Our Leadership Team


Christy Dye


Christy’s background spans more than 25 years as a state administrator, provider and system leader in managed behavioral health, healthcare integration and recovery-focused provider networks in Arizona and other...
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Chief Medical Officer and Vice President of Clinical Services

Darwyn Chern


Dr. Chern is a fellow of both the American Psychiatric Association and American Society of Addiction Medicine, and is serving his second term as president-elect to the Arizona Society...
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Deputy Chief Executive Officer

Stacy Ray Garner


Stacy is a seasoned behavioral health administrator with more than 26 years experience in delivering and overseeing care for persons with a serious mental illness in Maricopa County. Stacy...
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Chief Human Resources and Corporate Compliance Officer

MaryLou Galaviz


MaryLou began her human resources career in 1995 and has worked in diverse capacities in the education, social services, behavioral health, and consulting business sectors. At PIR she is...
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Chief Business Strategy Officer

Tiffany R. White


Tiffany brings a passion for business efficiency and process improvement that allows her to serve as an impact agent in PIR’s overall business strategy and innovation roadmap. She oversees...
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Chief Transformation Officer

Hoa Mai

Hoa grew up in Vietnam during the Vietnam War era. He escaped by boat alone as a 15-year old refugee seeking freedom from persecution. Hoa eventually came to the...
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Chief Integration Officer

Leanette Henagan


Dr. Henagan hails from the great state of Michigan and is a proud Michigan State University Alum. With more than 13 years of healthcare experience, Dr. Henagan has expertise...
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Director of Population Health

Michael Franczak


Michael Franczak serves as the Director of Population Health. Dr. Franczak has been involved in mental health, substance abuse and development disability services in Pennsylvania, North Carolina and Arizona...
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Director of Quality Management

Andrew M. Terech


Andrew oversees the agency’s quality improvement and regulatory activities using a data driven, partnership approach to enhance the quality of care for all PIR campuses and the people they...
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Director of Nursing and Innovation - Infection Control Officer

Aspen St. John


Aspen has always had a passion for psychiatric nursing, and has spent her entire nursing career serving in this specialty practice. She began her employment with PIR in 2009...
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Campus Leadership

Norm Sartor, MHI

East Valley Campus

Dr. Marlena Gonzales-Gabaldon, DBH., LPC.

Arrowhead Campus

Alycia Worst, LCSW

Metro Campus

Dawn Richmond, MS


Byron Hoston, BA

Gateway Campus

Colleen Meyer, MBA

West Valley Campus

Gail Salentes, MA

Medical ACT Team