Medicare Part D Costs May Change in 2027: 3 Moves Mississippi Beneficiaries Should Make Before Open Enrollment

The afternoon light is coming through your Tupelo, Jackson, or Gulf Coast window. Your prescription bottles are lined up on the counter. Then your mail arrives: an Annual Notice of Change from your Medicare plan.
You open it and see that your prescription coverage may cost more in 2027.
Take a breath. You’re not alone, and you don’t have to make a rushed decision. The Medicare Part D landscape is changing, but you have time to review your options and choose coverage that fits your medications, pharmacy, and budget.
Here are three smart moves Mississippi Medicare beneficiaries should make now.
Why Medicare Part D costs may change in 2027
The temporary Medicare Part D Premium Stabilization Demonstration ends on December 31, 2026. This program helped subsidize monthly premiums for participating standalone prescription drug plans and temporarily limited certain premium increases.
CMS has confirmed that the Part D Premium Stabilization Demonstration will end after 2026 and that CY 2027 bids will operate under traditional market conditions. This does not mean every plan's premium will increase. Actual premiums and total costs will vary by plan, prescriptions, service area, and individual circumstances.
It is also important to understand what is not changing because the demonstration ends:
- The demonstration’s expiration does not eliminate the statutory 6% cap on annual growth in the Part D base beneficiary premium.
- The 6% limitation applies to the statutory base beneficiary premium calculation. It does not mean that every plan's actual premium will increase by no more than 6%.
- It does not remove the annual out-of-pocket limit for covered Part D drugs.
- The current out-of-pocket cap is $2,100 for 2026. For 2027, the official Medicare & You handbook lists a $2,400 cap for covered Part D drugs. After you reach that limit, you pay $0 for covered Part D drugs for the rest of the year.
The annual out-of-pocket limit is a separate Part D benefit parameter. It is different from the monthly premium and does not mean that all prescription costs or premiums are eliminated. The amount applies to covered Part D drugs and is subject to the applicable plan and Medicare rules.
The $2,400 limit is separate from your monthly plan premium. You could pay a higher premium but spend less at the pharmacy, or choose a lower-premium plan that costs more when you fill prescriptions. That is why comparing the entire plan matters.

Move 1: Read your Annual Notice of Change carefully
Your plan should send an Annual Notice of Change, often called an ANOC, by September 30. This document explains changes that begin January 1, 2027.
Do not focus only on the new monthly premium. Review the full picture, including:
- Your new monthly premium
- The plan’s deductible
- Copayments and coinsurance
- Changes to your drug formulary
- Drug tiers
- Prior authorization or step-therapy requirements
- Preferred and standard pharmacy networks
- Mail-order pharmacy options
- Changes to the plan’s service area
- Changes to the Medicare Prescription Payment Plan
Create a simple list of your current medications before you compare plans. Include:
- The exact name of each prescription
- The dosage
- How often you take it
- Whether it is brand-name or generic
- The pharmacy you prefer
Do not assume your current plan will continue covering every medication in the same way. Formularies and drug tiers can change from year to year. Instead, compare the 2027 details with what you are taking today.
If something looks confusing, don’t panic. Call your plan, contact Medicare, or ask a licensed local advisor to walk through the notice with you.
Move 2: Compare Part D plans during Open Enrollment
Medicare Open Enrollment for 2027 coverage runs from October 15 through December 7, 2026. Any change you make during this period generally becomes effective January 1, 2027.
You can use Medicare’s official Plan Compare tool to review plans available in your Mississippi ZIP code. Medicare’s tool allows you to enter your medications and preferred pharmacies so you can estimate total costs.
When comparing plans, check these five items:
1. Are all your prescriptions covered?
A plan may have a lower premium but fail to cover one of your important medications. Look for every prescription, not just your most expensive one.
2. What tier is each drug in?
Plans generally place medications in tiers. Lower tiers often have lower cost-sharing, while higher tiers may involve greater copayments or coinsurance.
3. Does the plan require approval?
Some plans use:
- Prior authorization, meaning your doctor must confirm that a drug is medically necessary
- Step therapy, meaning you may need to try another medication first
- Quantity limits, meaning the plan limits how much you can receive at one time
These rules do not automatically mean a medication is unavailable. However, you should know about them before January.
4. Is your pharmacy in the preferred network?
Your preferred pharmacy may be in-network but not preferred, or it may leave the network altogether. A plan’s pharmacy network can affect what you pay each month.
Check whether your local pharmacy, mail-order option, and any pharmacy you use while traveling are included.
5. What is your estimated yearly cost?
Add up more than the premium. Consider:
- Premiums
- Deductible
- Prescription copayments
- Coinsurance
- Pharmacy costs
- The annual out-of-pocket limit
Do not choose a plan based only on the lowest monthly premium. The lowest premium may not produce the lowest yearly cost for your specific medications.
If you are enrolled in Medicare Advantage, remember that your drug coverage is usually included in the plan. You may not be able to add a separate standalone Part D plan. Review the Medicare Advantage plan’s drug coverage, provider network, and total costs together.
Move 3: Get a local, personalized review before December 7
Medicare decisions can feel like a stack of paperwork written in a language no one speaks at the kitchen table. A local Medicare insurance consultant can help you organize the details and compare plans based on your situation.
Before scheduling a review, gather:
- Your Medicare card
- Your ANOC
- Your current plan card
- A complete medication list
- Your preferred pharmacy
- Information about other coverage, such as employer, retiree, VA, TRICARE, or Medicaid benefits
A qualified advisor can help you compare available options and identify questions to ask. You may also want to check whether you qualify for Extra Help, which can reduce certain Medicare prescription drug costs for people with limited income and resources. Learn more through Medicare’s Extra Help information.
G-Force Insurance Agency, INC. offers no-cost consultations, if applicable, for Mississippi Medicare beneficiaries reviewing their coverage options. Our licensed agents can review the plans we represent that may be available in your area and help you look at prescriptions, tiers, pharmacies, and projected costs.
Scheduling a consultation does not require you to enroll in a plan, change coverage, or purchase any product.
Do not post your Medicare number, prescription details, health information, or other personal information in public comments or online forms that are not approved for secure use.
Call (662) 432-4126 or contact G-Force Insurance Agency to schedule a conversation.

What about Mississippi Medicare Supplement plans?
A Medicare Supplement Insurance plan, also called Medigap, helps pay certain out-of-pocket costs left by Original Medicare. It is different from Medicare Part D.
If you have Original Medicare and a Medicare Supplement plan, you may still need separate prescription drug coverage. A Medigap policy generally does not replace Part D.
If you are also reviewing Mississippi Medicare supplement plans, look at the decisions separately:
- Compare Medigap benefits and premiums.
- Review your Part D prescription coverage.
- Confirm whether your doctors and pharmacies work with the coverage you are considering.
- Understand enrollment rules before changing an existing policy.
A Medicare insurance consultant in MS can help you understand how these pieces fit together, but no one should pressure you to make a change without reviewing the details.
Important Medicare resources
For neutral, official information, visit:
- Medicare.gov
- Medicare Plan Compare
- Medicare Part D costs
- Call 1-800-MEDICARE (1-800-633-4227)
- Mississippi SHIP: 1-844-822-4622
You can also review the official Medicare & You 2027 handbook.
Don’t wait until December
The end of the Premium Stabilization Demonstration may change the price of your standalone Part D plan, but a premium increase does not automatically mean you should leave your plan. The right answer depends on your prescriptions, drug tiers, pharmacy network, total yearly costs, and other coverage.
Start by reading your ANOC. Compare plans when 2027 information becomes available in September. Then schedule a review before Open Enrollment ends on December 7.
A short conversation now can help you avoid an unwelcome surprise at the pharmacy in January. You have options, and you do not have to sort through them alone.
Medicare disclosure
We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP), to get information on all of your options.
G-Force Insurance Agency, INC. disclosure
G-Force Insurance Agency, INC. is an independent insurance agency. We do not offer every plan available in your area. Plan availability, benefits, premiums, formularies, pharmacy networks, provider participation, and eligibility vary by plan, county, and individual circumstances. G-Force Insurance Agency, INC. is not affiliated with or endorsed by Medicare or the U.S. government.