Magnesium blood test cost in Puerto Rico

Prices at 12 hospitals in Puerto Rico, from their machine-readable files. Here the median cash price is $18 — 64% below the US median ($51), roughly 2.7× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
Hospital General De Castaner Castaner, PR $12 $7
Doctor's Center De San Juan Santurce, PR $18 $9 15.5%
Doctors' Center Bayamon Bayamon, PR $18 $12 16.6%
Doctors' Center Hospital, Inc Manati, PR $18 $12 ★ 1/5 16.3%
Hospital Pavia Caguas Caguas, PR $18 $7 17.1%
Doctors Center Hospital Carolina Llc Carolina, PR $18 $9 315 min 15.8%
Hospital De La Concepcion San German, PR $23 $9 16.2%
Hospital Comunitario Buen Samaritano Inc Aguadilla, PR $25 $10 15.7%
Bayamon Medical Center Bayamon, PR $28 $9 285 min 15.8%

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 August 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)
$18
Cash / self-pay
$18
Insurer-negotiated
$9
Medicare pays
$7
$17$26
Median cash $18  ·  Medicare $7  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $18 — about 2.7× the Medicare rate ($7). On the higher side. A fair cash price is usually within ~2× Medicare ($13).

Estimate what you’ll pay
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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.

Magnesium blood test cost in other states

All Magnesium blood test prices (national) → · All hospitals in Puerto Rico →