CR

CoverRight

Find a Plan

Home › Knowledge › Medicare Knowledge

Can You Change Part D Plans in the Middle of the Year?

Vedanth Bhartee

Writer · Reviewed by Richard Chan

Updated Jun 12, 2026

4 min read

Key Takeaways

Navigating the costs of your medications can feel like an endless balancing act. While Medicare Part D prescription drug plans are designed to help shoulder those costs, you aren't stuck with your initial choice forever.

Life happens, and your financial situation or health needs can change unexpectedly. If you find yourself needing to switch your Part D coverage in the middle of the year, you'll generally need to qualify for a Special Enrollment Period (SEP) triggered by specific life events.

Without an SEP, you'll have to sit tight until the annual Medicare Open Enrollment period.

Understanding Part D Plan Changes Mid-Year

Switching your Medicare Part D plan mid-year isn't something you can do on a whim. The only ticket to making an off-season change is a Special Enrollment Period.

So, what actually triggers an SEP?

Generally, you can expect a qualifying window if you experience events such as:

Comparing Part D Plans for Cost and Coverage Benefits

Before you make a leap to a new Part D policy, you'll want to carefully examine the fine print.

To protect your wallet, focus on these three essential factors:

  1. Premiums and deductibles: These dictate your upfront financial commitment. You'll want to balance lower monthly premiums against potentially higher deductibles to match your actual medical needs.
  2. Plan formulary: A formulary is essentially a master list of covered drugs broken down into pricing tiers. It's smart to switch Part D plans if your current insurer drops your critical medications or suddenly bumps them into a much more expensive tier.
  3. Pharmacy networks: Every Part D plan comes with a network of approved pharmacies. Make sure your local or preferred pharmacies are actually in-network, because venturing out-of-network is a surefire way to skyrocket your out-of-pocket costs.

To give you a better sense of how these expenses stack up, here's a snapshot of three Medicare prescription drug plans (PDPs) and their potential pricing.

PDP NameMonthly PremiumAnnual DeductibleCopayments/Coinsurance
Wellcare Value ScriptVaries by region ($0 in Atlanta, GA; $38 in Brooklyn, NY)$590Tier 1 (Preferred Generic): $0 copay
Tier 2 (Generic): $5 copay
Tier 3 (Preferred Brand): 25% coinsurance
Tier 4 (Non-Preferred Drug): 34%-45% coinsurance (varies by region)
Tier 5 (Specialty Tier): 25% coinsurance
Humana Value Rx PlanVaries by region ($16.50 in Atlanta, GA; $108.90 in Brooklyn, NY)$573-$590 (varies by region)Tier 1 (Preferred Generic): $0 copay
Tier 2 (Generic): $0-$1 copay
Tier 3 (Preferred Brand): 17%-23% coinsurance
Tier 4 (Non-Preferred Drug): 35%-46% coinsurance
Tier 5 (Specialty Tier): 25%-26% coinsurance
SilverScript ChoiceVaries by region ($50.00 in Atlanta, GA; $56.90 in Brooklyn, NY)$545Tier 1 (Preferred Generic): $2 copay
Tier 2 (Generic): $7 copay
Tier 3 (Preferred Brand): 16% coinsurance
Tier 4 (Non-Preferred Drug): 40% coinsurance
Tier 5 (Specialty Tier): 25% coinsurance

Source: Collated from PDP plans offered by relevant private insurers.

Decision-Making Considerations for Changing Part D Plans

For most folks, the reliable window for updating Part D coverage is Medicare Open Enrollment, running predictably from Oct. 15 to Dec. 7 every year.

If you don't qualify for an SEP, that specific timeframe is your sole opportunity to fine-tune your policy.

It makes sense to explore new plans if your current provider is driving the price of your essential prescriptions out of reach.

When comparing alternatives, always check how they tier the specific drugs you take daily. Drugs placed in higher tiers will rapidly drain your out-of-pocket budget.

Furthermore, don't forget to look at the financial stability of the insurers themselves. Turning to independent rating agencies like AM Best can give you a clearer picture of a Part D provider's reliability.

How to Change Your Part D Plan

Ready to make a move? Here is a simple, step-by-step roadmap for updating your Medicare prescription drug coverage:

  1. Verify your eligibility for a Special Enrollment Period directly on the Medicare website.
  2. Evaluate and compare available Part D plans using the official Medicare Plan Finder Tool.
  3. Lock in your enrollment promptly so you don't face any stressful gaps in your medication coverage.
  4. Notify your current insurance provider about the change if their policy requires it.

Get Help Navigating Medicare Changes Today

Let's face it: securing the right Medicare coverage can feel like navigating a complex maze. With so many variables in costs and plan types, it's easy to feel overwhelmed.

We're here to strip away the guesswork, empowering you to optimize your coverage with confidence.

Related Articles