Each year, the Medicare Open Enrollment Period—from October 15 to December 7, 2025—gives you the opportunity to review and update your healthcare coverage for the coming year. However, with so many plan options and rule changes, it’s easy to make mistakes that could cost you money or limit your access to care.
At Torgersen Consulting Benefits Group, we’ve helped countless individuals navigate Medicare successfully. Here are some of the most common Medicare enrollment mistakes we see—and how to avoid them when making your 2025 coverage decisions.
1. Waiting Too Long to Review Your Options
Many people wait until the final days of Open Enrollment to make decisions about their Medicare coverage. Unfortunately, rushing often leads to missed details and limited time to compare plans.
How to avoid it:
Start reviewing your current plan as soon as you receive your Annual Notice of Change (ANOC), typically sent in September. This gives you time to:
- Review plan updates for 2025
- Compare Medicare Advantage and Part D options
- Consult with a licensed advisor before the deadline
Early preparation helps ensure you choose the right plan for your health and budget—without the stress of last-minute decisions.
2. Assuming Your Current Plan Hasn’t Changed
Even if you were happy with your Medicare plan in 2024, it may look different in 2025. Premiums, copay amounts, and covered medications can all change. Provider networks may also shift, which could affect your access to doctors or hospitals.
How to avoid it:
Carefully read your plan’s Annual Notice of Change and confirm:
- Your preferred doctors and hospitals remain in-network
- Your prescriptions are still covered and affordable
- Your total out-of-pocket costs won’t increase unexpectedly
Taking a few minutes to double-check can prevent surprise expenses later.
3. Overlooking Prescription Drug Coverage
Prescription coverage is one of the most frequently overlooked areas during enrollment. Each year, Medicare Part D plans adjust their drug formularies (lists of covered medications), tiers, and preferred pharmacy networks.
How to avoid it:
- Review your medication list and compare it against your plan’s 2025 formulary.
- Check which pharmacies are in-network and whether mail-order options are available.
- Consider plans that include built-in drug coverage if you’re exploring Medicare Advantage.
With the 2025 Part D out-of-pocket spending cap ($2,000 maximum under the Inflation Reduction Act), now is a great time to review and optimize your drug coverage.
4. Ignoring Provider Networks in Medicare Advantage Plans
If you’re enrolled in a Medicare Advantage plan, network changes can directly affect your care. Some plans may remove or add providers, which can impact your access to your preferred doctors or hospitals.
How to avoid it:
- Always confirm your providers remain in your plan’s 2025 network.
- If your doctor or specialist is no longer included, consider switching to a plan that covers them.
- If you want more flexibility, explore Medigap (Medicare Supplement) options that allow you to see any Medicare-accepting provider.
5. Choosing a Plan Based Only on Premiums
A lower monthly premium doesn’t always mean lower overall costs. Plans with lower premiums may include higher deductibles, copays, or fewer benefits.
How to avoid it:
When comparing plans, look at the total cost of coverage, not just the premium. Consider:
- Doctor visit copays and specialist costs
- Prescription drug expenses
- Annual out-of-pocket maximums
- Added benefits like dental, vision, and hearing coverage
Sometimes, a plan with a slightly higher premium can save you more in total healthcare costs throughout the year.
6. Not Seeking Professional Medicare Guidance
Medicare can feel complicated, especially with multiple plan options and yearly changes. Making decisions without expert help can lead to missed opportunities for savings or better coverage.
How to avoid it:
Work with a licensed Medicare insurance professional who can:
- Explain your coverage options clearly
- Compare plans from multiple carriers
- Help you find the right balance between cost and benefits
A professional review ensures your Medicare decisions are well-informed and personalized to your specific health and financial situation.
The Bottom Line
Avoiding these common Medicare enrollment mistakes in 2025 can help you save money, maintain access to your preferred providers, and ensure your coverage aligns with your needs.
Taking time to review your current plan, compare new options, and get expert guidance can make Open Enrollment a smooth, stress-free experience.
Torgersen Consulting Benefits Group is here to help you navigate Medicare Open Enrollment 2025 with confidence. Our licensed agents can walk you through your Medicare Advantage, Medigap, and Part D options and help you make a choice that fits your needs and budget.
Contact us today to schedule your personalized Medicare review and make the most of your 2025 coverage.


