Need to know
- Cost: Free to apply; Medi-Cal is free or low-cost for people who qualify.
- Deadlines: None — you can apply year-round.
- Processing times: Varies by case; you’ll get a notice after your application is reviewed.
- Penalties: None for applying. If you already have coverage, report changes to your county office to avoid problems with renewals.
Before you start
Have this information ready (if you can):
- Names, birthdates, and Social Security numbers (if you have them) for people applying
- Proof you live in California (example: address and mailing address)
- Income details (pay stubs, benefit letters, or recent tax info)
- Immigration documents if they apply to you (some immigrants may still qualify)
If you’re not sure what you qualify for, you can still apply—Marin County will screen you for Medi-Cal and other options like CMSP.
What to do
Apply online (fastest for most people)
Apply by phone
- Call Marin Public Assistance / Medi-Cal: 877-410-8817
- Call center hours: Monday–Wednesday, Friday (closed Thursday), 7:30 a.m.–12 p.m. and 1 p.m.–4 p.m.
Apply in person (Marin County locations)
- 120 N. Redwood Drive, San Rafael, CA 94903 (8 a.m.–12 p.m., 1 p.m.–4:30 p.m.)
- 3240 Kerner Blvd., San Rafael, CA 94901 (8 a.m.–12 p.m., 1 p.m.–4 p.m.)
- 16th St., Point Reyes Station, CA 94956 (9 a.m.–12 p.m., 1 p.m.–4:30 p.m.)
Apply by mail
- Mail your application to: PO Box 4160, San Rafael, CA 94913
- Apply by fax
- Fax: (415) 473-355