Potassium test cost in Santa Rosa, CA — inpatient
In Santa Rosa-Petaluma, CA, 5 hospitals list a cash price for potassium blood test as an inpatient: from $37.74 to $169.32, with a median of $143.31. The lowest listed price is at Healdsburg Hospital — $105.57 less than the median here. Across California, the median is $73.26 at 212 hospitals.
Cash prices at 5 facilities across 3 cities for code 84132, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Santa Rosa-Petaluma, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Healdsburg Hospital lowest Healdsburg, CA · (707) 431-6500 HC POTASSIUM | $37.74 | $74.00 | — | 49% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa, CA · (707) 571-4000 POTASSIUM SERUM PLASMA/WHOLE BLOOD | $104.16 | $186.00 | $5.00–$15.00 | 44% | — source file |
| Providence Santa Rosa Memorial Hospital Santa Rosa, CA · (707) 525-5300 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $143.31 | $281.00 | — | 49% | Apr 1, 2026 source file |
| Providence Santa Rosa Memorial Hospital Santa Rosa, CA · (707) 525-5300 HC POTASSIUM | $143.31 | $281.00 | — | 49% | Apr 1, 2026 source file |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG POCT POTASSIUM | $155.00 | $155.00 | — | — | Apr 1, 2026 source file |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG POTASSIUM | $155.00 | $155.00 | — | — | Apr 1, 2026 source file |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG POTASSIUM FLUID | $155.00 | $155.00 | — | — | Apr 1, 2026 source file |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG CORE POTASSIUM | $155.00 | $155.00 | — | — | Apr 1, 2026 source file |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG ASSAY OF SERUM POTASSIUM | $155.00 | $155.00 | — | — | Apr 1, 2026 source file |
| Petaluma Valley Hospital Petaluma, CA · (707) 778-1111 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD | $169.32 | $332.00 | — | 49% | Apr 1, 2026 source file |
| Petaluma Valley Hospital Petaluma, CA · (707) 778-1111 HC POTASSIUM | $169.32 | $332.00 | — | 49% | Apr 1, 2026 source file |
Inpatient: lowest $37.74, median $143.31, highest $169.32 — a 4.5× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $71.21 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. 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.