Importance: Family and unpaid caregivers often play an active role in managing the care of older adults with activity limitations.; Objective: To examine caregivers' experiences with older adults' health care workers.; Design, Setting, and Participants: This survey study constitutes a secondary analysis of a sample of 1916 family and unpaid caregivers to 1203 community-living older adults with activity limitations who participated in the 2017 National Health and Aging Trends Study.