Phosphorus test cost in Riverside, CA
In Riverside-San Bernardino-Ontario, CA, 22 hospitals list a cash price for phosphorus (phosphate) blood test: from $5.44 to $348.00, with a median of $77.85. The lowest listed price is at Palo Verde Hospital — $72.41 less than the median here. Across California, the median is $75.60 at 198 hospitals.
Cash prices at 22 facilities across 18 cities for code 84100, 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 Sep 17, 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 Riverside-San Bernardino-Ontario, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Palo Verde Hospital lowest Blythe, CA · (760) 922-4115 Phosphorus LC File of Jul 1, 2026 · source file | $5.44 | $7.25 | — | 25% |
| St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $8.40 | $17.50 | — | 52% |
| San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 PHOSPHATE LEVEL source file | $10.26 | $51.31 | $4.50–$51.31 | 80% |
| San Gorgonio Memorial Hospital Banning, CA · (951) 769-2101 ASSAY OF PHOSPHORUS source file | $10.62 | $53.11 | $4.50–$53.11 | 80% |
| Mountains Community Hospital Lake Arrowhead, CA · (909) 336-3651 PHOSPHORUS source file | $11.20 | $28.00 | $12.60–$23.80 | 60% |
| St Bernardine Medical Center San Bernardino, CA · (909) 883-8711 PHOSPHORUS File of Feb 28, 2026 · source file | $12.99 | $39.00 | $4.08–$39.00 | 67% |
| Bear Valley Community Hospital Big Bear Lake, CA · (909) 866-6501 PHOSPHORUS source file | $14.00 | $20.00 | $4.50–$17.00 | 30% |
| Community Hospital of San Bernardino San Bernardino, CA · (909) 887-6333 PHOSPHORUS File of Feb 28, 2026 · source file | $14.86 | $38.00 | $4.74–$38.00 | 61% |
| Victor Valley Global Medical Center Victorville, CA · (760) 245-8691 PHOSPHORUS BLOOD File of May 13, 2026 · source file | $35.00 | $35.00 | $2.90–$49.00 | — |
| Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC PHOSPHORUS File of Sep 2, 2026 · source file | $77.85 | $173.00 | $3.84–$155.70 | 55% |
| Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC PHOSPHORUS File of Sep 2, 2026 · source file | $77.85 | $173.00 | $3.84–$147.05 | 55% |
| Loma Linda University Behavioral Medicine Center Redlands, CA HC PHOSPHORUS File of Aug 31, 2026 · source file | $77.85 | $173.00 | $4.74–$138.40 | 55% |
| Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC PHOSPHORUS File of Sep 2, 2026 · source file | $77.85 | $173.00 | $4.74–$129.75 | 55% |
| Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Menifee Global Medical Center Menifee, CA · (951) 679-8888 LAB PHOSPHORUS INORGANIC File of May 20, 2026 · source file | $84.00 | $84.00 | $4.21–$84.00 | — |
| Hemet Global Medical Center Hemet, CA · (951) 652-2811 LAB PHOSPHORUS INORGANIC File of Jun 15, 2026 · source file | $84.00 | $84.00 | $4.21–$84.00 | — |
| Palo Verde Hospital Blythe, CA · (760) 922-4115 Phosphorus File of Jul 1, 2026 · source file | $85.50 | $114.00 | — | 25% |
| Riverside University Medical Center Moreno Valley, CA · (951) 486-4000 HC Phosphorous+1 more line at this price source file | $184.13 | $184.13 | $3.37–$184.13 | — |
| San Antonio Regional Hospital Upland, CA · (909) 985-2811 Phosphate level File of Apr 2, 2026 · source file | $185.00 | $386.00 | $3.79–$709.28 | 52% |
| Barstow Community Hospital Barstow, CA · (760) 256-1761 Phosphate level File of Sep 17, 2026 · source file | $308.39 | $513.98 | $5.44–$411.18 | 40% |
| Riverside Community Hospital Riverside, CA · (951) 788-3000 PHOSPHORUS BLD+1 more line at this price File of Sep 1, 2026 · source file | $348.00 | $348.00 | $4.74–$313.20 | — |
Outpatient: lowest $5.44, median $77.85, highest $348.00 — a 64.0× difference within the same market.
As an inpatient, the same code is billed by 17 facilities here, median $80.08. 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 12 of 20 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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.
6 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84100 ($42.00). 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 |
|---|---|---|
| Eisenhower Medical Center Rancho Mirage, CAHC Phosphorus Blood | $2.35 | file |
| Riverside University Medical Center Moreno Valley, CAHC Qu Chem Test 15 Phos Ppnl | $2.57 | file |
| Riverside University Medical Center Moreno Valley, CAHC Qu Chem Test 15 Phos Ppnl | $2.57 | file |
| Montclair Hospital Medical Center Montclair, CAHc Assay Of Inorganic Phosphorus | $4.00 | file |
| Chino Valley Medical Center Chino, CAHc Assay Of Inorganic Phosphorus | $4.00 | file |
| Desert Valley Hospital Victorville, CAPHOSPHORUS | $4.00 | file |