Potassium test cost in Stockton, CA
In Stockton-Lodi, CA, 4 hospitals list a cash price for potassium blood test: from $49.69 to $227.53, with a median of $129.58. The lowest listed price is at St Joseph's Medical Center of Stockton — $79.89 less than the median here. Across California, the median is $73.26 at 208 hospitals.
Cash prices at 4 facilities across 3 cities for code 84132, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Apr 2, 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 Stockton-Lodi, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| St Joseph's Medical Center of Stockton lowest Stockton, CA · (209) 943-2000 SJM-POTASUM SRM/BLD/PLASM File of Feb 28, 2026 · source file | $49.69 | $169.00 | $4.05–$138.58 | 71% |
| Kaiser Foundation Hospital - Manteca Manteca, CA · (209) 825-3700 POTASSIUM SERUM PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $104.16 | $186.00 | $5.00–$15.00 | 44% |
| Sutter Tracy Community Hospital Tracy, CA · (209) 835-1500 HCHG POTASSIUM+1 more line at this price File of Apr 1, 2026 · source file | $155.00 | $155.00 | — | — |
| St Joseph's Medical Center of Stockton Stockton, CA · (209) 943-2000 POTASSIUM SERUM/BLD/PLASM File of Feb 28, 2026 · source file | $167.58 | $570.00 | $4.05–$467.40 | 71% |
| Dameron Hospital Stockton, CA · (209) 944-5550 Blood potassium level File of Apr 2, 2026 · source file | $227.53 | $505.62 | $3.81–$505.11 | 55% |
Outpatient: lowest $49.69, median $129.58, highest $227.53 — a 4.6× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $104.16. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 2 of 3 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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.