Prices at 3 hospitals in Seattle, WA, from their machine-readable files. Here the median cash price is $35 — 30% below the US median ($51), roughly 5.3× the Medicare rate.
Lowest cash prices
| Hospital | Location | Cash | Insurer | CMS rating | ER wait | Readmit |
|---|---|---|---|---|---|---|
| Navos-Inpatient Services | Seattle, WA | $18 | — | — | — | — |
| Virginia Mason Medical Center | Seattle, WA | $35 | $22 | ★ 5/5 | 206 min | — |
| Kaiser Permanente Central Hospital | Seattle, WA | $76 | $13 | — | — | — |
CMS rating = overall hospital star rating (1–5); ER wait = median minutes in the emergency department; Readmit = 30-day readmission rate (lower is better) — all from Medicare’s Care Compare; “—” = not reported. Data last updated October 2026. Prices from hospitals’ machine-readable files (45 CFR §180); Medicare benchmark from CMS PFS/CLFS/IPPS. Prices below 15% of the median are excluded as likely partial or mis-coded charges. Estimates — confirm with the hospital. Report an incorrect price.
Price comparison (median)
Typical cash price here is $35 — about 5.3× the Medicare rate ($7). High vs Medicare. A fair cash price is usually within ~2× Medicare ($13).
💡 Asking for the cash price instead of the $69 list price could save about $34 (49%).
Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.
Doctors who perform this in Seattle
Clinicians who reported the most Medicare volume for this service locally. This reflects Original Medicare activity only and is a volume signal, not a quality ranking.
| Clinician | Specialty | Location | Medicare services |
|---|---|---|---|
| Henry Li, M.D. | Hematology-Oncology | Seattle, WA | 95 |
| Kathryn Treit, MD | Nephrology | Seattle, WA | 46 |
| Anne Pesenson, MD | Nephrology | Seattle, WA | 30 |
All Magnesium blood test prices in Washington → · All Magnesium blood test prices (national) · All hospitals in Seattle