Lab tests CPT 82140 Massachusetts Outpatient

Ammonia test cost in Massachusetts

In Massachusetts, 33 hospitals publish a cash price for ammonia blood test: from $24.44 to $263.00, with a median of $92.00. The lowest price is at Boston Medical Center South (Brockton). The highest price is 10.8× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 82140. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 29, 2026. See them on a map

Lowest$24.44Boston Medical Center South

Median$92.00half pay less

Highest$263.00in Massachusetts

Lowest saves$67.56vs the median

Hospitals in Massachusetts, cheapest first

Hospital	Cash price	List price	File date
Boston Medical Center South lowest Brockton · Boston-Cambridge-Newton, MA-NH HC Chg Assay of Ammonia	$24.44	$54.30	— source file
Boston Medical Center Brighton Boston · Boston-Cambridge-Newton, MA-NH HC Chg Assay of Ammonia	$27.79	$61.76	— source file
Lowell General Hospital Lowell · Boston-Cambridge-Newton, MA-NH HC Assay of Ammonia - Ammonia	$35.70	$51.00	— source file
Melrosewakefield Healthcare Melrose · Boston-Cambridge-Newton, MA-NH HC Assay of Ammonia - Ammonia	$35.70	$51.00	— source file
Tufts Medical Center Boston · Boston-Cambridge-Newton, MA-NH HC Assay of Ammonia - Ammonia	$35.70	$51.00	— source file
The Mercy Hospital Springfield · Springfield, MA HC Ammonia	$41.60	$64.00	Mar 31, 2026 source file
Signature Healthcare Brockton Hospital Brockton · Boston-Cambridge-Newton, MA-NH AMMONIA	$42.00	$60.00	Jan 28, 2026 source file
Emerson Hospital Concord · Boston-Cambridge-Newton, MA-NH AMMONIA	$45.00	$60.00	May 18, 2026 source file
Beth Israel Deaconess Hospital - Plymouth Plymouth · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$51.00	$51.00	Apr 1, 2026 source file
Boston Medical Center Boston · Boston-Cambridge-Newton, MA-NH HC Chg Assay of Ammonia	$53.10	$118.00	— source file
Brown University Health Morton Hospital Taunton · Providence-Warwick, RI-MA HC AMMONIA	$54.30	$54.30	— source file
Southcoast Hospitals Group Fall River · Providence-Warwick, RI-MA HC Assay of Ammonia	$59.50	$119.00	— source file
Southcoast Hospitals Group - St. Luke's Hospital St. New Bedford · Providence-Warwick, RI-MA HC Assay of Ammonia	$59.50	$119.00	— source file
Southcoast Hospitals Group - Tobey Hospital Campus Wareham · Boston-Cambridge-Newton, MA-NH HC Assay of Ammonia	$59.50	$119.00	— source file
Holyoke Medical Center Holyoke · Springfield, MA Assay Of Ammonia	$63.00	$63.00	— source file
Saint Anne's Hospital Fall River · Providence-Warwick, RI-MA HC AMMONIA	$70.51	$70.51	— source file
HealthAlliance - Clinton Hospital Leominster · Worcester, MA HC Ammonia	$92.00	$92.00	Mar 26, 2026 source file
Cambridge Health Alliance Cambridge · Boston-Cambridge-Newton, MA-NH HC Ammonia	$93.00	$93.00	— source file
New England Baptist Hospital Boston · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$96.00	$96.00	Apr 1, 2026 source file
Beth Israel Deaconess Hospital-Milton Milton · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$98.00	$98.00	Apr 1, 2026 source file
Lahey Hospital & Medical Center, Burlington Burlington · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$99.00	$99.00	Apr 1, 2026 source file
Winchester Hospital Winchester · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$102.00	$102.00	Apr 1, 2026 source file
Mount Auburn Hospital Cambridge · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$104.00	$104.00	Apr 1, 2026 source file
Anna Jaques Hospital Newburyport · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$106.00	$106.00	Apr 1, 2026 source file
UMass Memorial Health - Harrington Hospital Southbridge · Worcester, MA HC Ammonia	$109.00	$109.00	Apr 3, 2026 source file
Milford Regional Medical Center Milford · Worcester, MA Assay of ammonia	$116.00	$116.00	— source file
Berkshire Medical Center Pittsfield · Pittsfield, MA Ammonia Blood	$126.13	$132.77	Mar 25, 2026 source file
Fairview Hospital Great Barrington · Pittsfield, MA Ammonia Blood	$126.13	$132.77	Mar 25, 2026 source file
North Adams Regional Hospital North Adams · Pittsfield, MA Ammonia Blood	$126.13	$132.77	Mar 25, 2026 source file
Shriners Childrens - Boston Boston · Boston-Cambridge-Newton, MA-NH ASSAY OF AMMONIA	$141.20	$141.20	— source file
Beth Israel Deaconess Medical Center Boston · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$158.00	$158.00	Apr 1, 2026 source file
UMass Memorial Medical Center Worcester · Worcester, MA HC Ammonia	$202.00	$202.00	Mar 26, 2026 source file
Beth Israel Deaconess Hospital - Needham Needham · Boston-Cambridge-Newton, MA-NH CHG ASSAY OF AMMONIA	$263.00	$263.00	Apr 1, 2026 source file

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro area	Hospitals	Lowest	Median
Boston-Cambridge-Newton, MA-NH	20	$24.44	$76.25
Providence-Warwick, RI-MA	4	$54.30	$59.50
Worcester, MA	4	$92.00	$112.50
Pittsfield, MA	3	$126.13	$126.13
Springfield, MA	2	$41.60	$52.30

What it is

An ammonia test measures ammonia in the blood. It is used for confusion or drowsiness in people with liver disease and for some rare inherited disorders in newborns.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

Ammonia blood test in other states

Median cash price across the state's hospitals.