California has 404 Medicare plans for 2027 across 58 counties, including 259 Medicare Advantage plans, 135 Special Needs Plans and 10 drug plans.
At a glance
- Medicare Advantage premiums: 176 of 259 Medicare Advantage plans have a $0 monthly premium. The highest is $382 a month.
- Drug plan premiums: $5.30 to $252.60 a month.
- Star ratings: 185 of 369 rated plans have 4 stars or more.
- Most plans by county: Los Angeles (134), Orange (121) and San Bernardino (105).
- Fewest plans by county: Colusa (10), Lake (10) and Trinity (10).
Each plan is counted once, even if it is offered in several areas. Premiums don't include the Medicare Part B premium, which most people pay as well.