Potassium test cost in Maine
In Maine, 28 hospitals publish a cash price for potassium blood test: from $4.00 to $181.80, with a median of $25.54. The lowest price is at Central Maine Medical Center (Lewiston). The highest price is 45.4× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 84132. Prices for both sides of the body and inpatient prices are not mixed in. Collected Oct 2, 2026. See them on a map
Lowest$4.00Central Maine Medical Center
Median$25.54half of hospitals charge less
Highest$181.80in Maine
Lowest saves$21.54vs the median
Hospitals in Maine, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Central Maine Medical Center lowest Lewiston · Lewiston-Auburn, ME HC ASSAY OF SERUM POTASSIUM | $4.00 | $37.19 | Jun 25, 2026 source file |
| Northern Light Eastern Maine Medical Center Bangor · Bangor, ME ISTAT POTASSIUM/LAB | $6.30 | $30.00 | Feb 3, 2026 source file |
| Northern Light Mercy Hospital Portland · Portland-South Portland, ME POTASSIUM SERUM | $7.80 | $30.00 | Apr 15, 2026 source file |
| Northern Light AR Gould Hospital Presque Isle · Presque Isle, ME POTASSIUM,SERUM/LAB | $9.45 | $45.00 | Mar 30, 2026 source file |
| Rumford Hospital Rumford · Rumford, ME HC ASSAY OF SERUM POTASSIUM | $10.00 | $37.19 | Apr 29, 2026 source file |
| Bridgton Hospital Bridgton · Portland-South Portland, ME HC ASSAY OF SERUM POTASSIUM | $11.00 | $37.19 | Apr 29, 2026 source file |
| Northern Light Maine Coast Hospital Ellsworth · Ellsworth, ME ISTAT Potassium | $11.00 | $44.00 | Mar 30, 2026 source file |
| Northern Light Mayo Hospital Dover Foxcroft · Dover Foxcroft, ME Potassium Level | $13.20 | $40.00 | Mar 30, 2026 source file |
| Northern Light Sebasticook Valley Hospital Pittsfield · Pittsfield, ME ISTAT POTASSIUM | $13.60 | $40.00 | Mar 30, 2026 source file |
| Blue Hill Memorial Hospital Blue Hill · Blue Hill, ME POTASSIUM LEVEL-Q | $14.06 | $38.00 | Mar 30, 2026 source file |
| Northern Light CA Dean Hospital Greenville · Greenville, ME POTASSIUM LEVEL-Q | $19.00 | $38.00 | Mar 30, 2026 source file |
| York Hospital York · Portland-South Portland, ME W POTASSIUM, SERUM OR PLASMA | $22.80 | $38.00 | Jul 4, 2026 source file |
| Millinocket Regional Hospital Millinocket · Bangor, ME POTASSIUM (BLOOD) | $23.40 | $26.00 | May 26, 2026 source file |
| St Mary's Regional Medical Center Lewiston · Lewiston-Auburn, ME HC POTASSIUM | $25.08 | $66.00 | Apr 1, 2026 source file |
| Down East Community Hospital Machias · Machias, ME Potassium Level | $26.00 | $34.00 | — source file |
| Redington-Fairview General Hospital Skowhegan · Skowhegan, ME POTASSIUM | $30.00 | $44.00 | Jul 23, 2026 source file |
| MaineHealth Waldo Hospital Belfast · Belfast, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $41.45 | $41.45 | Sep 9, 2025 source file |
| Penobscot Valley Hospital Lincoln · Bangor, ME Potassium | $46.50 | $58.12 | Apr 24, 2026 source file |
| Houlton Regional Hospital Houlton · Houlton, ME POTASSIUM SERUM | $52.25 | $55.00 | Mar 25, 2026 source file |
| MaineHealth Franklin Hospital Farmington · Farmington, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $52.55 | $52.55 | Sep 9, 2025 source file |
| Calais Community Hospital Calais · Calais, ME Potassium | $54.00 | $72.00 | — source file |
| MaineHealth Maine Medical Center Portland · Portland-South Portland, ME B* HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $87.50 | $87.50 | Sep 9, 2025 source file |
| LincolnHealth Damariscotta · Damariscotta, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $93.15 | $93.15 | Sep 9, 2025 source file |
| MaineHealth Stephens Hospital Norway · Norway, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $95.80 | $95.80 | Sep 9, 2025 source file |
| MaineHealth Mid Coast Hospital Brunswick · Portland-South Portland, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $99.25 | $99.25 | Sep 9, 2025 source file |
| MaineHealth Pen Bay Hospital Rockport · Rockport, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $99.25 | $99.25 | Sep 9, 2025 source file |
| Southern Maine Medical Center Biddeford · Portland-South Portland, ME HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $104.65 | $104.65 | Sep 9, 2025 source file |
| Mount Desert Island Hospital Bar Harbor · Bar Harbor, ME Potassium Level | $181.80 | $202.00 | Jul 8, 2026 source file |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Portland-South Portland, ME | 6 | $7.80 | $55.15 |
| Bangor, ME | 3 | $6.30 | $23.40 |
| Lewiston-Auburn, ME | 2 | $4.00 | $14.54 |
| Bar Harbor, ME | 1 | $181.80 | $181.80 |
| Belfast, ME | 1 | $41.45 | $41.45 |
| Blue Hill, ME | 1 | $14.06 | $14.06 |
| Calais, ME | 1 | $54.00 | $54.00 |
| Damariscotta, ME | 1 | $93.15 | $93.15 |
| Dover Foxcroft, ME | 1 | $13.20 | $13.20 |
| Ellsworth, ME | 1 | $11.00 | $11.00 |
| Farmington, ME | 1 | $52.55 | $52.55 |
| Greenville, ME | 1 | $19.00 | $19.00 |
| Houlton, ME | 1 | $52.25 | $52.25 |
| Machias, ME | 1 | $26.00 | $26.00 |
| Norway, ME | 1 | $95.80 | $95.80 |
| Pittsfield, ME | 1 | $13.60 | $13.60 |
| Presque Isle, ME | 1 | $9.45 | $9.45 |
| Rockport, ME | 1 | $99.25 | $99.25 |
| Rumford, ME | 1 | $10.00 | $10.00 |
| Skowhegan, ME | 1 | $30.00 | $30.00 |
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More
What it is
A potassium test measures the level of potassium in the blood. Doctors check it for people on diuretics or blood pressure drugs, with kidney disease, an irregular heartbeat, or vomiting and diarrhea.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
Potassium blood test in other states
- Alabama$26.10
- Alaska$61.50
- Arizona$28.33
- Arkansas$19.20
- California$73.26
- Colorado$69.88
- Connecticut$26.08
- Delaware$60.74
- District of Columbia$67.62
- Florida$68.45
- Georgia$32.53
- Hawaii$47.60
- Idaho$35.70
- Illinois$46.20
- Indiana$28.50
- Iowa$34.00
- Kansas$32.29
- Kentucky$46.40
- Louisiana$16.25
- Maryland$11.58
- Massachusetts$31.00
- Michigan$22.10
- Minnesota$44.20
- Mississippi$27.00
- Missouri$40.00
- Montana$40.80
- Nebraska$47.81
- Nevada$62.00
- New Hampshire$47.59
- New Jersey$5.90
- New Mexico$53.56
- New York$20.49
- North Carolina$39.30
- North Dakota$41.00
- Ohio$23.27
- Oklahoma$32.30
- Oregon$21.75
- Pennsylvania$33.20
- Puerto Rico$15.00
- Rhode Island$29.50
- South Carolina$41.74
- South Dakota$54.90
- Tennessee$23.93
- Texas$61.65
- Utah$110.70
- Vermont$41.58
- Virginia$39.00
- Washington$40.70
- West Virginia$25.25
- Wisconsin$28.27
- Wyoming$22.80
Median cash price across the state's hospitals.