | $84.00 |
| Ilwaco, WA | 1 | $66.00 | $66.00 |
| Longview-Kelso, WA | 1 | $94.25 | $94.25 |
| Olympia-Lacey-Tumwater, WA | 1 | $55.64 | $55.64 |
| Othello, WA | 1 | $77.63 | $77.63 |
| Port Angeles, WA | 1 | $33.60 | $33.60 |
| Republic, WA | 1 | $84.02 | $84.02 |
| South Bend, WA | 1 | $36.40 | $36.40 |
| Shelton, WA | 1 | $99.75 | $99.75 |
| Walla Walla, WA | 1 | $9.10 | $9.10 |
| Yakima, WA | 1 | $32.50 | $32.50 |
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More
What magnesium test is, what the price covers and why prices differ: Magnesium test explained.
Magnesium blood test in other states
- Alabama$22.50
- Alaska$74.13
- Arizona$13.82
- Arkansas$27.43
- California$62.48
- Colorado$59.06
- Connecticut$35.00
- Delaware$67.90
- District of Columbia$72.88, 3 hospitals
- Florida$13.25
- Georgia$45.00
- Hawaii$62.30
- Idaho$46.20
- Illinois$68.63
- Indiana$47.59
- Iowa$50.40
- Kansas$51.80
- Kentucky$49.13
- Louisiana$22.36
- Maine$42.39
- Maryland$17.25
- Massachusetts$38.00
- Michigan$20.00
- Minnesota$41.80
- Mississippi$35.70
- Missouri$47.57
- Montana$64.90
- Nebraska$75.28
- Nevada$67.81
- New Hampshire$52.68
- New Jersey$7.71
- New Mexico$76.07
- New York$24.73
- North Carolina$40.00
- North Dakota$31.73
- Ohio$33.78
- Oklahoma$37.20
- Oregon$34.50
- Pennsylvania$41.58
- Puerto Rico$21.00
- Rhode Island$52.70
- South Carolina$53.80
- South Dakota$68.80
- Tennessee$20.68
- Texas$48.00
- Utah$104.55
- Vermont$56.35
- Virginia$54.80
- West Virginia$19.50
- Wisconsin$52.50
- Wyoming$43.67
Median cash price across the state's hospitals.