Homocysteine test cost in Los Angeles, CA — inpatient
In Los Angeles-Long Beach-Anaheim, CA, 25 hospitals list a cash price for homocysteine blood test as an inpatient: from $18.80 to $157.85, with a median of $76.80. The lowest listed price is at UCI Health-Orange and 1 other hospital — $58.00 less than the median here. Across California, the median is $76.80 at 90 hospitals.
Cash prices at 25 facilities across 19 cities for code 83090, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 26, 2025 and Jul 27, 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 Los Angeles-Long Beach-Anaheim, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| UCI Health-Orange lowest Orange, CA · (714) 456-7890 HB ASSAY OF HOMOCYSTEINE | $18.80 | $47.00 | — | 60% | Apr 1, 2026 source file |
| UCI Health - Los Alamitos lowest Orange, CA · (714) 456-7890 HOMOCYSTEINE QUANT | $18.80 | $47.00 | — | 60% | Apr 1, 2026 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 HB URN HOMOCYSTINE | $25.22 | $38.80 | $7,175.00–$9,712.00 | 35% | Nov 26, 2025 source file |
| UCI Health-Orange Orange, CA · (714) 456-7890 HB LAB QUEST ZIQHM ASSAY OF HOMOCYSTEINE (UCI ONLY) | $28.00 | $70.00 | — | 60% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA · (818) 719-3800 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Irvine Irvine, CA ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA · (818) 375-2000 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Downey Downey, CA · (562) 461-6007 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA · (714) 279-4000 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - South Bay Harbor City, CA · (310) 325-5111 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA · (626) 851-1011 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - West la Los Angeles, CA · (213) 857-2201 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA · (323) 783-4011 ASSAY OF HOMOCYSTEINE | $28.08 | $54.00 | $12.00–$35.00 | 48% | — source file |
| Mission Hospital Regional Med Center Mission Viejo, CA · (949) 364-1400 HC ASSAY OF HOMOCYSTEINE LAB | $76.80 | $160.00 | — | 52% | Apr 1, 2026 source file |
| St Joseph Hospital of Orange Orange, CA · (714) 633-9111 HC ASSAY OF HOMOCYSTEINE LAB | $76.80 | $160.00 | — | 52% | Apr 1, 2026 source file |
| St Jude Hospital Fullerton, CA · (714) 992-3000 HC ASSAY OF HOMOCYSTEINE LAB | $76.80 | $160.00 | — | 52% | Apr 1, 2026 source file |
| USC Arcadia Hospital Arcadia, CA · (626) 898-8000 HOMOCYSTEINE PLASMA | $79.45 | $227.00 | $170.25–$227.00 | 65% | Jul 27, 2026 source file |
| USC Kenneth Norris Jr Cancer Hospital Los Angeles, CA Assay Of Homocystine | $88.25 | $88.25 | — | — | Apr 1, 2026 source file |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CA · (310) 832-3311 HC ASSAY OF HOMOCYSTEINE LAB | $88.90 | $254.00 | — | 65% | Apr 1, 2026 source file |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA · (310) 540-7676 HC ASSAY OF HOMOCYSTEINE LAB | $88.90 | $254.00 | — | 65% | Apr 1, 2026 source file |
| Keck Hospital of USC Los Angeles, CA · (323) 442-8656 Assay Of Homocystine | $93.50 | $93.50 | — | — | Apr 1, 2026 source file |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC ASSAY OF HOMOCYSTEINE LAB | $98.00 | $280.00 | — | 65% | Apr 1, 2026 source file |
| Saint John's Health Center Santa Monica, CA · (310) 829-5511 HC ASSAY OF HOMOCYSTEINE LAB | $98.70 | $282.00 | — | 65% | Apr 1, 2026 source file |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC ASSAY OF HOMOCYSTEINE LAB | $120.75 | $345.00 | — | 65% | Apr 1, 2026 source file |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 HB LAB HOMOCYSTEINE | $135.66 | $208.71 | $13,270.00–$14,761.00 | 35% | Nov 26, 2025 source file |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC ASSAY OF HOMOCYSTEINE LAB | $157.85 | $451.00 | — | 65% | Apr 1, 2026 source file |
Inpatient: lowest $18.80, median $76.80, highest $157.85 — a 8.4× difference within the same market.
As an outpatient, the same code is billed by 28 facilities here, median $28.08 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 12 of 12 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 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 homocysteine test measures an amino acid that rises with low vitamin B12 or folate and in some inherited conditions.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
5 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 83090 ($98.90). 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.
| UCI Health - Lakewood Orange, CAHOMOCYSTEINE QUANT/2 | $4.00 | file |
| UCI Health - Fountain Valley Orange, CAHOMOCYSTEINE QUANT/2 | $4.89 | file |
| UCI Health - Placentia Linda Orange, CAHOMOCYSTEINE QUANT/2 | $4.89 | file |
| UCI Health-Orange Orange, CAHB LAB ARUP HOMOCYSTEINE, TOTAL (UCI ONLY) | $6.96 | file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CAHC Assay of Homocysteine # | $9.76 | file |