Phosphorus test cost in Red Bluff, CA
In Red Bluff, CA, 1 hospital lists a cash price for phosphorus (phosphate) blood test: from $10.52 to $10.52, with a median of $10.52. Across California, the median is $75.60 at 198 hospitals.
Cash prices at 1 facility for code 84100, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 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 Red Bluff, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| St Elizabeth Community Hospital lowest Red Bluff, CA · (530) 529-8000 PHOSPHORUS NONL | $10.52 | $18.00 | $4.21–$17.64 | 42% | Feb 28, 2026 source file |
| St Elizabeth Community Hospital Red Bluff, CA · (530) 529-8000 PHOSPHORUS | $12.85 | $22.00 | $4.21–$21.56 | 42% | Feb 28, 2026 source file |
Outpatient: lowest $10.52, median $10.52, highest $10.52.
As an inpatient, the same code is billed by 1 facility here, median $10.52. 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 the one hospital here that publishes insurer rates for this code, the cash price is 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 phosphorus test measures phosphate in the blood. It is used with calcium for kidney disease, bone disease and parathyroid problems.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
2 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84100 ($42.37). 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.
| St Elizabeth Community Hospital Red Bluff, CARL-SR-PHOSPHORUS | $2.77 | file |
| St Elizabeth Community Hospital Red Bluff, CARL-A-PHOS 20028 | $3.78 | file |