Phosphorus test cost in Alexandria, LA
In Alexandria, LA, 2 hospitals list a cash price for phosphorus (phosphate) blood test: from $33.28 to $123.45, with a median of $78.37. The lowest listed price is at St. Frances Cabrini Hospital — $45.09 less than the median here. Across Louisiana, the median is $16.78 at 56 hospitals.
Cash prices at 2 facilities 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 Jan 13, 2026 and Sep 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 Alexandria, LA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| St. Frances Cabrini Hospital lowest Alexandria, LA · (318) 487-1122 HC 84100 PHOSPHORUS (INORGANIC), SERUM | $33.28 | $128.00 | $4.65–$108.80 | 74% | Jan 13, 2026 source file |
| St. Frances Cabrini Hospital Alexandria, LA · (318) 487-1122 HC 84100 ASSAY OF PHOSPHORUS | $33.54 | $129.00 | $4.65–$109.65 | 74% | Jan 13, 2026 source file |
| Rapides Regional Medical Center Alexandria, LA · (318) 769-3000 PHOSPHORUS OTHER | $123.45 | $123.45 | $26.91–$99.99 | — | Sep 1, 2026 source file |
| Rapides Regional Medical Center Alexandria, LA · (318) 769-3000 PHOSPHORUS BLD | $146.93 | $146.93 | $32.03–$119.01 | — | Sep 1, 2026 source file |
Outpatient: lowest $33.28, median $78.37, highest $123.45 — a 3.7× difference within the same market.
Cash or insurance?
At 1 of 2 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 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.