Elements Behavioral Health is led by an experienced team of medical, management and marketing professionals who are passionate about improving the lives of those struggling with addiction and mental health disorders.

Board of Directors

Rich Whitney Non Exec Chairman of the Board, Elements Behavioral Health, Chairman & CEO, Radiology Partners, Inc.
Chris Karkenny President and Chief Executive Officer, Elements Behavioral Health
David Sack, M.D. Vice Chairman and Chief Medical Officer, Elements Behavioral Health
Nader Naini General Partner, Frazier Healthcare Ventures
Mohamad Makhzoumi Partner, New Enterprise Associates

Management Members

chris karkenny

Chris Karkenny
President and Chief Executive Officer

Chris has more than 25 years of experience buying, building and growing companies, with a focus on healthcare services and health insurance. He excels at managing in complex, high-growth environments and has a successful track record in helping companies substantially grow revenue and cash flow for both public and private companies. Through successful repositioning strategies that provided industry-leading quality of care, Chris has created more than $8 billion in value for shareholders.

Chris has served as Operating Partner at Frazier Healthcare Partners since 2015. Prior to joining Frazier, Chris served as Executive Vice President and CFO at Apria Healthcare, a national home healthcare services and infusion company with more than $2 billion in revenue, 550 locations, and 14,000 employees. While at Apria, he orchestrated a key $350 million acquisition, creating the largest national home infusion company (later sold to CVS Caremark). He led the sale of Apria to The Blackstone Group in a take-private transaction. Under his tenure, revenues grew over 60% through organic growth, denovo branches and strategic acquisitions, all while maintaining industry-leading standards for quality of care.

Before Apria, Chris served as Senior Vice President of Corporate Development, Strategy and Finance at PacifiCare Health Systems, a national health insurance company with more than 10,000 employees. He led corporate development through a period of rapid growth from $11 billion in revenue to over $15 billion in revenue through organic growth, focused strategic acquisitions and complex integrations. He earlier held executive leadership positions at Quarterdeck Corporation, NetCatalyst, and ICS.

Chris holds a BSBA from the University of Richmond and an MBA from the George L. Graziadio School of Business and Management at Pepperdine University.

David Sack, MD

David Sack, MD
Vice Chairman and Chief Medical Officer

Dr. Sack is board certified in psychiatry, addiction psychiatry and addiction medicine. He previously served as president of College Health IPA, now the largest behavioral health group in California. Dr. Sack’s prior positions include Senior Vice President of Community Programs for Aspen Education Group, which he grew from a start-up to more than $20 million in annual revenue, and Senior Vice President of Clinical Research for Comprehensive NeuroScience, a CNS-focused site management organization, where he grew his division from $5 million to $30 million in annual revenues.


A sought-after media expert, Dr. Sack has appeared on Dateline NBC, Good Morning America, The Early Show, E! News, The Doctors, and many other outlets. He has also been interviewed and quoted by the major print media, including The New York Times, The Los Angeles Times, and Time Magazine. . Visit to learn more.

Frank Wiacek

Frank Wiacek
Chief Relationship & Outreach Officer

Frank brings 23 years of sales leadership experience to Elements Behavioral Health. Previously, he served on Elements’ advisory board and held several executive positions with EMC Corporation. At EMC, he built the company’s SMB presence, achieving over 800% growth in just 2.5 years. He also served as general manager for the EMC/Dell business unit, growing annual revenues to nearly $2 billion. In his role as area vice president for EMC’s Western region, Frank was awarded top honors for both revenue and growth.

Nick Poan

Nicolas Poan, CPA
Chief Financial Officer

Nick has over 15 years of experience delivering successful business outcomes through finance, operational and administration channels in both public and private companies, most notably in the healthcare services industry. Previously, Nick served as Senior Vice President and Chief Accounting Officer at Envision Healthcare, where he led organizational, financial and system restructuring to achieve strategic objectives and meet targeted financial performance levels.

He worked for 10 years at Alliance Healthcare Services, Inc., a diagnostic imaging and cancer treatment company, where he served as Senior Vice President, Corporate Finance and Chief Accounting Officer. Nick also worked at Deloitte & Touche LLP and is a certified public accountant.

Nick holds a bachelor’s degree in accounting from the George L. Argyros School of Business & Economics at Chapman University.

Edye Bauer

Edye Bauer, JD
General Counsel

Edye has more than 15 years of experience at AmLaw 100 law firms and as in-house counsel at privately held companies. Prior to joining Elements Behavioral Health, Edye served as Senior Director of Legal Affairs at Lytx, Inc., a privately held technology company in the commercial transportation industry. Prior to that, she was a Partner at several highly regarded law firms in Southern California. Edye has represented companies in various stages of development across several industries, including healthcare, technology, social media and Internet services.

Edye holds bachelor’s degrees in International Relations and East Asian Area Studies from the University of Southern California. She earned her law degree from Stanford University and is a member of the State Bar of California.

Lisa Getson

Lisa Getson
SVP Compliance & Human Resources

Coming Soon

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