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Medicare 2026

SHIP and Licensed Agents for Medicare in Walnut Creek

Choosing a Medicare plan can feel like a maze, especially when your mailbox fills up with brochures every fall. If you live in Walnut Creek, you don't have to sort through it alone — and you don't have to pay someone to help you understand your options. Free, unbiased counseling is available through California's State Health Insurance Assistance Program (SHIP), and licensed agents can walk you through specific plans at no cost to you.

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Medicare options in your area

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2027 PLAN ALERT

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

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Annual Enrollment: Oct 15 – Dec 7

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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
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Reading a guide at home in Walnut Creek — illustrating this Medicare guide
Photo: Shane Rounce Photo by Shane Rounce on Unsplash

Key takeaways

  • California's SHIP program, called HICAP, offers free one-on-one Medicare counseling and does not sell insurance.
  • Licensed insurance agents can also help you compare plans at no charge, but they only represent the carriers they contract with.
  • Walnut Creek sits in Contra Costa County, where 11 Medicare Advantage plans and 6 MA-PD carriers were available for 2026; the 2027 lineup is in each plan's Annual Notice of Change and on Medicare.gov's Plan Finder.
  • For personalized answers, always start with medicare.gov, 1-800-MEDICARE, or your local HICAP office.

Start with HICAP — California's SHIP

Every state has a State Health Insurance Assistance Program (SHIP) funded by the federal government to give free, one-on-one Medicare help. In California, it's called HICAP — the Health Insurance Counseling and Advocacy Program.

HICAP counselors are trained volunteers and staff who do not sell insurance and do not earn commissions. That means they have no reason to steer you toward one plan over another. They can help you:

Contra Costa County residents, including those in Walnut Creek, are served by the local HICAP office. You can reach California HICAP statewide at 1-800-434-0222, and they'll route you to the counselor nearest you. Appointments are usually free and can be done by phone or in person.

When a licensed agent makes sense

Licensed insurance agents and brokers are another option. They're paid by the insurance companies whose plans they sell, not by you, so their help is also free at the point of service. A good agent can:

The trade-off: an agent can only quote plans from the carriers they contract with. If they only work with two insurers, you're only seeing two insurers' options. That's why many people start with HICAP to get the full landscape, then talk to an agent once they've narrowed things down.

Before you meet with any agent, ask which carriers they represent, whether they're independent or captive, and confirm they're licensed in California. You can verify a license through the California Department of Insurance.

What's available in Contra Costa County

Walnut Creek is in Contra Costa County, where CMS landscape data showed 11 Medicare Advantage plans offered for 2026, from 6 different carriers offering Medicare Advantage with prescription drug coverage (MA-PD). There were no stand-alone Part D plans listed at the county level in the 2026 landscape data, which is worth asking a HICAP counselor about if you're on Original Medicare and need drug coverage. The 2027 lineup is published in each plan's Annual Notice of Change and on Medicare.gov's Plan Finder.

The county is home to nearly 200,000 residents age 65 or older, so demand for good, honest guidance is high — book counseling appointments early, especially between October and December.

Key numbers to know for 2027

Whether you meet with a HICAP counselor or an agent, these program-wide facts will shape the conversation:

Mark these enrollment windows

Outside these windows, you generally need a Special Enrollment Period — another good reason to talk with HICAP if your situation changes.

Watch for red flags

Unbiased help should never feel like a sales pitch. Under CMS rules, agents cannot show up at your door uninvited, cold-call you, or offer gifts to enroll. Be cautious if someone:

If something feels off, hang up and call HICAP or 1-800-MEDICARE.

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 Contra Costa County

52% are on Medicare Advantage
(MA penetration in Contra Costa County)
52%
48%
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.

Compare with a licensed agent

See Medicare options serving Walnut Creek & speak with a licensed agent

Medicare Advantage companies in Contra Costa County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
Kaiser PermanenteRegional—Yes
UnitedHealthcareNational—Yes
HumanaNational—Yes
Imperial Health Plan of CaliforniaRegional—Yes
California Physicians' ServiceRegional—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

Is HICAP really free?
Yes. HICAP is California's federally funded SHIP program. Counselors do not sell insurance and do not accept commissions. There's no charge for appointments, whether by phone or in person.
What's the difference between HICAP and a licensed agent?
HICAP counselors give neutral education and can walk through every plan in Medicare's Plan Finder. Licensed agents can enroll you, but only in plans from the carriers they're contracted with. Many people use both — HICAP to learn, an agent to enroll.
How do I find my local HICAP office in Walnut Creek?
Call the statewide HICAP line at 1-800-434-0222 and give your ZIP code. They'll connect you with the Contra Costa County office. You can also visit aging.ca.gov and search for HICAP.
When should I ask for help?
Any time — but especially before the October 15 to December 7 Annual Enrollment Period, when you may want to review your current coverage. Appointments fill up quickly in the fall, so try to book by early October. ## Where to go next For official answers, start with **medicare.gov** or call **1-800-MEDICARE (1-800-633-4227)**, available 24/7. For free local counseling in Walnut Creek and the rest of Contra Costa County, contact **California HICAP at 1-800-434-0222**. Taking an hour with a trained counselor before you enroll can save you a year of second-guessing.
Sources & further reading
  • CMS — MA/Part D Landscape & Plan Finder data

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

Also for Walnut Creek

Content Integrity Standards

  • No invented figures. Program-level numbers come from CMS / Medicare.gov; we never use placeholder data.
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  • Inline sourcing. Facts and figures are cited to primary sources — CMS, SSA, and Medicare.gov.
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This page was last updated: September 29, 2026.

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