Potassium test cost in New York, NY — inpatient
In New York-Newark-Jersey City, NY-NJ, 29 hospitals list a cash price for potassium blood test as an inpatient: from $4.76 to $273.24, with a median of $14.57. The lowest listed price is at Jersey Shore University Medical Center — $9.81 less than the median here. Across New York, the median is $22.69 at 109 hospitals.
Cash prices at 29 facilities across 20 cities for code 84132, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Oct 28, 2025 and Aug 13, 2026.
Lowest$4.76Jersey Shore University Medical Center
Median$14.57half pay less
Highest$273.24in this market
Difference57.4×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in New York-Newark-Jersey City, NY-NJ.
median
Lowest $4.76Highest $310.50
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 I-STAT POTASSIUM SERUM PLASMA/WHOLE BLOOD | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM SERUM PLASMA/WHOLE BLOOD | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM SERUM | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM SERUM QST | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM RBC QST | $4.76 | $173.00 | $28.72–$173.00 | 97% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM PLASMA QST | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM SRM PLAS WB GEM | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Jersey Shore University Medical Center lowest Neptune City, NJ · (732) 775-5500 POTASSIUM-SERUM. | $4.76 | $65.00 | $10.79–$65.00 | 93% | Dec 31, 2025 source file |
| Overlook Medical Center Summit, NJ · (908) 522-2000 Potassium | $5.47 | $106.00 | — | 95% | — source file |
| Chilton Medical Center Pompton Plains, NJ · (973) 831-5000 Potassium | $5.47 | $176.00 | — | 97% | — source file |
| Newton Medical Center Newton, NJ · (973) 383-2121 Potassium | $5.47 | $222.00 | — | 98% | — source file |
| University Hospital Newark, NJ · (973) 972-4300 POTASSIUM SERUM PLASMA/WHOLE BLOOD | $5.47 | $48.90 | $1.70–$46.46 | 89% | Aug 13, 2026 source file |
| Morristown Medical Center Morristown, NJ · (973) 971-5450 Potassium | $5.47 | $120.00 | — | 95% | — source file |
| CentraState Medical Center Freehold Township, NJ · (732) 294-7012 Potassium | $5.47 | $70.00 | — | 92% | — source file |
| Hackensack Meridian Mountainside Medical Center Montclair, NJ · (973) 429-6000 Blood potassium level | $5.47 | $85.05 | $4.76–$85.05 | 94% | — source file |
| NYU Langone – Orthopedic Hospital New York, NY HC ASSAY OF SERUM POTASSIUM | $5.71 | $32.33 | $4.28–$25,798.00 | 82% | Jan 1, 2026 source file |
| NYU Langone Hospital - Suffolk Patchogue, NY · (631) 654-7100 HC ASSAY OF SERUM POTASSIUM | $5.71 | $32.33 | $4.28–$25,798.00 | 82% | Jan 1, 2026 source file |
| NYU Langone Mineola, NY HC ASSAY OF SERUM POTASSIUM | $5.71 | $32.33 | $4.28–$25,798.00 | 82% | Jan 1, 2026 source file |
| NYU Langone Brooklyn, NY HC ASSAY OF SERUM POTASSIUM | $5.71 | $32.33 | $4.28–$25,798.00 | 82% | Jan 1, 2026 source file |
| NYU Langone – Tisch Hospital New York, NY · (212) 263-7300 HC ASSAY OF SERUM POTASSIUM | $5.71 | $32.33 | $4.28–$25,798.00 | 82% | Jan 1, 2026 source file |
| Englewood Health Englewood, NJ · (201) 894-3000 Xpldbg Potassium 84132 | $6.50 | $65.00 | $5.08–$52.00 | 90% | Feb 2, 2026 source file |
| Englewood Health Englewood, NJ · (201) 894-3000 Potassium 84132 | $6.50 | $65.00 | $5.08–$52.00 | 90% | Feb 2, 2026 source file |
| Englewood Health Englewood, NJ · (201) 894-3000 Potassium-Serum. | $6.50 | $65.00 | $5.08–$52.00 | 90% | Feb 2, 2026 source file |
| New York Community Hospital of Brooklyn Brooklyn, NY · (718) 692-5302 POTASSIUM | $14.57 | $14.57 | — | — | Apr 1, 2026 source file |
| Nassau University Medical Center East Meadow, NY · (516) 572-0123 Chem Se Potass | $19.06 | $27.22 | — | 30% | Oct 28, 2025 source file |
| Nassau University Medical Center East Meadow, NY · (516) 572-0123 Whole Blood Potass. | $19.56 | $27.93 | — | 30% | Oct 28, 2025 source file |
| Maimonides Medical Center Brooklyn, NY · (718) 283-6000 ASSAY BLD POTASSIUM | $23.00 | $23.00 | — | — | Apr 1, 2026 source file |
| Maimonides Medical Center Brooklyn, NY · (718) 283-6000 POTASSIUM SERUM | $23.00 | $23.00 | — | — | Apr 1, 2026 source file |
| The Valley Hospital Paramus, NJ · (201) 447-8000 POTASSIUM SERUM OR WH BLD | $30.60 | $51.00 | $3.81–$43.35 | 40% | — source file |
| Hunterdon Medical Center Flemington, NJ · (908) 788-6100 POTASSIUM SERUM | $33.49 | $107.00 | $85.60–$90.95 | 69% | — source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Blood Potassium Art POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Blood Potassium Cap POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC Blood Potassium POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC Blood Potassium | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC Serum Potassium Plsm Whol Bld | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC Serum Potassium Plsm Whol Bld | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC Blood Potassium | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC Blood Potassium POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC Blood Potassium Ven POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC Blood Potassium Art POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC Blood Potassium Cap POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC Blood Potassium POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Morningside New York, NY HC Blood Potassium Art POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Morningside New York, NY HC Blood Potassium Ven POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Morningside New York, NY HC Blood Potassium POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Morningside New York, NY HC Blood Potassium | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Morningside New York, NY HC Serum Potassium Plsm Whol Bld | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Morningside New York, NY HC Blood Potassium Cap POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC Blood Potassium Ven POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC Blood Potassium Art POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC Blood Potassium Cap POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC Blood Potassium Art POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC Blood Potassium Ven POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Serum Potassium Plsm Whol Bld | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Blood Potassium | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Blood Potassium POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC Blood Potassium Ven POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC Blood Potassium Cap POCT | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC Serum Potassium Plsm Whol Bld | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC Blood Potassium | $49.50 | $55.00 | — | 10% | Apr 1, 2026 source file |
| Westchester Medical Center Valhalla, NY · (914) 493-7000 ASSAY OF SERUM POTASSIUM | $59.00 | $59.00 | $17.70–$59.00 | — | Jul 28, 2026 source file |
| Good Samaritan Hospital Suffern, NY · (914) 368-5000 Potassium Level | $76.00 | $76.00 | $22.80–$53.20 | — | Jun 29, 2026 source file |
| Good Samaritan Hospital Suffern, NY · (914) 368-5000 84132 -Potassium; serum, plasma or whole blood | $76.00 | $76.00 | $22.80–$53.20 | — | Jun 29, 2026 source file |
| University Hospital of Brooklyn Brooklyn, NY · (718) 270-1000 84132 - ASSAY OF SERUM POTASSIUM | $85.00 | $85.00 | $3.00–$83.00 | — | — source file |
| New York Community Hospital of Brooklyn Brooklyn, NY · (718) 692-5302 POTASSIUM, S, P, WB | $93.87 | $93.87 | — | — | Apr 1, 2026 source file |
| Saint Peters University Hospital New Brunswick, NJ · (732) 745-8600 POC POTASSIUM LEVEL | $226.00 | $229.00 | $3.00–$229.00 | 1% | — source file |
| Saint Peters University Hospital New Brunswick, NJ · (732) 745-8600 POTASSIUM LEVEL | $257.00 | $261.00 | $3.00–$261.00 | 2% | — source file |
| New York Eye and Ear Infirmary of Mount Sinai New York, NY · (212) 979-4000 POTASSIUM | $273.24 | $303.60 | — | 10% | Apr 1, 2026 source file |
| New York Eye and Ear Infirmary of Mount Sinai New York, NY · (212) 979-4000 ISTAT LAB-POTASSIUM,SERUM | $273.24 | $303.60 | — | 10% | Apr 1, 2026 source file |
| New York Eye and Ear Infirmary of Mount Sinai New York, NY · (212) 979-4000 ISTAT - POTASSIUM, BLD,SRM,PLS | $310.50 | $345.00 | — | 10% | Apr 1, 2026 source file |
Inpatient: lowest $4.76, median $14.57, highest $273.24 — a 57.4× difference within the same market.
As an outpatient, the same code is billed by 69 facilities here, median $5.71 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 12 of 15 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
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.
3 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84132 ($37.67). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Brookdale Hospital Medical Center Brooklyn, NYPOTASSIUM-SERUM | $0.01 | file |
| Interfaith Medical Center Brooklyn, NYPOTASSIUM-SERUM | $0.01 | file |
| Kingsbrook Jewish Medical Center Brooklyn, NYPOTASSIUM-SERUM | $0.01 | file |