Mono test cost in Los Angeles, CA — inpatient
In Los Angeles-Long Beach-Anaheim, CA, 24 hospitals list a cash price for mono test (heterophile antibody, Monospot) as an inpatient: from $26.94 to $360.59, with a median of $87.33. The lowest listed price is at Hoag Memorial Hospital Presbyterian — $60.39 less than the median here. Across California, the median is $93.06 at 102 hospitals.
Cash prices at 24 facilities across 15 cities for code 86308, 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 |
|---|---|---|---|---|---|
| Hoag Memorial Hospital Presbyterian lowest Newport Beach, CA · (949) 764-4624 HC Heterophile Antibodies | $26.94 | $41.45 | — | 35% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA · (323) 783-4011 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA · (714) 279-4000 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - South Bay Harbor City, CA · (310) 325-5111 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA · (818) 719-3800 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Irvine Irvine, CA HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA · (818) 375-2000 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - Downey Downey, CA · (562) 461-6007 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - West la Los Angeles, CA · (213) 857-2201 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA · (626) 851-1011 HETEROPHILE ANTIBODIES SCREEN | $63.44 | $122.00 | $3.00–$10.00 | 48% | — source file |
| Mission Hospital Regional Med Center Mission Viejo, CA · (949) 364-1400 HC HETEROPHILE ANTIBODIES | $76.32 | $159.00 | — | 52% | Apr 1, 2026 source file |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC HETEROPHILE ANTIBODIES SCREEN LAB | $86.45 | $247.00 | — | 65% | Apr 1, 2026 source file |
| USC Arcadia Hospital Arcadia, CA · (626) 898-8000 MONO TEST SCREEN | $88.20 | $252.00 | $189.00–$252.00 | 65% | Jul 27, 2026 source file |
| Keck Hospital of USC Los Angeles, CA · (323) 442-8656 Heterophile Antibody Screen | $99.50 | $99.50 | — | — | Apr 1, 2026 source file |
| St Joseph Hospital of Orange Orange, CA · (714) 633-9111 HC HETEROPHILE ANTIBODIES | $108.00 | $225.00 | — | 52% | Apr 1, 2026 source file |
| USC Kenneth Norris Jr Cancer Hospital Los Angeles, CA Heterophile Antibody Screen | $125.75 | $125.75 | — | — | Apr 1, 2026 source file |
| UCI Health - Lakewood Orange, CA · (714) 456-7890 HETEROPHILE AB SCREEN | $140.00 | $350.00 | — | 60% | Apr 1, 2026 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 HB LAB ANTIBD MONO S ER | $140.82 | $216.65 | $7,175.00–$9,712.00 | 35% | Nov 26, 2025 source file |
| UCI Health - Fountain Valley Orange, CA · (714) 456-7890 HETEROPHILE AB SCREEN | $184.40 | $461.00 | — | 60% | Apr 1, 2026 source file |
| UCI Health - Los Alamitos Orange, CA · (714) 456-7890 HETEROPHILE AB SCREEN | $184.40 | $461.00 | — | 60% | Apr 1, 2026 source file |
| UCI Health-Orange Orange, CA · (714) 456-7890 HB HETEROPHILE ANTIBODIES SCREEN INFECT MONONUCLEOSIS | $184.40 | $461.00 | — | 60% | Apr 1, 2026 source file |
| UCI Health - Placentia Linda Orange, CA · (714) 456-7890 HETEROPHILE AB SCREEN | $184.40 | $461.00 | — | 60% | Apr 1, 2026 source file |
| St Jude Hospital Fullerton, CA · (714) 992-3000 HC HETEROPHILE ANTIBODIES | $243.36 | $507.00 | — | 52% | Apr 1, 2026 source file |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 HB LAB ANTIBD MONO S ER | $360.59 | $554.76 | $13,270.00–$14,761.00 | 35% | Nov 26, 2025 source file |
Inpatient: lowest $26.94, median $87.33, highest $360.59 — a 13.4× difference within the same market.
As an outpatient, the same code is billed by 31 facilities here, median $63.44 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 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
The mono test looks for antibodies the body makes during infectious mononucleosis, usually caused by the Epstein-Barr virus.
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 86308 ($48.57). 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.
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CAHC HETEROPHILE ANTIBODIES | $1.91 | file |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CAHC HETEROPHILE ANTIBODIES | $1.91 | file |
| Providence Little Company of Mary Medical Center Torrance Torrance, CAHC HETEROPHILE ANTIBODIES | $1.91 | file |
| Providence Saint Joseph Medical Center Burbank, CAHC HETEROPHILE ANTIBODIES | $1.91 | file |
| Saint John's Health Center Santa Monica, CAHC HETEROPHILE ANTIBODIES | $1.91 | file |
| Providence Holy Cross Medical Center Mission Hills, CAHC HETEROPHILE ANTIBODIES | $1.91 | file |