Sodium test cost in Santa Rosa, CA — inpatient
In Santa Rosa-Petaluma, CA, 5 hospitals list a cash price for sodium blood test as an inpatient: from $39.78 to $143.82, with a median of $132.00. The lowest listed price is at Healdsburg Hospital — $92.22 less than the median here. Across California, the median is $65.52 at 208 hospitals.
Cash prices at 5 facilities across 3 cities for code 84295, 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 |
|---|---|---|---|---|
| Healdsburg Hospital lowest Healdsburg, CA · (707) 431-6500 HC SODIUM File of Apr 1, 2026 · source file | $39.78 | $78.00 | — | 49% |
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa, CA · (707) 571-4000 SODIUM SERUM PLASMA OR WHOLE BLOOD source file | $95.20 | $170.00 | $5.00–$15.00 | 44% |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG POCT SODIUM+1 more line at this price File of Apr 1, 2026 · source file | $132.00 | $132.00 | — | — |
| Providence Santa Rosa Memorial Hospital Santa Rosa, CA · (707) 525-5300 HC SODIUM+1 more line at this price File of Apr 1, 2026 · source file | $143.31 | $281.00 | — | 49% |
| Petaluma Valley Hospital Petaluma, CA · (707) 778-1111 HC SODIUM SERUM PLASMA OR WHOLE BLOOD CDM+1 more line at this price File of Apr 1, 2026 · source file | $143.82 | $282.00 | — | 49% |
Inpatient: lowest $39.78, median $132.00, highest $143.82 — a 3.6× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $67.49 — 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 sodium test measures the level of sodium in the blood. It is used for confusion, weakness, dehydration and for people on diuretics or with heart, kidney or liver disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.