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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.

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C. Lamar Frizzell
Chief Executive Officer

C. Lamar Frizzell, CEO of Cedar Hills Hospital, has worked in the field of behavioral healthcare for over 20 years. Most recently, Frizzell held a similar role at Willow Creek Behavioral Health located in Green Bay, Wisconsin. Frizzell brings practical experience as a line-staff member and is educated in the fields of both Mental Health and Divinity. He will be an exceptional addition to Oregon’s effort to address the mental health needs of the community.

Frizzell is a Ph.D. candidate in both Communications and Rhetoric and in Practical Theology from Mid-America Baptist Theological Seminary (MABTS). He holds a Master’s degree in Divinity from MABTS and a Bachelor of Arts degree from Bryan College.

Mario Bolivar, Director of The Military Program

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, Assistant Director of Nursing | CedarHillsHospital.com

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
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.

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Ryan Harris, MA, LPC, LMHC
Director of Clinical Services

Ryan Harris earned his Bachelors in Psychology from Western Washington University 1998, and secured his Master’s Degree in Counseling Psychology from St. Martin’s University in 2008. He is currently a Licensed Professional Counselor in the State of Oregon, and a Licensed Mental Health Counselor in Washington State. Ryan has worked with the severely mentally ill for over 20 years. He has experience as a Program Manager, Clinical Director, and now Director of Clinical Services. Ryan enjoys working closely with his staff, and patients here at Cedar Hills Hospital.

Dave McCampbell

Dave Mc Campbell
Executive Chef and Dietary Manager

Chef Dave has returned home to Portland as the Dietary Manager and Executive Chef at Cedar Hills Hospital. With extensive food production management experience in healthcare and restaurants, he has consulted for Portland restaurants, designing kitchens, seasonal menus, cost analysis, staff training, and safety standards. Now in Healthcare, Dave is driven by his passion and values to create “food as medicine.” Recently, he managed food production and purchasing for the largest hospital in the Providence system, Sacred Heart in Spokane. Dave has led a seminar in Washington D.C focused on creative cost control in healthcare food service and was asked to do a live cooking show for PBS, “Farm-to-Table.” Born and raised in Portland, Dave spends his free time enjoying sports and outdoor activities with his two boys.

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Michael Metzger
Chief Financial Officer

Michael (Mike) Metzger serves as the CFO for Cedar Hills Hospital. With more than 30 years in the financial management space, Mike comes to Cedar Hills Hospital with a wealth of applied experience. He came to Oregon in 2019 from Illinois where he worked for Good Samaritan and Kindred Hospitals, respectively

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Joan Marie Onnagan
Health Information Director

Joan Marie currently serves as the Health Information Management (HIM) 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 degree in Nursing, she applied her strong clinical background and practical knowledge and has earned this Director role. Joan Marie has served in the role HIM program manager elsewhere, managing busy long term and subacute skilled nursing facilities Health Information Departments. She is new to Oregon having relocated from California with her fiancé. Joan Marie spends her days off travelling, working out and exploring the beauty of the Pacific Northwest.

Marty Perry, Director of Performance Improvement

Marty Perry, MS
Director of Performance Improvement, Risk Management, and Compliance

Marty Perry began working at Cedar Hills Hospital as the Director of Assessment Services and has since stepped into his current role as Director of Performance Improvement. Additionally, he currently serves as the hospital’s Compliance Officer and its Privacy Officer. Marty received a master’s degree from the University of North Texas in Counseling Psychology, after which he worked in a community mental health setting and later a private counseling practice. Marty went on to eventually join the management team of a psychiatric hospital in Texas and then a substance abuse treatment center in Minnesota before moving to Portland in 2009 to join the Cedar Hills team that opened the hospital.

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Christine Mayo Powers, PharmD
Manager of Pharmacy

Dr. Christine Mayo Powers, PharmD is a board certified clinical pharmacist who works with physicians and nurses to provide safe and effective pharmacotherapy for patients who are in treatment at Cedar Hills Hospital. She earned her clinical pharmacy degree and specialization in aging from The Ohio State University in Columbus, Ohio. Dr. Powers completed her residency in Inpatient Pharmacy Practice at Providence Health & Services in Portland, OR. She brings 13 years of clinical pharmacy expertise to Cedar Hills Hospital.

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Michael Sorensen, MPA
Director of Business Development

Michael Sorensen joined the team at Cedar Hills Hospital and Outpatient Services in 2019. He works to bring awareness to the community about the programs we offer. Michael has worked in the healthcare industry managing efforts to ameliorate health disparities, end AIDS, support folks with cancer, address mental health and substance use issues, and access primary care and more. He holds a Master’s degree in Public Administration from Portland State University and a Bachelor of Arts degree from Marylhurst University. Michael was born in Portland, OR and though he has lived in many cities across the country, Portland always calls him home.

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Tonya Tucker-Tafolla, RN
Assistant Chief of Nursing

Tonya Tucker-Tafolla, RN is new to the administrative team and new to Oregon. She works to help assure care quality and safety at Cedar Hill Hospital. Previously, she worked as the Regional Director and Healthcare Consultant at Loree Tamayo Consultanting in Texas.

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Kathie Yelliott, LCSW
Director of Assessment

Kathie Yelliott, LCSW, has over 25 years of clinical, therapeutic and management experience and has a passion for providing service excellence. Kathie has a Master’s Degree in Social work and is a Licensed Clinical Social Worker in the State of Oregon. She enjoys traveling, is an avid hiker, a lifelong learner and is an active supporter of many local charities, including programs for foster children, programs to reduce suicide, provide education surrounding mental health and addictions and programs to increase food security for local community members.

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.