Medicare Advantage Open Enrollment Period

E549824

Medicare enrollment period health insurance enrollment window

The Medicare Advantage Open Enrollment Period is a yearly window during which people already enrolled in a Medicare Advantage plan can switch to a different Medicare Advantage plan or return to Original Medicare.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (4)

Label	Occurrences
Medicare Advantage Open Enrollment Period canonical	4
Medicare Advantage OEP	1
Medicare Open Enrollment Period	1
Medicare Open Enrollment Period for Medicare Advantage and Part D	1

How this entity was disambiguated

This entity first appeared as the object of triple T5868061 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Medicare Advantage Open Enrollment Period
Context triple: [General Enrollment Period, notFor, Medicare Advantage Open Enrollment Period]

A. General Enrollment Period
The General Enrollment Period is a specific annual window during which eligible individuals can sign up for Medicare Part B if they missed their initial enrollment opportunity.
B. Special Enrollment Period
The Special Enrollment Period is a limited time window outside of initial or general enrollment when eligible individuals can sign up for Medicare Part B without facing a late enrollment penalty, typically triggered by specific life or coverage changes.
C. Medicare Part C
Medicare Part C, also known as Medicare Advantage, is a program through which private insurance plans provide Medicare-covered benefits and often additional services to eligible beneficiaries.
D. Annual Enrollment Period
The Annual Enrollment Period is the yearly window when people with Medicare can review and change their Medicare Advantage and prescription drug coverage for the upcoming year.
E. Medicare Part B
Medicare Part B is the component of the U.S. federal health insurance program that helps cover medically necessary outpatient services, such as doctor visits, preventive care, and certain medical supplies for eligible beneficiaries.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Medicare Advantage Open Enrollment Period
Target entity description: The Medicare Advantage Open Enrollment Period is a yearly window during which people already enrolled in a Medicare Advantage plan can switch to a different Medicare Advantage plan or return to Original Medicare.

A. General Enrollment Period
The General Enrollment Period is a specific annual window during which eligible individuals can sign up for Medicare Part B if they missed their initial enrollment opportunity.
B. Special Enrollment Period
The Special Enrollment Period is a limited time window outside of initial or general enrollment when eligible individuals can sign up for Medicare Part B without facing a late enrollment penalty, typically triggered by specific life or coverage changes.
C. Medicare Part C
Medicare Part C, also known as Medicare Advantage, is a program through which private insurance plans provide Medicare-covered benefits and often additional services to eligible beneficiaries.
D. Annual Enrollment Period
The Annual Enrollment Period is the yearly window when people with Medicare can review and change their Medicare Advantage and prescription drug coverage for the upcoming year.
E. Medicare Part B
Medicare Part B is the component of the U.S. federal health insurance program that helps cover medically necessary outpatient services, such as doctor visits, preventive care, and certain medical supplies for eligible beneficiaries.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	Medicare enrollment period ⓘ health insurance enrollment window ⓘ
administeredBy	Centers for Medicare & Medicaid Services ⓘ
allowsAction	disenroll from a Medicare Advantage plan and return to Original Medicare ⓘ join a standalone Medicare Part D prescription drug plan after returning to Original Medicare ⓘ switch from one Medicare Advantage plan to another Medicare Advantage plan ⓘ
alsoKnownAs	MA OEP ⓘ Medicare Advantage OEP ⓘ linked to: Medicare Advantage Open Enrollment Period
appliesTo	Medicare Advantage enrollees ⓘ people already enrolled in a Medicare Advantage plan ⓘ
appliesToAgeGroup	certain younger individuals with qualifying disabilities on Medicare ⓘ primarily people age 65 and older ⓘ
beneficiaryActionMethod	contacting the new Medicare Advantage plan ⓘ using official Medicare enrollment channels ⓘ
beneficiaryRight	right to change Medicare Advantage coverage once during the period ⓘ
communicationChannel	Medicare & You handbook ⓘ Medicare.gov website ⓘ linked to: Medicare.gov
country	United States ⓘ linked to: United States of America
coverageTypeAffected	Medicare Advantage HMO plans ⓘ linked to: Medicare Part C Medicare Advantage PPO plans ⓘ linked to: Medicare Part C other Medicare Advantage plan types ⓘ
doesNotAllowAction	initial enrollment into Medicare Advantage for people not already in a Medicare Advantage plan ⓘ multiple plan changes; only one change is allowed ⓘ switch from Original Medicare to Medicare Advantage ⓘ
effectiveDateRule	plan changes generally take effect on the first day of the month after the plan receives the request ⓘ
endDatePattern	March 31 each year ⓘ
endDay	31 ⓘ
endMonth	March ⓘ
governingAgency	U.S. Department of Health and Human Services ⓘ linked to: United States Department of Health and Human Services
hasLimitation	does not apply to Medicare Supplement (Medigap) policies ⓘ only one plan change is permitted during the period ⓘ
introducedYear	2019 ⓘ
languageInLaw	Medicare Advantage open enrollment period ⓘ
legalBasis	federal Medicare statutes and regulations ⓘ
occursAnnually	true ⓘ
partOf	Medicare program ⓘ linked to: Medicare
purpose	to give Medicare Advantage enrollees an opportunity to change coverage early in the year ⓘ
regulates	changes in Medicare Advantage coverage ⓘ
relatedTo	Medicare Annual Enrollment Period ⓘ linked to: Annual Enrollment Period Medicare General Enrollment Period ⓘ linked to: General Enrollment Period
replaced	former Medicare Advantage Disenrollment Period ⓘ
requires	existing enrollment in a Medicare Advantage plan as of January 1 of that year ⓘ
scope	Medicare Advantage plans with or without prescription drug coverage ⓘ
startDatePattern	January 1 each year ⓘ
startDay	1 ⓘ
startMonth	January ⓘ
targetPopulation	Medicare beneficiaries with Medicare Part A and Part B enrolled in a Medicare Advantage plan ⓘ
timeOfYear	early calendar year ⓘ

How these facts were elicited

Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

General Enrollment Period → notFor → Medicare Advantage Open Enrollment Period ⓘ

Annual Enrollment Period → alsoKnownAs → Medicare Open Enrollment Period ⓘ

linked to: Medicare Advantage Open Enrollment Period

Annual Enrollment Period → isDistinctFrom → Medicare Advantage Open Enrollment Period ⓘ

Medicare Advantage Open Enrollment Period → alsoKnownAs → Medicare Advantage OEP ⓘ

linked to: Medicare Advantage Open Enrollment Period

Medicare Annual Enrollment Period → relatedPeriod → Medicare Open Enrollment Period for Medicare Advantage and Part D ⓘ

subject linked to: AEP

linked to: Medicare Advantage Open Enrollment Period

Medicare Plan Finder → relatedTo → Medicare Advantage Open Enrollment Period ⓘ

subject linked to: Medicare Plan Finder tool

Special Enrollment Periods for Medicare Part D → distinctFrom → Medicare Advantage Open Enrollment Period ⓘ

All labels observed (4)

How this entity was disambiguated Show

Statements (48)

How these facts were elicited Show

Referenced by (7)

How this entity was disambiguated

How these facts were elicited