Turning 65 in Arizona? Your Medicare Enrollment Checklist
An easy-to-follow checklist for Tucson and Arizona residents planning for Medicare, from your first enrollment deadline to choosing coverage.
Your Medicare-at-65 checklist
- ☐ Six months before 65: Review employer, spouse, retiree or Marketplace coverage and any planned retirement date.
- ☐ Four months before 65: Learn the differences among Parts A, B, Medicare Advantage, Medigap and Part D.
- ☐ Three months before 65: Check whether you will be automatically enrolled; if not, start your application through Social Security when your Initial Enrollment Period opens.
- ☐ Before coverage starts: Verify doctors, hospitals, prescription drugs, premiums and plan networks.
- ☐ After enrollment: Confirm your effective dates, cards, coverage coordination and annual plan review.
Step 1: Know what Original Medicare covers
Part A generally covers inpatient hospital services, qualifying skilled nursing facility care, hospice and certain home healthcare. Many people qualify for premium-free Part A. Part B covers outpatient medical care, physician services, preventive services and durable medical equipment; it usually carries a monthly premium. Original Medicare also has deductibles and cost sharing and generally does not pay for most retail prescription drugs.
Step 2: Mark your Initial Enrollment Period
For most people turning 65, the Initial Enrollment Period is seven months: three months before their birthday month, the birthday month, and three months afterward. For example, if your 65th birthday is June 15, 2027, the usual window is March 1 through September 30, 2027. People born on the first day of a month generally have a shifted schedule.
Applying before your birthday month usually allows Part B to begin on the first day of that month; enrollment later in your IEP generally starts the following month. For details, see our Part A and B enrollment walkthrough.
Step 3: Find out whether you must apply
People already receiving Social Security retirement benefits often receive Medicare automatically. If you are not automatically enrolled, apply through Social Security online, by calling 1-800-772-1213, or through an SSA office. You do not have to claim Social Security retirement benefits to apply for Medicare.
Step 4: Check employer coverage before delaying Part B
If you or your spouse has group health insurance through current employment, you may qualify to delay Part B without a late penalty. The employer's size and coordination-of-benefits rules matter; coverage through smaller employers may require Medicare to pay first. COBRA, retiree insurance and ACA Marketplace coverage generally do not confer the same employment-based Part B Special Enrollment Period. Confirm details with the plan administrator and SSA rather than assuming you can postpone enrollment.
A note for HSA contributors
Once you have Medicare, you cannot make new tax-advantaged contributions to a Health Savings Account. Premium-free Part A may begin retroactively—up to six months, but not before eligibility—when you enroll after age 65. Consider speaking with a tax professional before making final contributions.
Step 5: Choose how you want Medicare coverage
Original Medicare plus optional Medigap and Part D: Original Medicare lets you see providers nationwide who accept Medicare. Medigap can help with certain out-of-pocket costs, and Part D can provide prescription drug coverage. Medigap's federal six-month open enrollment period generally begins when you are both 65 or older and enrolled in Part B.
Medicare Advantage: Private plans provide Medicare Part A and B benefits and often prescription coverage. Networks, costs, and additional benefits vary by plan and location. A Tucson-area plan may differ from one offered in Phoenix or elsewhere in Arizona. Compare your physicians, medications, pharmacies and travel needs carefully. See our side-by-side coverage comparison.
Step 6: Review prescriptions and doctors
Make a list of every prescription, preferred pharmacy, primary care physician, specialist and hospital. Confirm the precise plan's formulary, network and cost-sharing rules before enrolling. You can use the official Medicare Plan Compare tool to review locally available options.
Step 7: See whether you qualify for savings
Eligible Arizonans may qualify for a Medicare Savings Program through AHCCCS and/or federal Extra Help with Part D costs. These programs have income and other eligibility requirements. Free, unbiased counseling is also available through Arizona's State Health Insurance Assistance Program (SHIP).
Step 8: Confirm everything before coverage begins
- ☐ Part A effective date recorded
- ☐ Part B effective date recorded, if enrolling
- ☐ Employer or Marketplace coverage transition arranged
- ☐ Additional plan and drug coverage enrollment confirmed, if applicable
- ☐ Doctors, prescriptions, premiums and out-of-pocket expenses reviewed
- ☐ Medicare number and insurance cards stored securely
What if you missed your deadline?
You may be eligible for a Special Enrollment Period. If not, the General Enrollment Period runs January 1–March 31 and can allow enrollment in Part B or premium-Part A, generally effective the first day of the next month. Late penalties may apply. Read our IEP vs. GEP enrollment guide for the steps.
Frequently asked questions
Is Medicare enrollment different in Arizona?
Original Medicare enrollment is federal and handled by Social Security. Private Medicare Advantage and Medigap plan options and premiums can vary locally.
Is Medicare free at 65?
Most people qualify for premium-free Part A, but Part B generally has a monthly premium. Additional coverage and out-of-pocket medical expenses may also cost money.
Where do I apply in Tucson?
Use SSA.gov or call Social Security at 1-800-772-1213. Medicare insurance professionals can help compare additional insurance, but SSA handles Parts A and B enrollment.
Need help reviewing your Medicare options?
Tripp Insurance Solutions is an independent insurance agency based in Tucson, Arizona. For Medicare-specific assistance, visit our preferred Medicare resource, Tucson Medicare Center, or contact our team. You enroll in Original Medicare Parts A and B through Social Security—not through our agency.
Official sources
- SSA: Sign up for Medicare
- Medicare.gov: Enrollment dates
- Medicare.gov: Plan Compare
- Arizona Medicare assistance
Educational information only. Enrollment eligibility and plan availability depend on your circumstances. Tripp Insurance Solutions is not affiliated with or endorsed by Medicare, CMS or the Social Security Administration.