Am I Eligible to Enroll in Part D or Change My Coverage?

Unless you are enrolling in Medicare for the first time, Part D enrollments are limited to specific times of year or following specific events (changes in coverage). Read below to see if you qualify for any of these enrollment periods.

Initial Enrollment Period (IEP)
The Initial Enrollment period for Medicare Part D (IEP) is a one-time event when an individual first has the opportunity to enroll in Medicare. It occurs for most people when turning age 65. For people turning 65 the Part D IEP lasts seven (7) months (it begins three (3) months prior to your birth month, includes your birth month, and extends three (3) months after your birth month). In addition, people enrolling in Medicare Part B after their entitlement to Part A ends, may enroll in Part D using a Special Election Period (SEP). If no SEP is applicable they may enroll in Part D during the next Annual Election Period (AEP), however a penalty may be enforced which would increase their premiums for Part D.

Annual Election Period (AEP)
The Annual Election Period begins October 15th, and ends December 7th. Anyone who already enrolled in a Medicare Part D plan may change plans during this period each year. Eligible individuals (people on Medicare) who chose not to enroll during their initial Enrollment Period may enroll in a Medicare Part D plan between October 15th and December 7th each year. Enrollments during this period have an effective date of January 1 of the next year.

Special Election Period (SEP)
A Special Election Period means that you are allowed to enroll in Medicare Part D outside of the Initial Election Period and/or Annual Election Period because you meet certain conditions set forth by the government. Below are some examples of specific situations which might qualify you for a SEP.

  • You are a disaster evacuee and reside in certain zip codes as identified by the Federal Emergency Management Agency at the time of the disaster.
  • You move permanently outside your plan's service area.
  • You're enrolled in another prescription drug plan or a Medicare Advantage plan whose contract is terminated.
  • You are not adequately informed about creditable prescription drug coverage.
  • You lose your previous creditable coverage through no action of your own*.
  • Your enrollment or non-enrollment is caused by an error by a federal employee or contractor hired by the federal government.
  • You were eligible for both Medicare and Medicaid (a "dual eligible") but you lost your dual eligibility status.
  • You want to move from an employer-sponsored prescription drug plan to a Medicare Prescription Drug Plan.
  • You want to leave your current Medicare Prescription Drug Plan because it was reprimanded by the federal government or the federal government has determined the plan violated a material provision of its Medicare contract in relation to services provided to you.
  • You're enrolled in a Cost Plan that isn't renewing its contract with Medicare. This SEP begins 90 calendar days prior to the end of the contract year (i.e., October 1) and ends on December 31st of the same year.
  • You want to move from a Program of All-Inclusive Care for the Elderly—PACE—to a Medicare Prescription Drug Plan.
  • You live in—or are moving in or out of—a skilled nursing facility, nursing facility, intermediate care facility for the mentally retarded, psychiatric hospital or unit, rehabilitation hospital or unit, long-term care hospital or swing-bed hospital.
  • Your Medicare entitlement determination is made retroactively.
  • You are not eligible for premium free Part A and enroll in Medicare Part B during the January-March Part B General Enrollment Period.
  • You have a low-income subsidy.
  • The federal government may authorize other special election periods.

Can I change my Part D plan after I enroll?
Once enrolled in a Medicare Part D Prescription Drug Plan individuals can generally only change their plan from October 15th to December 7th of each year, with an effective date of January 1 of the following year (unless they have a Special Election Period as described above).

Important Medicare Part D Enrollment Dates to Remember

October 15th
Annual Election Period begins. First day you may elect to enroll or change Medicare Part D Plans, effective Jan. 1 of the next calendar year.

December 7th
Last day you can enroll or change Medicare Part D Prescription Drug plans for the next calendar year, unless you qualify for a Special Election Period.

January 1
First day you can use your Part D Prescription Drug Plan (PDP) coverage.

Some categories of beneficiaries are not bound by the lock-in rules and may enroll or disenroll from a PDP outside the AEP. An individual may at any time, during a designated Special Election Period (SEP), discontinue the election of a PDP plan offered by an PDP organization and change his or her election to original Medicare or to a different PDP plan.

Medicare MarketPlace® is the easy way to get free online quotes for Medicare Part D plans in your area. You can buy online or speak to one of our Licensed Insurance Agents for help choosing the right plan.