Dr. LaMar Hasbrouck is the Chief Operating Officer of the Cook County Department of Public Health, a subsidiary of Cook County Health.

During the COVID-19 pandemic Dr. Hasbrouck advised Fortune 500 companies on virus mitigation and safe re-opening strategies. He previously served as the Executive Director for the National Association of County and City Health Officials which represents the nation’s 3,000 local health departments. Prior to that, Dr. Hasbrouck was the Director of the Illinois Department of Public Health. Additionally, he served as a Senior Advisor for Strategy at the American Medical Association, charged with growing relationships with health care systems, community health centers, payers, and other public/private entities to eliminate gaps in chronic disease prevention across all populations. Dr. Hasbrouck also spent twelve years as senior medical officer at the US Centers for Disease Control and Prevention (CDC) where he was actively engaged in two of the largest global health initiatives in history: the World Health Organization’s polio eradication program and the US President’s Emergency Plan for AIDS Relief.

Dr. Hasbrouck earned his Masters of Public Health from the University of California-Berkeley and his doctorate from the David Geffen School of Medicine at UCLA. His internal medicine residency took place at New York-Presbyterian Hospital. He received a certificate in State Health Leadership from the Harvard Kennedy School and earned his MBA from the University of Saint Mary.

He is a diplomat with the American Board of Internal Medicine and a former member of the Advisory Committee to the CDC Director, Health Disparities Subcommittee.