David Buchanan M.D., M.S. is the Executive Medical Director for Illinois at Oak Street Health. Dr. Buchanan is responsible for supporting the primary care, APN and complex care teams in Illinois. Additionally, he is responsible for advancing critical clinical initiatives that support safety, population health, and quality operations across the organization.
Dr. Buchanan is an accomplished clinician and leader, with an impressive track record of success for scaling organizations and championing strategic initiatives. Most recently he served as Chief Clinical Officer of Erie Family Health Center, a network of primary care centers in the Chicago area. In that role, he helped the organization nearly triple in size of the practice, recruited and led more than 200 medical, behavioral health, and oral health providers, and designed an innovative care model including care management and the population health program. He chaired multiple boards and Clinical Committees, including for a Coordinated Care Entity, an Accountable Care Organization and a Health Center Controlled Network focused on Health IT. Prior to his time at Erie, Dr. Buchanan held multiple positions at the Cook County Health and Hospital System, including Head of the Section of Social Medicine and Director of Medical Student Programs at Cook County Hospital.