This report describes the evolution of a Boston community health center's multidisciplinary model of transgender healthcare, research, education, and dissemination of best practices. This process began with the development of a community-based approach to care that has been refined over almost 20 years where transgender patients have received tailored services through the Transgender Health Program. The program began as a response to unmet clinical needs and has grown through recognition that our local culturally responsive approach that links clinical care with biobehavioral and health services research, education, training, and advocacy promotes social justice and health equity for transgender people. Fenway Health's holistic public health efforts recognize the key role of gender affirmation in the care and well-being of transgender people worldwide.