Mono test cost in California

In California, 201 hospitals publish a cash price for mono test (heterophile antibody, Monospot): from $5.60 to $978.56, with a median of $102.78. The lowest price is at Mountains Community Hospital (Lake Arrowhead). The highest price is 174.7× the lowest.

• The median here, $102.78, is 83% above the US median of $56.20.
• That is 19.8× Medicare's 2026 national rate for the same service ($5.18).
• California ranks 47th of 51 states by median, cheapest first.
• 62 of 201 hospitals list a cash price equal to their full list price, with no self-pay discount.

California law (Health and Safety Code §127405): if you are uninsured or have high medical costs and your family income is at or below 400% of the federal poverty level, a hospital may not expect you to pay more than it would expect from Medicare or Medi-Cal, whichever is greater. That can be less than the cash prices below; ask the hospital for its discount payment policy. A separate physician fee may still apply. Other states' laws.

Outpatient cash prices, one line per hospital — its lowest listed price for code 86308. Prices for both sides of the body and inpatient prices are not mixed in. Collected Nov 7, 2026. See them on a map