Updated for 2025 Open Enrollment

Turning 65 in Arizona? Here's Everything You Need to Know About Medicare

Medicare decisions made at 65 affect your healthcare — and your wallet — for decades. Arizona is one of the best states in the country for Medicare options, but more choices means more complexity. A licensed Arizona Medicare broker helps you get it right the first time, at no cost to you.

Medicare Advantage, Medigap & Part D explained for Arizona
Enrollment timing — avoid costly late penalties
Arizona carrier comparison — BCBS AZ, Humana, UnitedHealthcare & more
Snowbird coverage — protecting yourself in two states
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Medicare Enrollment Timing Matters. Most people have a 7-month Initial Enrollment Period surrounding their 65th birthday. Missing it can result in permanent late enrollment penalties on Part B and Part D. Talk to a broker before your window closes.

What Happens — and When — When You Turn 65 in Arizona

Medicare enrollment isn't automatic for most people, and the timing rules are strict. Here's exactly what to expect in the months surrounding your 65th birthday.

3 Months Before
Act Now

Your Initial Enrollment Period Opens

Your 7-month Initial Enrollment Period (IEP) begins three months before the month you turn 65. This is the ideal time to enroll — plans selected in this window take effect on your birthday month, meaning no gap in coverage. Talk to a broker now to compare your Arizona plan options before you need to make a decision.

Birthday Month
Important

Medicare Part A & Part B Eligibility Begins

You're now eligible for Medicare. If you're receiving Social Security benefits, you'll be enrolled in Part A and Part B automatically and your Medicare card will arrive in the mail. If you're not yet receiving Social Security — common if you're still working — you need to actively enroll through SSA.gov or your local Social Security office.

+3 Months After
Deadline Window

Initial Enrollment Period Closes

Your 7-month window ends three months after your birthday month. Enrolling in Part B during this period — rather than at or before your birthday month — may delay your coverage start date by up to three months. If you miss this window entirely without qualifying for a Special Enrollment Period, you'll face a late enrollment penalty of 10% per year you were eligible but didn't enroll.

Still Working?
Special Situation

Employer Coverage Changes Your Timeline

If you or your spouse is still working and covered by an employer health plan, you may be able to delay Medicare enrollment without penalty. When that employer coverage ends, you qualify for an 8-month Special Enrollment Period. This is a nuanced situation that varies by employer size — a Medicare broker can walk you through exactly how your specific situation affects your enrollment strategy.

Oct 15 – Dec 7
Annual

Medicare Annual Enrollment Period — Every Year

Even after you're enrolled, every October 15 through December 7 is your opportunity to switch Medicare Advantage plans, change Part D drug coverage, or move between Medicare Advantage and Original Medicare. Arizona carriers update their plan benefits annually, so an annual review with your broker can identify savings or coverage improvements year after year.

Medicare Advantage vs. Medicare Supplement — Which Is Right for You in Arizona?

Once you have Medicare Parts A and B, you face the most consequential Medicare decision you'll make: do you enhance your coverage with a Medicare Advantage plan (Part C) or a Medicare Supplement (Medigap) policy?

Both approaches are legitimate and work well for different people. The right answer depends on your health status, how often you travel or split time between states, your preferred doctors and hospitals, and your budget. There is no universal best choice — which is exactly why an Arizona Medicare broker who knows both the local carrier landscape and your individual situation is so valuable.

Arizona is an unusually good state for Medicare Advantage specifically. The Phoenix and Tucson metro areas have deep carrier competition, which drives plan benefits up and premiums down. Many Arizona Medicare Advantage plans offer $0 monthly premiums with benefits that include dental, vision, hearing, and prescription drug coverage — advantages that make them particularly attractive for beneficiaries in good health who want to minimize monthly costs.

Medicare Supplement plans, on the other hand, offer predictability and freedom — no networks, no referrals, and the ability to see any Medicare-accepting provider nationwide. For those with complex health needs or who travel frequently, this flexibility often outweighs the higher monthly premium.

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Maximum Flexibility

Medicare Supplement (Medigap)

A policy that works alongside Original Medicare to cover costs Medicare doesn't pay — like deductibles, copayments, and coinsurance. Standardized plans (Plan G and Plan N are most popular) are sold by private insurers at varying premiums.

See any Medicare-accepting provider in the U.S. — no networks
Predictable, low out-of-pocket costs once deductible is met
Ideal for frequent travelers and snowbirds
Plans are standardized — Plan G from BCBS AZ covers same things as Plan G from Humana
No referrals required for specialists
Consider carefully: Monthly premiums are higher than most Advantage plans, and Medigap does not include drug coverage — you'll need a separate Part D plan. Premium rates also increase with age in most pricing models.

Major Medicare Insurance Carriers in Arizona

Arizona's Medicare market includes some of the most competitive carrier offerings in the Southwest. Here's an overview of the major players your broker will compare for you.

Blue Cross Blue Shield of Arizona
BCBS AZ — Local Carrier
Medicare AdvantageMedigapPart D

Arizona's dominant local carrier with deep provider relationships across Phoenix, Tucson, and rural areas. Strong network coverage and well-regarded customer service. Particularly competitive for Medigap plans and PPO Advantage options.

UnitedHealthcare
AARP-branded Medicare Plans
Medicare AdvantageMedigapPart D

The nation's largest Medicare Advantage carrier with a strong Arizona footprint. AARP-branded Medigap plans are competitively priced. HMO and PPO Advantage options available across Maricopa and Pima counties with robust $0-premium plans.

Humana
Medicare Advantage Specialist
Medicare AdvantagePart D

Highly competitive Medicare Advantage plans in Arizona, frequently featuring $0 premiums, rich dental and vision benefits, and well-rated customer service. One of the top Advantage carriers in the Phoenix and Tucson markets.

Aetna / CVS Health
Growing Arizona Presence
Medicare AdvantagePart D

Competitive Medicare Advantage offerings with CVS Health integration — particularly useful for beneficiaries who rely on CVS pharmacy network. Strong prescription drug plan options through the combined CVS network.

Devoted Health
Newer Entrant, High Ratings
Medicare Advantage

A newer Medicare Advantage carrier with consistently high member satisfaction scores and a strong focus on care coordination. Particularly notable in the Phoenix metro market where provider relationships are well-established.

Cigna Healthcare
Employer-to-Medicare Transition
Medicare AdvantageMedigap

A good option for those transitioning from Cigna employer coverage and familiar with the network. Competitive Medigap pricing and Medicare Advantage options in major Arizona markets. Worth comparing for existing Cigna members.

Medicare Part D in Arizona — What You Need to Know

Medicare Part D is prescription drug coverage — and for most Medicare beneficiaries in Arizona, having it isn't optional. Even if you don't take many medications today, enrolling in a Part D plan when you first become eligible protects you from the late enrollment penalty and ensures you have coverage when you eventually need it.

If you choose Medicare Advantage, most plans include Part D coverage built in. If you choose Original Medicare with a Medigap supplement, you'll need to purchase a standalone Part D plan separately.

Part D plans vary significantly in which drugs they cover (their formulary), what pharmacies are in-network, and what your cost-sharing looks like across the four coverage phases. Your Arizona Medicare broker will review your current prescriptions against available plan formularies to find the plan that minimizes your total annual drug cost — not just the monthly premium.

Starting in 2025, the Inflation Reduction Act caps out-of-pocket prescription costs for Medicare Part D beneficiaries at $2,000 per year — a significant change that makes Part D more predictable and valuable for Arizonans with high drug costs.

⚠️ The Part D Late Enrollment Penalty

If you go 63 or more consecutive days without creditable prescription drug coverage after your Initial Enrollment Period, you'll pay a permanent penalty added to your Part D premium — 1% of the national base beneficiary premium for every month you were without coverage. This penalty never goes away. Don't delay enrollment.

The Four Coverage Phases

Part D plans move through a deductible phase, initial coverage phase, and catastrophic coverage phase. In 2025, the coverage gap ("donut hole") has been effectively eliminated for most beneficiaries.

Formularies Change Annually

The list of covered drugs and their tier placement changes every year. Annual review with your broker ensures your medications are still covered at the lowest cost-sharing tier available to you.

Pharmacy Networks Matter

Part D plans negotiate different rates with different pharmacies. Using a preferred pharmacy in your plan's network can significantly reduce what you pay at the counter.

Low Income Subsidy (Extra Help)

Arizona residents with limited income and resources may qualify for the Extra Help program, which pays most Part D costs including premiums, deductibles, and copays. A broker can determine your eligibility.

$2,000 Out-of-Pocket Cap (2025)

Starting in 2025, your annual out-of-pocket drug costs under Part D are capped at $2,000 — a major improvement for beneficiaries with expensive medications.

Medicare Coverage When You Split Time Between Arizona and Another State

Arizona is home to hundreds of thousands of part-year residents who winter here and spend summers elsewhere. Your Medicare coverage strategy needs to work in both places.

This is one of the most important and most overlooked Medicare decisions for part-year Arizona residents. The plan that works beautifully in Phoenix may leave you with limited or no coverage in Minnesota, Michigan, or wherever you spend your summers — and vice versa.

The right answer depends almost entirely on which plan type you choose. Medicare Advantage plans use provider networks, and those networks are generally geographically limited. Most HMO Advantage plans only cover out-of-network care in emergencies. PPO Advantage plans offer more flexibility but still at higher cost-sharing outside the network.

Original Medicare with a Medigap supplement, by contrast, covers you at any Medicare-accepting provider anywhere in the United States — making it the natural fit for snowbirds who need seamless coverage in two or more states without worrying about networks.

That said, some Medicare Advantage PPO plans have national PPO networks that provide meaningful coverage outside Arizona. A broker who works with snowbirds regularly knows which Arizona plans offer the strongest out-of-state coverage and can match your specific situation.

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Original Medicare + Medigap — Best for Most Snowbirds

Covers you at any Medicare-accepting provider nationwide with no network restrictions. Plan G is the most comprehensive Medigap option and the most popular among Arizonans who travel extensively or split time between states.

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Medicare Advantage PPO — Works for Some

Select PPO plans have national networks that provide coverage outside Arizona at in-network rates. Requires careful plan selection — not all PPO networks are equally strong in all states. A broker can identify which plans have meaningful coverage in your second state.

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Medicare Advantage HMO — Generally Not Recommended

HMO plans are network-restricted to Arizona service areas. You'd have emergency coverage out of state, but routine and specialist care would be uncovered. Not a suitable choice if you spend significant time outside Arizona each year.

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Part D While Traveling

Most Part D plans include some out-of-network pharmacy coverage, but preferred rates apply at in-network pharmacies. Consider mail-order prescription services to ensure continuity regardless of where you are.

Medicare in Arizona — Frequently Asked Questions

The questions Arizona residents turning 65 ask most often — answered clearly and without the insurance jargon.

It depends on whether you're receiving Social Security benefits. If you're already receiving Social Security retirement or disability benefits, you'll be automatically enrolled in Medicare Parts A and B and your card will arrive in the mail roughly three months before your 65th birthday. If you're not yet receiving Social Security — for example, if you're still working and haven't claimed benefits — you need to actively enroll. You can do this through SSA.gov, by calling Social Security at 1-800-772-1213, or at your local Social Security office.
With Original Medicare or a Medigap supplement, you can see any doctor or specialist in the country who accepts Medicare — and the vast majority do. With Medicare Advantage, it depends on the plan's network. Before enrolling in any Advantage plan, your broker will verify that your preferred physicians and hospitals participate in that specific plan's network. This is one of the most important steps in plan selection and one that people often skip when enrolling without a broker.
Medicare Part A (hospital insurance) is premium-free for most people who worked and paid Medicare taxes for at least 10 years. Part B (medical insurance) has a standard monthly premium of $185.00 in 2025, though higher-income beneficiaries pay more through IRMAA surcharges. Beyond Parts A and B, your costs depend on whether you choose Medicare Advantage (many Arizona plans are $0 premium) or a Medigap supplement (typically $100–$300/month depending on plan and age) plus a separate Part D plan. A broker will model your total annual cost across plan options so you can make an informed comparison.
IRMAA stands for Income-Related Monthly Adjustment Amount. It's an additional premium surcharge applied to Medicare Part B and Part D for beneficiaries whose income exceeds certain thresholds. In 2025, IRMAA surcharges kick in for individuals with income above $106,000 (or couples above $212,000) based on your tax return from two years prior. IRMAA affects Arizona residents exactly as it affects anyone else — it's a federal program. If you recently retired and your income has dropped significantly, you can request an IRMAA reduction using SSA Form SSA-44. A broker can help you understand how this affects your overall Medicare costs.
Yes, with some important timing rules. During the Annual Enrollment Period (October 15 – December 7 each year), you can switch between Medicare Advantage plans, change your Part D coverage, or move between Medicare Advantage and Original Medicare. Changes take effect January 1. Additionally, between January 1 and March 31 (Medicare Advantage Open Enrollment), you can switch from one Advantage plan to another or return to Original Medicare. Switching from Medicare Advantage to a Medigap plan outside of your initial enrollment period may require medical underwriting in Arizona — another reason to get the plan selection right from the beginning.
Arizona does not currently have a broad State Pharmaceutical Assistance Program (SPAP) for Medicare beneficiaries. However, Arizona residents with limited income and resources may qualify for the federal Extra Help program (also called Low Income Subsidy), which provides substantial assistance with Part D premiums, deductibles, and copayments. Additionally, the Arizona Department of Economic Security (DES) administers various assistance programs that may be relevant depending on your income situation. A Medicare broker familiar with Arizona's assistance landscape can help identify any programs you may qualify for.
A licensed Arizona Medicare broker has access to plans from multiple carriers and can compare them side by side based on your specific doctors, medications, and budget — something you can't easily do on your own across dozens of plan options. Brokers are paid by the insurance carriers, so their service costs you nothing. More importantly, the decisions you make at 65 can be difficult and sometimes costly to reverse. Getting personalized guidance from someone who knows the Arizona market and your individual needs is one of the highest-value free services available to you at this stage of life.

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