Mumps immunity test cost in Ontario, CA
In Ontario, CA, 1 hospital lists a cash price for mumps immunity blood test: from $100.88 to $100.88, with a median of $100.88. Across California, the median is $19.43 at 175 hospitals.
Cash prices at 1 facility for code 86735, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Ontario Medical Center Campus Ontario, CA · (909) 427-5000 ANTIBODY MUMPS | $100.88 | $194.00 | $8.00–$25.00 | 48% | — source file |
Outpatient: lowest $100.88, median $100.88, highest $100.88.
As an inpatient, the same code is billed by 1 facility here, median $100.88. 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 the one hospital here that publishes insurer rates for this code, the cash price is not 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 mumps antibody test shows whether you are immune to mumps. It is often ordered with measles and rubella tests for school, work or travel when vaccine records are missing.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.