Objective:To describe case managers' perceptions of the physician‐case manager relationship.Design:A qualitative field study using in‐depth open‐ended interviews was used to elicit case managers' experiences and practices. A muladisciplinary team analyzed transcripts using an adaptation of the “grounded theory” approach of Glaser and Strauss.Participants/Setting:Case managers were selected for interview using a maximum variation sampling strategy within an established state‐wide case management agency.Main Outcome Measures:Transcript analysis allowed for the organization of observations into themes, which were merged across interviews to generate theses.Results:Case managers report that: (1) The case manager role is poorly understood by physicians. (2) Physicians lack insight into the social and environmental aspects of home‐bound elderly people. (3) Access to physician services is often difficult to obtain. (4) Power struggles occasionally surface in care planning. (5) Decisions by physicians and case managers regarding the care of frail elderly are often made from different agenda.Conclusions:From the perspective of case managers, gaps in interprofessional communication may hinder the optimal care of frail elderly individuals.J Am Geriatr Soc