The largest Medicare market in America, a care map divided among Kaiser, UCLA, Cedars-Sinai, Keck USC, Providence and City of Hope — and the city where Anthem’s PPO exit for 2026 sent the most people shopping.
What to know before you compare plans in Los Angeles County
Los Angeles offers dozens of Advantage plans, many Dual Special Needs and Medi-Medi Plans, every Medigap carrier in California and the full Part D lineup. Plans work through delegated medical groups, so the same plan can mean UCLA doctors in Westwood and a different group in the Valley; Cedars-Sinai, UCLA, Keck and City of Hope each contract on their own terms, and Kaiser is reached only through Senior Advantage.
We compare what is sold at your ZIP code, confirm your doctors and their medical group, and check whether a Medicare Savings Program or Medi-Medi Plan applies.
Care close to home
Major care in the area includes:
Kaiser Permanente Los Angeles & West LA (Senior Advantage only)
UCLA Health
Cedars-Sinai
Keck Medicine of USC
Providence (Saint John’s, Holy Cross, Tarzana)
City of Hope
LA General Medical Center
VA Greater Los Angeles
Plan networks differ — we check that your doctors and hospital are covered before you enroll.
Communities we serve
Westwood, the Westside, Hollywood, Silver Lake, the San Fernando Valley, Downtown, Koreatown, Boyle Heights, South LA, San Pedro, Northeast LA.
When you can enroll
Turning 65? Your Initial Enrollment Period is the 7 months around your birthday. Already on Medicare? The Annual Election Period is Oct 15–Dec 7, Medicare Advantage Open Enrollment runs Jan 1–Mar 31, and California’s Medigap birthday rule gives you 60 days from your birthday each year to switch supplements without health questions.
Your options
Which kind of plan fits you in Los Angeles?
Medicare Advantage
All-in-one Part C plans, often $0 premium, built on a county network — the choice of about half of California, and the one that changed most for 2026.
Medigap pairs with Original Medicare and works with any provider nationwide — UCLA, Stanford, Cedars, City of Hope, or your doctor in Arizona — with California’s birthday rule to switch every year.
Which Medicare plans are available in Los Angeles?
Los Angeles County typically offers a deep Medicare Advantage menu, every Medigap carrier in California, and the full Part D lineup. Availability is set by county and changes each plan year. For 2026 Anthem’s Advantage PPOs left and Aetna reduced its plans here.
Does UCLA or Cedars-Sinai take my Advantage plan?
Each system contracts with some Medicare Advantage plans and not others, and the lists change every October. With Original Medicare and a Medigap policy there is no network to check, except Kaiser, which is reached only through Kaiser Senior Advantage. We confirm your doctors before you enroll.
Can I keep Kaiser?
Kaiser Permanente is a closed system: you keep Kaiser doctors on Medicare through Kaiser Senior Advantage, not through Original Medicare and a Medigap policy. If you are leaving Kaiser, or joining it, that is the first decision, and we walk through it plainly.
Written and reviewed by Darin Weidauer — licensed insurance agent (NPN 18580338, CA License #0M00978), Gerontologist (USC Leonard Davis School of Gerontology), MBA, Registered Social Security Analyst, and 22-year U.S. Air Force veteran.Last reviewed September 4, 2026. Plan availability, benefits and costs change every plan year — verify current details at Medicare.gov, 1-800-MEDICARE, or California HICAP at 1-800-434-0222.