Professional identity formation is central to physicians' identity over their full careers. There is little guidance within military service on how to leave careers as clinician educator faculty in graduate medical education programs. The objective of our study was to explore how leaving this community of practice (COP) affects a clinician educator's professional identity. We used reflexive thematic analysis with Communities of Practice as a sensitizing construct. Fifteen semi-structured interviews were conducted among active-duty clinician educators at the point of their retirement from the military. Interview questions focused participants' lived experiences as clinician educators and professional identity changes leading to and resulting from the decision to retire. We found the clinician educators' journey through a time of professional transition led to three connected themes: Loss Precedes Growth, Fallow Season-Liminal Space, and New Growth. The experiences of military clinician educators retiring from active duty demonstrate how leaving one COP emanates across a range of professional identities. In addition, the decision to leave a professional COP can lead to a sense of disloyalty to that community. Normalizing this transition in a way that honors the community's values offers the opportunity to enable the decision to retire. Understanding retirement as a process that first involves identity loss, followed by the discomfort of a liminal space before achieving new growth creates the opportunity to engage in rituals that celebrate the service of departing community members, releasing them to grow into new identities.