In health insurance, open enrollment is a period during which a person may enroll in or change their selection of health plan benefits. Health plan enrollment is ordinarily subject to restrictions.
In Medicare, there are several enrollment periods, including:
- Initial Enrollment Period
- Special Enrollment Period
- Annual Enrollment Period (for Medicare Advantage and Part D)
- General Enrollment Period
- Open Enrollment Period (for Medicare Advantage and Part D)
- Medigap Open Enrollment Period (aka, Medicare Supplement Open Enrollment)