Access and Care for Everyone (ACE)
A San Mateo County administered medical insurance plan for low-income adults who do not qualify for Medi-Cal. ACE will provide coverage at County hospitals and clinics and emergency services elsewhere.
Eligibility:

• Adults age 19 and above who are not eligible for other state and federal insurance programs.

Medi-Cal
A low cost medical insurance program for low-income children, individuals who are 65+ years old, and individuals who are disabled. There are a wide variety of programs, but the two most common are Restricted Medi-Cal (for undocumented families and/or individuals who are elderly or disabled) and Full Scope Medi-Cal (for resident and citizen families and/or individuals who are elderly or disabled).
Eligibility:

• ​Low-income Californians, including adults, children and their families, persons with disabilities, children in foster care, former foster youth up to age 26, and pregnant individuals

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Covered California 

​Family PACT
Family PACT covers the family planning needs of California residents who are low-income and who have no other source of coverage.  
Eligibility:

• must be a resident of California at the time of applying 
• must be able to get pregnant or cause a pregnancy
• income must be at or below 200% of the federal poverty income guidelines
• must have no other health care that covers your family planning needs. If you have other health care including Medi-Cal, you can still enroll.