Phosphorus test cost in Los Angeles, CA — inpatient
In Los Angeles-Long Beach-Anaheim, CA, 44 hospitals list a cash price for phosphorus (phosphate) blood test as an inpatient: from $8.40 to $216.00, with a median of $80.08. The lowest listed price is at Mission Hospital Regional Med Center and 2 other hospitals — $71.68 less than the median here. Across California, the median is $75.60 at 198 hospitals.
Cash prices at 44 facilities across 29 cities for code 84100, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Nov 26, 2025 and Jul 27, 2026.
Lowest$8.40Mission Hospital Regional Med Center + 2 more
Median$80.08half of hospitals charge less
Highest$216.00in this market
Difference25.7×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Los Angeles-Long Beach-Anaheim, CA.
median
Lowest $8.40Highest $216.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Mission Hospital Regional Med Center lowest Mission Viejo, CA · (949) 364-1400 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $8.40 | $17.50 | — | 52% |
| Providence St Joseph Hospital Orange lowest Orange, CA · (714) 633-9111 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $8.40 | $17.50 | — | 52% |
| St Jude Hospital lowest Fullerton, CA · (714) 992-3000 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $8.40 | $17.50 | — | 52% |
| UCI Health - Placentia Linda Orange, CA · (714) 456-7890 PHOSPHORUS File of Apr 1, 2026 · source file | $10.40 | $26.00 | — | 60% |
| UCI Health-Orange Orange, CA · (714) 456-7890 HB ASSAY OF PHOSPHORUS INORGANIC File of Apr 1, 2026 · source file | $10.40 | $26.00 | — | 60% |
| UCI Health - Los Alamitos Orange, CA · (562) 799-3220 PHOSPHORUS File of Apr 1, 2026 · source file | $10.40 | $26.00 | — | 60% |
| UCI Health - Fountain Valley Orange, CA · (714) 966-7200 PHOSPHORUS File of Apr 1, 2026 · source file | $10.40 | $26.00 | — | 60% |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 HB SLYT ASSAY OF PHOSPHORUS+1 more line at this price File of Nov 26, 2025 · source file | $10.53 | $16.20 | $13,270.00–$14,761.00 | 35% |
| Hoag Memorial Hospital Presbyterian Newport Beach, CA · (949) 764-4624 HC Assay Phosphorus File of Apr 1, 2026 · source file | $18.26 | $28.09 | — | 35% |
| Chapman Global Medical Center Orange, CA · (714) 633-0011 PHOSPHORUS File of May 6, 2026 · source file | $26.00 | $26.00 | $13.65–$26.00 | — |
| Orange County Global Medical Center Santa Ana, CA · (714) 953-3500 PHOSPHORUS File of Jun 15, 2026 · source file | $26.00 | $26.00 | $15.60–$26.00 | — |
| Anaheim Global Medical Center Anaheim, CA · (714) 533-6220 PHOSPHORUS File of Jun 15, 2026 · source file | $26.00 | $26.00 | $13.65–$26.00 | — |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $37.80 | $108.00 | — | 65% |
| St Mary Medical Center Long Beach, CA · (562) 491-9000 PHOSPHORUS File of Feb 28, 2026 · source file | $55.47 | $129.00 | $90.30–$129.00 | 57% |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $59.50 | $170.00 | — | 65% |
| Glendale Memorial Hospital & Health Center Glendale, CA · (818) 502-1900 PHOSPHORUS File of Feb 28, 2026 · source file | $61.94 | $190.00 | $106.40–$152.00 | 67% |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $64.75 | $185.00 | — | 65% |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA · (310) 540-7676 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $71.75 | $205.00 | — | 65% |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CA · (310) 832-3311 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $71.75 | $205.00 | — | 65% |
| USC Arcadia Hospital Arcadia, CA · (626) 898-8000 PHOSPHORUS File of Jul 27, 2026 · source file | $76.30 | $218.00 | $163.50–$218.00 | 65% |
| Kaiser Foundation Hospital - West LA Los Angeles, CA · (213) 857-2201 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA · (323) 783-4011 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA · (818) 719-3800 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Fnd Hospital - Irvine Irvine, CA · (714) 279-4000 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Downey Downey, CA · (562) 461-6007 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA · (818) 375-2000 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA · (714) 279-4000 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - South Bay Harbor City, CA · (310) 325-5111 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA · (626) 851-1011 ASSAY OF PHOSPHORUS INORGANIC source file | $80.08 | $154.00 | $3.00–$10.00 | 48% |
| Keck Hospital of USC Los Angeles, CA · (323) 442-8656 Assay Of Phosphorus File of Apr 1, 2026 · source file | $80.50 | $80.50 | — | — |
| California Hospital Medical Center LA Los Angeles, CA · (213) 748-2411 PHOSPHORUS File of Feb 28, 2026 · source file | $90.70 | $187.00 | $129.03–$147.73 | 51% |
| Saint John's Health Center Santa Monica, CA · (310) 829-5511 HC ASSAY PHOSPHORUS File of Apr 1, 2026 · source file | $100.10 | $286.00 | — | 65% |
| UCI Health - Lakewood Orange, CA · (562) 602-6751 PHOSPHORUS File of Apr 1, 2026 · source file | $125.60 | $314.00 | — | 60% |
| USC Kenneth Norris Jr Cancer Hospital Los Angeles, CA Assay Of Phosphorus File of Apr 1, 2026 · source file | $144.50 | $144.50 | — | — |
| Southern California Hospital at Van Nuys D/P Aph Van Nuys, CA · (323) 462-2271 PHOSPHOROUS (Chem) File of Mar 18, 2026 · source file | $173.83 | $173.83 | $121.68–$149.49 | — |
| Southern California Hospital at Hollywood Hollywood, CA · (323) 462-2271 PHOSPHOROUS (Chem) File of Mar 18, 2026 · source file | $173.83 | $173.83 | $121.68–$149.49 | — |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 HB LAB PHOSPHOR SE AU File of Nov 26, 2025 · source file | $186.57 | $287.03 | $7,175.00–$9,712.00 | 35% |
| Foothill Regional Medical Center Tustin, CA · (714) 619-7700 PHOSPHOROUS (Chem) File of Mar 18, 2026 · source file | $196.86 | $196.86 | $137.80–$169.30 | — |
| Memorial Hospital of Gardena Gardena, CA · (310) 532-4200 ASSAY OF PHOSPHORUS File of Feb 4, 2026 · source file | $199.50 | $199.50 | $149.63–$159.60 | — |
| Community Hospital of Huntington Park Huntington Park, CA · (323) 583-1931 ASSAY OF PHOSPHORUS File of Feb 4, 2026 · source file | $199.50 | $199.50 | $139.65–$159.60 | — |
| East Los Angeles Doctors Hospital Los Angeles, CA · (323) 268-5514 ASSAY OF PHOSPHORUS File of Feb 4, 2026 · source file | $199.50 | $199.50 | $139.65–$159.60 | — |
| Coast Plaza Doctors Hospital Norwalk, CA · (310) 532-4200 ASSAY OF PHOSPHORUS File of Feb 4, 2026 · source file | $199.50 | $199.50 | $139.65–$159.60 | — |
| Los Angeles Community Hospital Los Angeles, CA · (323) 267-0477 PHOSPHOROUS (Chem) File of Mar 18, 2026 · source file | $212.98 | $212.98 | $56.65–$183.16 | — |
| Childrens Hospital at Mission - Cerner Mission Viejo, CA · (949) 365-2408 PHOSPHORUS File of Mar 18, 2026 · source file | $216.00 | $216.00 | $97.20–$216.00 | — |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
Inpatient: lowest $8.40, median $80.08, highest $216.00 — a 25.7× difference within the same market.
As an outpatient, the same code is billed by 44 facilities here, median $80.08 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 6 of 27 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 6 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.
3 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 |
|---|---|---|
| Chapman Global Medical Center Orange, CAPHOSPHORUS - LC | $2.00 | file |
| Orange County Global Medical Center Santa Ana, CAPHOSPHORUS - LC | $2.00 | file |
| Anaheim Global Medical Center Anaheim, CAPHOSPHORUS - LC | $2.00 | file |
File Link to the hospital's own price file.