Leadership

Dr. LaMar Hasbrouck is the Chief Operating Officer of the Cook County Department of Public Health, a subsidiary of Cook County Health. 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 (AMA), 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. He also hosted their international podcast, AMA Doc Talk.

Dr. Hasbrouck has been on the frontline of disease outbreaks, including swine flu, MERS, Ebola, and Zika virus, in the US and abroad. He spent twelve years as a senior medical officer and “disease detective” 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. During the COVID-19 pandemic Dr. Hasbrouck advised Fortune 500 companies on virus mitigation and safe re-opening strategies. He was a frequent contributor, columnist, and medical expert for several national media outlets. His latest book, COVID Bytes: Naked Musings of a Disease Detective (February 2022), demystifies modern-day public health approaches to pandemics.

Dr. Hasbrouck earned his bachelor and Master of Public Health degrees from the University of California-Berkeley and his doctoral degree from the David Geffen School of Medicine at UCLA. He completed his internal medicine residency at the 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, a primary care health policy fellow with the Health Resources Services Administration (HRSA), and former member of the Advisory Committee to the CDC Director, Health Disparities Subcommittee. He has served on the faculty at schools of medicine and public health and is the recipient of numerous awards for his governmental and non-governmental work.

Dr. Rachel Rubin is board certified in Internal Medicine and Preventive Medicine. She moved into her Senior Medical Officer position with the Cook County Health Department in 2014 and held the role of Co-Lead of the Department from 2020-2022.

Her main areas of responsibility include oversight of the Communicable Diseases Unit, Environmental Health Services Unit and the Tuberculosis medical services and well as leading the Quality Improvement Program of the agency. She also has been serving as the agency’s incident commander for the COVID-19 response.

She is adjunct faculty at the University of Illinois, School of Public Health and has served as the Program Director of service grants from the National Institute of Occupational Safety and Health and the Department of Labor. She is part of the core faculty of the Preventive Medicine residency program at Cook County Health.

Gina Massuda Barnett is the Deputy Director of Public Health Programs at the Cook County Department of Public Health (CCDPH). In her current position, Gina oversees the community health planning process for CCDPH’s jurisdiction and supports a team of leaders responsible for chronic disease prevention and control, community engagement, lead poisoning prevention and healthy homes, and worker health and safety. She further strategically manages all COVID-19-related grants to ensure alignment with the agency’s strategic direction and priorities.

Gina is known for galvanizing the power of collaboration and leveraging resources to advance positive change.  Most of her 20+ year career in public health has been with CCDPH where she has led and facilitated region-wide organizational and community change initiatives promoting healthy living and equity. Gina has been recognized for her leadership in public health and has authored, or participated, in several publications.