Lab tests CPT 82140 Maine Outpatient

Ammonia test cost in Maine

In Maine, 29 hospitals publish a cash price for ammonia blood test: from $10.50 to $427.95, with a median of $88.35. The lowest price is at Redington-Fairview General Hospital (Skowhegan). The highest price is 40.8× 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$10.50Redington-Fairview General Hospital
Median$88.35half pay less
Highest$427.95in Maine
Lowest saves$77.85vs the median

Hospitals in Maine, cheapest first

HospitalCash price List priceFile date
Redington-Fairview General Hospital lowest Skowhegan · Skowhegan, ME STONE RISK DIAG PROFILE-82140 $10.50 $16.00 —
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Central Maine Medical Center Lewiston · Lewiston-Auburn, ME HC ASSAY OF AMMONIA $14.00 $305.94 Jun 25, 2026
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Northern Light Eastern Maine Medical Center Bangor · Bangor, ME AMMONIA/LAB $20.16 $96.00 —
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Northern Light Mercy Hospital Portland · Portland-South Portland, ME AMMONIA $26.52 $102.00 —
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Northern Light AR Gould Hospital Presque Isle · Presque Isle, ME STONE ANALYSIS AMMONIA $27.72 $132.00 —
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Northern Light Maine Coast Hospital Ellsworth · Ellsworth, ME Ammonia, 24 Hour Urine $28.50 $114.00 —
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Northern Light Acadia Hospital Bangor · Bangor, ME AMMONIA $34.56 $96.00 —
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Northern Light Mayo Hospital Dover Foxcroft · Dover Foxcroft, ME Ammonia Level $43.23 $131.00 —
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Northern Light Sebasticook Valley Hospital Pittsfield · Pittsfield, ME STONE ANALYSIS AMMONIA $44.54 $131.00 —
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Blue Hill Memorial Hospital Blue Hill · Blue Hill, ME STONE ANALYSIS AMMONIA $48.47 $131.00 —
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Northern Light CA Dean Hospital Greenville · Greenville, ME STONE ANALYSIS AMMONIA $65.50 $131.00 —
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Penobscot Valley Hospital Lincoln · Bangor, ME .Ammonia ALI $72.99 $91.24 —
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York Hospital York · Portland-South Portland, ME AMMONIA $87.60 $146.00 —
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Rumford Hospital Rumford · Rumford, ME HC ASSAY OF AMMONIA $88.00 $305.94 Apr 29, 2026
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Houlton Regional Hospital Houlton · Houlton, ME AMMONIA $88.35 $93.00 —
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Bridgton Hospital Bridgton · Portland-South Portland, ME HC ASSAY OF AMMONIA $94.00 $305.94 Apr 29, 2026
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Millinocket Regional Hospital Millinocket · Bangor, ME AMMONIA $101.70 $113.00 —
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MaineHealth Maine Medical Center Portland · Portland-South Portland, ME B* HC ASSAY OF AMMONIA $112.00 $112.00 Sep 9, 2025
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St Mary's Regional Medical Center Lewiston · Lewiston-Auburn, ME HC SO AMMONIA $114.38 $301.00 —
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Calais Community Hospital Calais · Calais, ME Ammonia $115.00 $153.00 —
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MaineHealth Franklin Hospital Farmington · Farmington, ME HC ASSAY OF AMMONIA $159.05 $159.05 Sep 9, 2025
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LincolnHealth Damariscotta · Damariscotta, ME HC ASSAY OF AMMONIA $179.50 $179.50 Sep 9, 2025
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MaineHealth Stephens Hospital Norway · Norway, ME HC ASSAY OF AMMONIA $186.30 $186.30 Sep 9, 2025
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Southern Maine Medical Center Biddeford · Portland-South Portland, ME HC ASSAY OF AMMONIA $247.40 $247.40 Sep 9, 2025
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MaineHealth Waldo Hospital Belfast · Belfast, ME HC ASSAY OF AMMONIA $274.05 $274.05 Sep 9, 2025
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Down East Community Hospital Machias · Machias, ME Ammonia Level $336.00 $448.00 —
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Mount Desert Island Hospital Bar Harbor · Bar Harbor, ME Ammonia Level $423.00 $470.00 —
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MaineHealth Mid Coast Hospital Brunswick · Portland-South Portland, ME HC ASSAY OF AMMONIA $427.95 $427.95 Sep 9, 2025
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MaineHealth Pen Bay Hospital Rockport · Rockport, ME HC ASSAY OF AMMONIA $427.95 $427.95 Sep 9, 2025
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By metro area

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

Metro areaHospitals LowestMedian
Portland-South Portland, ME 6 $26.52 $103.00
Bangor, ME 4 $20.16 $53.78
Lewiston-Auburn, ME 2 $14.00 $64.19
Bar Harbor, ME 1 $423.00 $423.00
Belfast, ME 1 $274.05 $274.05
Blue Hill, ME 1 $48.47 $48.47
Calais, ME 1 $115.00 $115.00
Damariscotta, ME 1 $179.50 $179.50
Dover Foxcroft, ME 1 $43.23 $43.23
Ellsworth, ME 1 $28.50 $28.50
Farmington, ME 1 $159.05 $159.05
Greenville, ME 1 $65.50 $65.50
Houlton, ME 1 $88.35 $88.35
Machias, ME 1 $336.00 $336.00
Norway, ME 1 $186.30 $186.30
Pittsfield, ME 1 $44.54 $44.54
Presque Isle, ME 1 $27.72 $27.72
Rockport, ME 1 $427.95 $427.95
Rumford, ME 1 $88.00 $88.00
Skowhegan, ME 1 $10.50 $10.50

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.