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Leadership Team

Oregon Public Health Division's Leadership Team

PHD Organizational Chart


Director, Public Health Division

Lillian Shirley

Lillian Shirley, BSN, MPH, MPA is the Director for the Oregon Public Health Division. Ms. Shirley holds a bachelor’s degree in nursing from the University of the State of New York. She also holds a master’s degree in public health from Boston University and a master’s degree in public administration from the Kennedy School of Government at Harvard University.

Ms. Shirley has been a local and a national leader in advancing public health. Most recently, she led the Multnomah County Health Department. Before coming to Oregon, she was the Director of Public Health for the city of Boston and was also the first executive director of the Boston Health Commission, where she led the agency through the establishment, design and organization of the new public health authority in Boston.

Ms. Shirley has been a leader in Oregon’s effort to transform our state’s health care system. While at Multnomah County Health Department and on the governing board of Health Share of Oregon, she helped launch one of the first Coordinated Care Organizations in the state. She also served as the vice-chair of the Oregon Health Policy Board, and has played a vital role in the state’s move toward a health care system that works better for us all.

Ms. Shirley has served on the boards of the Public Health Foundation, the Oregon Public Health Institute, Portland Sustainable Development Commission and served as President of the National Association of City and County Health Officials. She is also adjunct faculty at the OHSU School of Medicine. She received the National Public Health Institute’s Balderson Award and has been recognized by Research America as a public health hero.


State Health Officer and State Epidemiologist

Dean Sidelinger

Dean Sidelinger, MD, MSEd, FAAP is the Health Officer and State Epidemiologist for the Oregon Public Health Division. In this role he supports public health practice, programs, and staff. 

Prior to joining the Oregon Health Authority, Dr. Sidelinger served as the Child Health Medical Officer and Interim Deputy Public Health Officer for the County of San Diego Health and Human Services Agency (HHSA). In this role, he helped provide strategic direction for HHSA programs that impacted children and public health through the County’s vision, Live Well San Diego, to help all County residents be healthy, be safe, and thrive. He worked across programs in behavioral health, child welfare, early childhood, eligibility operations, and public health. In addition, Dr. Sidelinger worked with multiple partners in the community from the education, health, and social service sectors. 

Dr. Sidelinger obtained his undergraduate degree in chemistry and medical degree from Georgetown University. He completed his pediatric internship and residency at the University of Tennessee Health Science Center in Memphis and a fellowship in Community Pediatrics at the University of California, San Diego. He also has a Master’s in Education from the University of Southern California.


Administrator, Center for Health Protection

André Ourso

André Ourso, MPH, JD is the Administrator for the Center for Health Protection. As Center Administrator, André oversees crucial programs that leverage public health’s licensing and regulatory tools to protect the health of all Oregonians. Before taking the position of Administrator, André managed the Oregon Medical Marijuana Program (OMMP) where he oversaw implementation of significant portions of Oregon’s regulatory scheme for marijuana legalization.

Prior to his arrival in Oregon in November 2015, André served as executive director of the Florida Board of Medicine. He also has served as an assistant general counsel supervising a team of attorneys and as a biological scientist and government operations consultant for the Florida Department of Health. He has a law degree and master of public health degree (epidemiology).


Administrator, Center for Prevention and Health Promotion

Timothy NoeTimothy Noe, PhD, is the Administrator for the Center for Prevention and Health Promotion. Dr. Noe received his PhD in Public Affairs (Public Policy and Management with a strong emphasis in organizational development and design) from the University of Colorado Denver. His work has focused on social determinants of health, organizational management and interventions to reduce health disparities.

Dr. Noe has worked in the social research field for 20 years, most recently at the University of Colorado Denver’s (UCD) Centers for American Indian and Alaska Native Health. He was also the director of the CDC-funded Center of Excellence in Eliminating Health Disparities and REACH National Network, which were comprehensive diabetes and cardiovascular disease risk reduction programs with urban American Indian clinics across the nation.


Administrator, Center for Public Health Practice

Collette YoungCollette Young, PhD is the Administrator of the Center for Public Health Practice. In that role, she provides oversight for state programs in Immunizations, Communicable Diseases, Vital Records, Emergency Preparedness as well as the Oregon State Public Health laboratory.

From 2009 to 2015, Dr. Young was a manager in the Acute and Communicable Disease Prevention and Immunizations sections.

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