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HomeMedicare 2026CaliforniaSan LeandroHave Medicare in San Leandro? Your AEP Checklist

Medicare 2026

Have Medicare in San Leandro? Your AEP Checklist

SAN LEANDRO, Calif. — The fall window to review Medicare coverage is open. From October 15 through December 7, people with Medicare across Alameda County can compare plans, switch, or make changes that take effect January 1, 2027. Missing that date usually means waiting another year.

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This helps match you with options you’re eligible for.

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This affects which Medicare options you can choose.

Medicare options in your area

These listings are provided by licensed insurance partners.

2027 PLAN ALERT

Medicare Advantage plans in your area are changing or leaving for 2027.

One call tells you whether your plan is on the list — before enrollment opens.

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Annual Enrollment: Oct 15 – Dec 7

Advertising disclosure: MyMedicarePlans.org may be compensated when you contact a partner or licensed agent. Listings are not ranked or endorsed by us, and we do not recommend specific plans. You can also contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

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BEFORE YOU ENROLL

Found a plan you like online?

One free call confirms it's actually right for you — online directories are wrong more often than you'd think.

  • Your doctors — confirmed in-network for 2027
  • Your prescriptions — checked against the plan's 2027 drug tiers
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Person reviewing paperwork at home in San Leandro — illustrating this Medicare guide
Photo: Zach Reiner Photo by Zach Reiner on Unsplash

Key takeaways

  • The Annual Enrollment Period runs October 15 through December 7, and any changes you make take effect January 1, 2027.
  • During AEP you can switch between Original Medicare and Medicare Advantage, change Advantage plans, or join, switch, or drop a Part D drug plan.
  • The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027. The maximum Part D deductible is $615 in 2026 and $700 in 2027.
  • Free, unbiased help is available from Medicare (1-800-MEDICARE) and California's SHIP program, called HICAP, which serves San Leandro residents through Alameda County.

This is also the season when the 2027 program numbers come into focus, including the annual cap on what you pay out of pocket for Part D prescription drugs, which rises to $2,400. Here is a plain-English guide to what you can actually do during the Annual Enrollment Period (AEP), and how to decide.

What the Annual Enrollment Period actually lets you do

AEP is the once-a-year window when almost anyone with Medicare can make coverage changes without needing a special reason. During October 15 – December 7, you can:

Whatever you choose takes effect on January 1, 2027. If you do nothing, your current coverage generally rolls over into next year — but the plan itself may have changed, which is why a yearly review matters.

Read your Annual Notice of Change

By late September, your current Medicare Advantage or Part D plan should have sent an Annual Notice of Change (ANOC). It spells out what is different for 2027 — premium, deductible, drug list (formulary), pharmacy network, and provider network.

Two questions to ask as you read it:

1. Are the doctors, hospitals, and pharmacies I use still in-network next year? 2. Are the specific medications I take still covered, and at what tier?

If the answer to either question is no, that's a strong signal to compare other options before December 7.

The 2027 numbers to keep in mind

A few program-level facts apply no matter which plan you pick:

How to compare plans without getting overwhelmed

San Leandro is in Alameda County, where Medicare beneficiaries typically have a wide range of Medicare Advantage and stand-alone Part D plans to choose from. That's good news, but it can be a lot to sort through. A simple approach:

1. List your must-haves. Your doctors, your preferred hospital (many locals use facilities in San Leandro, Oakland, or Hayward), your regular pharmacy, and every prescription you take with dose and frequency. 2. Use the Plan Finder at medicare.gov. Enter your ZIP code and your drug list. The tool will estimate your yearly costs under each plan, including premiums and drug costs. 3. Check the networks yourself. Call the plan or check its online directory to confirm your providers are in-network for 2027. 4. Look at Star Ratings as one data point. CMS rates plans on quality and service from 1 to 5 stars. It's useful context, not the whole story.

If December 7 passes

If you miss AEP, you still have some options. From January 1 – March 31, the Medicare Advantage Open Enrollment Period lets people already in a Medicare Advantage plan switch to a different Advantage plan or drop back to Original Medicare (with a Part D plan). Certain life events — moving, losing other coverage, qualifying for Extra Help — can also trigger a Special Enrollment Period.

Watch out for pressure and scams

AEP is peak season for aggressive sales calls, door knocks, and misleading TV ads. Medicare will not call you out of the blue to "verify" your number or sign you up. If someone pressures you to decide on the spot, that's a red flag. Hang up and call 1-800-MEDICARE or your local SHIP counselor.

Where San Leandro readers can get free help

By the numbers

Medicare Part B premium, 2006–2026

The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.

$0$50$100$150$200200820122016202020242026

Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.

By the numbers

How people get Medicare in Alameda County

53% are on Medicare Advantage
(MA penetration in Alameda County)
53%
47%
Medicare Advantage Medicare Supplement (Medigap) Original Medicare only
U.S. average

MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.

Key dates

Medicare enrollment periods at a glance

  • Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
  • October 15 – December 7Annual Enrollment PeriodAnyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
  • January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
  • January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
  • VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.

Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.

Compare with a licensed agent

See Medicare options serving San Leandro & speak with a licensed agent

Medicare Advantage companies in Alameda County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
Kaiser PermanenteRegional—Yes
Scan GroupRegional—Yes
UnitedHealthcareNational—Yes
Aetna (CVS Health)National—Yes
Alignment Healthcare Usa LLCRegional—Yes
Elevance Health (Anthem)National—Yes
Enrollment data: CMS Medicare Advantage enrollment by company (county level). Figures shown are illustrative sample data pending the current CMS file. Listed by enrollment size, largest first — this is not a ranking, recommendation, or endorsement of any company or plan.

Provided by licensed insurance partners; MyMedicarePlans.org may be compensated. Not a ranking or endorsement of any plan.

Explore

When can you enroll? An interactive year

JFMAMJJASOND
October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Explore

The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Good to know

Frequently asked questions

When exactly is the 2027 Medicare Annual Enrollment Period?
AEP runs October 15 through December 7, 2026. Any changes you make during that window take effect on January 1, 2027.
What happens if I don't do anything during AEP?
Your current plan generally continues into 2027, but its costs, drug list, and network may change. That's why reviewing your Annual Notice of Change and comparing options each year is a good idea, even if you plan to stay put.
Can I switch Medicare Advantage plans after December 7?
Yes, in limited cases. From January 1 through March 31, the Medicare Advantage Open Enrollment Period allows people already in an Advantage plan to switch to another Advantage plan or return to Original Medicare with a Part D plan. Special Enrollment Periods may also apply if you move or lose other coverage.
How does the Part D out-of-pocket cap work in 2027?
In 2027, the most you'll pay out of pocket for covered prescription drugs under any Part D plan is $2,400 for the year. After you hit that amount, you pay nothing for covered drugs for the rest of the calendar year.
Sources & further reading
  • CMS — Medicare enrollment periods (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Also for San Leandro

Content Integrity Standards

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This page was last updated: September 29, 2026.

Medicare plans in your area changing for 2027 — check yoursCall