Ammonia blood test cost in Massachusetts

Prices at 32 hospitals in Massachusetts, from their machine-readable files. Here the median cash price is $118 — 31% above the US median ($90), roughly 8.1× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
Tufts Medical Center Boston, MA $36 $25 ★ 2/5 211 min 17.2%
Mercy Medical Ctr Springfield, MA $42 $29 ★ 2/5 278 min 15.7%
Signature Healthcare Brockton Hospital Brockton, MA $42 $18 ★ 3/5 210 min
Emerson Hospital W Concord, MA $45 $15 ★ 5/5 210 min 13.5%
Cape Cod Hospital Hyannis, MA $50 $16 ★ 2/5 202 min 16.5%
Falmouth Hospital Falmouth, MA $50 $19 ★ 4/5 160 min 16.0%
Holyoke Medical Center Holyoke, MA $50 $16 ★ 4/5 267 min 16.2%
Whittier Pavilion Haverhill, MA $52
Sturdy Memorial Hospital Attleboro, MA $52 $15 ★ 3/5 197 min 16.2%
Boston Medical Center-Brighton Brighton, MA $53 $15 ★ 3/5 148 min 16.4%
Nantucket Cottage Hospital Nantucket, MA $78 $98 ★ 3/5 116 min 15.1%
Heywood Hospital Gardner, MA $85 $28 ★ 2/5 194 min 15.7%
Cooley Dickinson Hospital Inc,the Northampton, MA $91 $119 ★ 2/5 252 min 15.2%
Cambridge Health Alliance Cambridge, MA $93 $93 ★ 3/5 164 min 14.9%
Newton-Wellesley Hospital Newton, MA $93 $73 ★ 5/5 263 min 15.1%
Milford Regional Medical Center Milford, MA $116 $15 ★ 4/5 274 min 17.2%
Martha's Vineyard Hospital Inc Oak Bluffs, MA $120 $80 ★ 4/5 157 min 17.0%
Berkshire Medical Center Pittsfield, MA $126 $86 ★ 4/5 248 min 14.9%
Fairview Hospital Great Barrington, MA $126 $86 ★ 5/5 114 min 14.2%
North Adams Regional Hospital Corporation North Adams, MA $126 $85 153 min
The Shriners' Hospital for Children-Boston Boston, MA $141 $20
Massachusetts General Hospital Boston, MA $174 $156 ★ 5/5 283 min 14.3%
Brigham and Women's Hospital Boston, MA $174 $184 ★ 5/5 309 min 14.9%
Brigham and Women Faulkner Hospital Jamaica Plain, MA $174 $184 ★ 5/5 255 min 14.1%
Athol Memorial Hospital Athol, MA $200 $36 ★ 2/5 176 min 15.3%

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 June 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)
$128
Cash / self-pay
$118
Insurer-negotiated
$35
Medicare pays
$15
$45$202
Median cash $118  ·  Medicare $15  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $118 — about 8.1× the Medicare rate ($15). High vs Medicare. A fair cash price is usually within ~2× Medicare ($29).

💡 Asking for the cash price instead of the $128 list price could save about $10 (8%).

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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.

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