Dr. Guenter is a family physician, Associate Professor at McMaster University, and co-director at McMaster Family Practice, one of two academic clinics in the McMaster Family Health Team. He is a co-founder of the Shelter Health Network and is a collaborator with the Ateneo de Zamboanga School of Medicine in the Philippines. His clinical interests include HIV care, chronic pain, mental health and addictions. His research interests are concerned with health care delivery and determinants of health.