Medicare is the federal health insurance program for people 65 and older (and certain younger people with disabilities). The enrollment rules are surprisingly complex, and missing key deadlines can mean paying late-enrollment penalties for the rest of your life. This guide explains how to enroll from El Paso, what is automatic versus what requires action, and the most common mistakes to avoid.
The quick answer
Most people become eligible for Medicare at age 65. If you are already receiving Social Security retirement, enrollment in Medicare Part A and Part B is automatic — your card arrives by mail. If you are not yet on Social Security, you must actively enroll during your Initial Enrollment Period (the 7-month window around your 65th birthday) at ssa.gov/medicare or by calling 1-800-772-1213. Missing this window can mean lifelong late penalties.
Automatic enrollment vs active enrollment
If you are already collecting Social Security retirement or SSDI when you turn 65, the SSA automatically enrolls you in Medicare Part A (hospital insurance) and Part B (medical insurance). Your Medicare card arrives in the mail about 3 months before your 65th birthday. You do not need to apply.
If you are not yet collecting Social Security at 65 — common for people who plan to delay benefits to age 67 or 70 — Medicare is NOT automatic. You must actively enroll. This is where people get into trouble: they assume Medicare comes with turning 65, miss the window, and then face permanent late-enrollment penalties added to their premiums for life.
The four parts of Medicare
Part A (Hospital Insurance)
Covers inpatient hospital care, skilled nursing facility care, and some home health care. Free for most people who paid Medicare taxes for at least 10 years. Enroll during your Initial Enrollment Period even if you have other coverage.
Part B (Medical Insurance)
Covers doctor visits, outpatient care, preventive services, and durable medical equipment. Standard premium in 2024 was around $174.70/month. Late enrollment without other qualifying coverage adds 10% to your premium for each 12-month delay — permanently.
Part C (Medicare Advantage)
Private plans that bundle Parts A, B, and usually D, often with extra benefits like dental or vision. Offered by private insurers approved by Medicare. You can switch between Original Medicare and a Part C plan during annual open enrollment.
Part D (Prescription Drug Coverage)
Optional but recommended for most people. Late enrollment without other qualifying drug coverage adds 1% to your premium for each month delayed — permanently.
Your Initial Enrollment Period
Your Initial Enrollment Period is a 7-month window: it starts 3 months before the month you turn 65, includes your birthday month, and continues for 3 months after. Enrolling during the first 3 months means your coverage starts on the first day of your birthday month. Enrolling later means coverage starts later, and missing the entire window means waiting for the General Enrollment Period (January 1 - March 31) with coverage starting July 1 — and likely paying late penalties.
If you are still working at 65 and have qualifying employer health insurance, you may qualify for a Special Enrollment Period when that coverage ends, with no late penalty. Confirm with the SSA before relying on this.
Frequently asked questions
Can I apply for Medicare in person at the El Paso SSA office?
Yes. You can also enroll online at ssa.gov/medicare or by phone at 1-800-772-1213. Online is fastest for straightforward cases.
What if I am still working at 65?
If you have qualifying employer group health insurance through current employment (yours or your spouse's), you may delay Part B without penalty. Confirm this in advance and document it. When the employer coverage ends, you have an 8-month Special Enrollment Period.
Does Medicare cover everything?
No. Original Medicare leaves significant gaps: copays, deductibles, no dental, vision, hearing aids, or long-term custodial care. Many people buy a Medicare Supplement (Medigap) policy or join a Medicare Advantage plan to fill these gaps.
How much does Medicare cost?
Part A is free for most. Part B was around $174.70/month in 2024 (higher for high earners). Part D premiums vary by plan. Total monthly costs typically range from $174 to $400+ depending on coverage choices.