Medicare 101: Medicare Basics from Minnesota's Senior LinkAge Line Senior LinkAge Line can help you understand Medicare. FREE 2-hour classes are offered on a monthly basis at 606 NW 5th St, Brainerd. 3rd Tuesday of each month from 9:30 am-Noom. Call kathy Krueger Senior LinkAge Advocate Senior inkAge Lineat1-800-333-2433 ext 83076 or 0033-2433 kathy.krueger@cmcoa.org for an upcoming free class. Senior LinkAge Line is a service of the Central MN Council on Aging and the MN Board on Aging. It does not sell, market, or endorse, any insurance products. Center for Medicare Services.