Katherine Koh, MD, MSc is a practicing psychiatrist at Mass General Hospital, a member of the Street Team at the Boston Health Care for the Homeless Program and an Assistant Professor in Psychiatry at Harvard Medical School. As a member of the street team at BHCHP, she focuses her clinical care on homeless patients who live on the street through a combination of street outreach, clinic sessions, and home visits for patients recently or unstably housed. She also maintains a general outpatient practice at MGH and conducts research on the health of homeless populations. Her primary interest is improving systems of mental health care for homeless patients.