Final answer:
DSNP members can disenroll during the Annual Enrollment Period and once every quarter for the first 9 months of the year.
Step-by-step explanation:
A DSNP (Dual Eligible Special Needs Plan) member can disenroll from their plan during certain specific times. According to Medicare guidelines, a DSNP member can disenroll during the Annual Enrollment Period, which runs from October 15 to December 7 each year. Additionally, DSNP members have the option to disenroll one time every quarter during the first 9 months of the year. This means they can change plans once during each of the following periods: January-March, April-June, and July-September.