In a participatory design process, patients as well as care providers play a critical role in the design and development of healthcare apps. However, special attention should be given to problematic group dynamics that may arise from unequal power across participants. In this paper, we present Turning Tables, a focus group method, inspired by social interdependence theory (SIT), to mitigate asymmetric power. First, we present our SIT-inspired protocol for conducting focus groups. Next, via a qualitative analysis of 2 focus groups, we describe group dynamics and evaluate our method. Observations show that by splitting teams into patients versus care providers, and by specifying turn-taking (giving the floor to patients first), unequal power can be mitigated. However, observations also show that participants default back into their traditional roles during less formalized moments.