Phosphorus test cost in Lafayette, LA — inpatient
In Lafayette, LA, 7 hospitals list a cash price for phosphorus (phosphate) blood test as an inpatient: from $5.10 to $30.15, with a median of $7.54. The lowest listed price is at Ochsner St. Martin Hospital — $2.44 less than the median here. Across Louisiana, the median is $16.28 at 58 hospitals.
Cash prices at 7 facilities across 6 cities for code 84100, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Jun 9, 2026 and Jun 9, 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 Lafayette, LA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Ochsner St. Martin Hospital lowest Breaux Bridge, LA · (337) 332-2178 HC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES source file | $5.10 | $17.00 | — | 70% |
| Acadia General Hospital Crowley, LA · (337) 783-3222 HC PHOSPHORUS+1 more line at this price source file | $5.98 | $26.00 | — | 77% |
| Abrom Kaplan Memorial Hospital Kaplan, LA · (337) 643-8300 HC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES source file | $6.30 | $14.00 | — | 55% |
| Ochsner University Hospital & Clinics Lafayette, LA · (337) 261-6000 HC PHOSPHORUS, FECES+1 more line at this price source file | $7.54 | $29.00 | — | 74% |
| Lafayette General Medical Center Lafayette, LA · (337) 289-7991 HC PHOSPHORUS, FECES+1 more line at this price source file | $13.02 | $62.00 | — | 79% |
| Ochsner St. Martin Hospital Breaux Bridge, LA · (337) 332-2178 HC PHOSPHORUS, FECES+1 more line at this price source file | $15.60 | $52.00 | — | 70% |
| Abrom Kaplan Memorial Hospital Kaplan, LA · (337) 643-8300 HC PHOSPHORUS+1 more line at this price source file | $20.70 | $46.00 | — | 55% |
| Acadia St Landry Church Point, LA · (337) 684-5435 LABCORP PHOSPHORUS+1 more line at this price source file | $21.33 | $28.44 | — | 25% |
| Acadian Medical Center Eunice, LA · (337) 580-7903 ASSAY OF PHOSPHORUS+1 more line at this price File of Jun 9, 2026 · source file | $30.15 | $100.50 | $3.79–$100.50 | 70% |
Inpatient: lowest $5.10, median $7.54, highest $30.15 — a 5.9× difference within the same market.
As an outpatient, the same code is billed by 7 facilities here, median $7.54 — 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 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.
3 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84100 ($41.60). 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.
| Hospital | Cash price | File |
|---|---|---|
| Acadia General Hospital Crowley, LAHC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES | $3.22 | file |
| Lafayette General Medical Center Lafayette, LAHC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES | $3.36 | file |
| Ochsner University Hospital & Clinics Lafayette, LAHC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES | $3.64 | file |