Medicare Advantage Open Enrollment Period
E549824
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Medicare Advantage Open Enrollment Period canonical | 2 |
| Medicare Open Enrollment Period | 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.
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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.
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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.
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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 NERFINISHED ⓘ |
| 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
NERFINISHED
ⓘ
Medicare Advantage OEP NERFINISHED ⓘ |
| 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
NERFINISHED
ⓘ
Medicare.gov website NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| coverageTypeAffected |
Medicare Advantage HMO plans
NERFINISHED
ⓘ
Medicare Advantage PPO plans NERFINISHED ⓘ 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 NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
| 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
NERFINISHED
ⓘ
Medicare General Enrollment Period NERFINISHED ⓘ |
| 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
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Medicare Advantage Open Enrollment Period Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Medicare Open Enrollment Period