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Leadership Team

Leadership Team

Meet the Team at Cedar Hills

Our leadership team is comprised of a wide variety of professionals with unique backgrounds who all share a dedication to helping patients heal and learn to overcome obstacles.

David Melear, MS, M.ED.

David Melear, MS, M.ED.
Chief Executive Officer

Mario Bolivar
Director of The Military Program

Mario Bolivar, MSW, LCSW, received his undergraduate degree in Psychology as a member of the scholar’s program at Portland State University. He also completed his graduate degree at Portland State University. Mario has extensive clinical and administrative experience in community mental health psychiatric hospitals, residential treatment programs, and as a contributor to the Department of Defense Military Programs throughout the Western States and the Pacific Northwest. Mario has a special interest in multicultural treatment, military trauma and substance use disorders.

Jennifer Brown, RN
Chief Nursing Officer

Jennifer received her nursing degree in 2012 from Kaplan College in San Diego, California. She joined Cedar Hills Hospital in 2016 as a nurse on the Crisis Stabilization Unit. As CNO she is using her time spent with some of the hospital’s most at risk patients and her Human Resource background to lead the nursing team.

Alex Drilling
Director of Outpatient Services

Alex Drilling, MHA has worked at Cedar Hills Hospital since 2011, having served in both coordinator and management roles with the Cedar Hills Hospital Outpatient Department prior to becoming the Director of Outpatient Services in 2018. Alex received bachelor’s degrees in Psychology and Sociology from Portland State University, and his Master of Healthcare Administration from Walden University. As a native Oregonian and Portlander, Alex has a passion for the outdoors, spending time with his family, and rooting for the Blazers.

Joan Marie Onnagan
Director of Performance Improvement

Joan Marie currently serves as the Performance Improvement Director at Cedar Hills Hospital. She started her career in healthcare as a Certified Nursing Assistant in 2010 and soon pursed her interest in medical records when the opportunity arose. With a Bachelor’s degree in Nursing, she applied her strong clinical background and practical knowledge and has earned this Director role. Joan Marie has served as HIM manager elsewhere, managing busy long term and subacute skilled nursing facilities Health Information Departments. She is new to Oregon having relocated from California. She spends her days off travelling, staying physically active exploring the beauty of the Pacific Northwest.

Karen Phifer, LCSW
Director of Clinical Services

Karen Phifer, LCSW joins the leadership team at Cedar Hills Hospital as the new Director of Clinical Services. Phifer is in charge of ensuring successful day-to-day clinical operations, discharge processes, and delivery of clinical services in the hospital.

Prior to joining Cedar Hills Hospital, Phifer was the program manager at Legacy Health’s CARES Northwest, a unified, community-based medical program founded in 1987 whose efforts focus on the assessment, treatment and prevention of child abuse. During her 16 years at CARES, Phifer led the day-to-day of the multi-million dollar program and was responsible for the development and implementation of new programs. She is an alum of Portland State University School of Social Work.

If you or a loved one is struggling with mental illness, substance abuse or psychiatric distress, please call us at 503-944-5000 for a no-cost, confidential assessment. We cannot offer diagnosis, counseling or recommendations online, but professionals are available to speak with you 24 hours a day, seven days a week. If you are currently experiencing an emergency, please dial 911 or go to the nearest emergency room.