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Last Updated on April 21, 2025

Medicare Open Enrollment 2025: Dates, Changes & Key Updates

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Medicare Open Enrollment 2025 is one of the most important periods of the year for millions of seniors and eligible individuals across the United States. Whether you’re enrolling for the first time, switching plans, or updating coverage, this guide covers everything you need to know to make informed decisions in 2025.


What Is the Open Enrollment Period for Medicare?

The Medicare Open Enrollment Period (OEP), also known as the Annual Election Period (AEP), runs from October 15 to December 7, 2024. During this time, beneficiaries can:

  • Switch from Original Medicare to a Medicare Advantage Plan (Part C)
  • Switch from a Medicare Advantage Plan back to Original Medicare
  • Change from one Medicare Advantage Plan to another
  • Enroll in or switch Medicare Part D (prescription drug) plans

Any changes made during the 2025 Medicare Open Enrollment Period will take effect on January 1, 2025.


What Is the Enrollment Period for Medicare for 2025?

There are different enrollment periods for Medicare, and it’s important not to confuse them:

  • Initial Enrollment Period (IEP): This is a 7-month window around your 65th birthday.
  • General Enrollment Period (GEP): Runs from January 1 to March 31 each year.
  • Open Enrollment Period (OEP): October 15 – December 7, 2024, for 2025 coverage.
  • Medicare Advantage Open Enrollment: January 1 – March 31, 2025, allows plan changes for those already enrolled in a Medicare Advantage plan.

When Can I Change My Medicare Supplement Plan for 2025?

Unlike Medicare Advantage and Part D, Medicare Supplement (Medigap) plans do not follow the same Open Enrollment timeline. Your best opportunity to enroll or switch is during your 6-month Medigap Open Enrollment Period, which begins the month you’re 65 or older and enrolled in Medicare Part B.

However, you can apply to change your Medicare Supplement plan at any time in 2025, though you may be subject to medical underwriting depending on your state’s rules.


How Much Will Medicare Part B Premium Be in 2025?

The Medicare Part B premium for 2025 has not been officially finalized as of now. However, according to projections from the Medicare Trustees, the standard monthly premium may increase slightly due to inflation and increased healthcare utilization.

In 2024, the standard premium was $174.70. For 2025, experts estimate it could rise to approximately $179 – $183/month, but the final amount will be announced in the fall of 2024.


What Is the Maximum Out-of-Pocket for Medicare in 2025?

The maximum out-of-pocket (MOOP) limit for Medicare Advantage plans varies by plan but is capped by Medicare guidelines. In 2024, the MOOP limit was $8,850 for in-network services.

For 2025, the MOOP is expected to remain close to that figure, though specific limits depend on your plan. It’s essential to review your Medicare Advantage plan’s Summary of Benefits to confirm your exact MOOP for the new year.


Key Tips for Medicare Open Enrollment 2025

  • Review your Annual Notice of Change (ANOC): Sent in September, it outlines changes to your current plan.
  • Compare plans annually: Don’t assume your plan is still the best option—drug formularies and provider networks may change.
  • Check for extra benefits: Some Medicare Advantage plans offer vision, dental, hearing, and fitness coverage.
  • Get help if needed: Use the official Medicare website or speak with a licensed insurance agent.

Final Thoughts

Navigating Medicare Open Enrollment 2025 can feel overwhelming, but staying informed about important dates, plan options, and potential cost changes ensures you get the coverage that fits your healthcare and financial needs. Always review your choices carefully and take action during the enrollment period to avoid unwanted surprises in the new year.


Keywords Used: Medicare Open Enrollment 2025, Medicare Part B premium 2025, Medicare enrollment period 2025, Medicare Supplement plan 2025, Medicare Advantage out-of-pocket 2025.

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