Phosphorus blood test cost in Washington

Prices at 39 hospitals in Washington, from their machine-readable files. Here the median cash price is $29 — 28% below the US median ($41), roughly 6.2× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
Navos-Inpatient Services Seattle, WA $10 — — — —
Multicare Auburn Medical Center Auburn, WA $11 $5 ★ 2/5 217 min —
Multicare Good Samaritan Hospital Puyallup, WA $11 $5 ★ 2/5 133 min —
Tacoma General Allenmore Hospital Tacoma, WA $11 $5 ★ 2/5 208 min —
Multicare Covington Medical Center Covington, WA $11 $5 ★ 3/5 177 min —
Mary Bridge Children's Hospital Tacoma, WA $11 $5 — — —
Wellfound Behavioral Health Hospital Tacoma, WA $14 — — — —
Providence Mount Carmel Hospital Colville, WA $18 — ★ 3/5 150 min —
Valley Medical Center Renton, WA $20 $14 ★ 2/5 199 min —
St Clare Hospital Lakewood, WA $21 $6 ★ 4/5 161 min —
Deaconess Medical Center Spokane, WA $21 $5 ★ 3/5 180 min —
Multicare Valley Hospital Spokane Valley, WA $21 $6 ★ 5/5 190 min —
St Anthony Hospital Gig Harbor, WA $22 $6 ★ 5/5 200 min —
St Francis Community Hospital Federal Way, WA $23 $6 ★ 4/5 202 min —
Legacy Salmon Creek Medical Center Vancouver, WA $24 — ★ 4/5 260 min —
Virginia Mason Medical Center Seattle, WA $24 $16 ★ 5/5 206 min —
St Joseph Medical Center Tacoma, WA $24 $6 ★ 3/5 211 min —
Confluence Health Hospital Wenatchee, WA $26 $16 ★ 3/5 143 min —
St Elizabeth Hospital Enumclaw, WA $26 $13 ★ 5/5 193 min —
Capital Medical Center Olympia, WA $29 $5 ★ 3/5 140 min —
Columbia Basin Hospital Ephrata, WA $32 $28 — 132 min —
Peacehealth Peace Island Medical Center Friday Harbor, WA $36 — — 101 min —
Willapa Harbor Hospital South Bend, WA $36 — — 130 min —
Newport Community Hospital Newport, WA $38 $32 — — —
Prosser Memorial Hospital Prosser, WA $45 $66 ★ 3/5 112 min —

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)

Chargemaster (list price)
$55
Cash / self-pay
$29
Insurer-negotiated
$6
Medicare pays
$5
$11$71
Median cash $29  ·  Medicare $5  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $29 — about 6.2× the Medicare rate ($5). High vs Medicare. A fair cash price is usually within ~2× Medicare ($9).

💡 Asking for the cash price instead of the $55 list price could save about $26 (47%).

Estimate what you’ll pay
Quick fill:

Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.

By city

Phosphorus blood test cost in other states

All Phosphorus blood test prices (national) → · All hospitals in Washington →