Creatine kinase (CK) test cost in Boston, MA

Prices at 5 hospitals in Boston, MA, from their machine-readable files. Here the median cash price is $75 — 50% above the US median ($50), roughly 11.5× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
Tufts Medical Center Boston, MA $17 $12 ★ 2/5 208 min —
The Shriners' Hospital for Children-Boston Boston, MA $63 $9 — — —
Massachusetts General Hospital Boston, MA $75 $70 ★ 5/5 288 min —
Brigham and Women's Hospital Boston, MA $75 $71 ★ 5/5 300 min —
Massachusetts Eye and Ear Infirmary Boston, MA $89 $61 — 174 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)
$100
Cash / self-pay
$75
Insurer-negotiated
$61
Medicare pays
$7
$35$84
Median cash $75  ·  Medicare $7  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $75 — about 11.5× 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 $100 list price could save about $25 (25%).

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

All Creatine kinase (CK) test prices in Massachusetts → · All Creatine kinase (CK) test prices (national) · All hospitals in Boston