Sierra Tucson Staff

Note: The following is a partial list of the professionals who compose the Sierra Tucson staff. For specific information about any staff member — or for any other information about Sierra Tucson — complete a contact form on our Contact Us page.


Philip Herschman

Executive Director

Dr. Philip Herschman is a national behavioral healthcare expert with over 35 years of experience. He is a featured speaker on clinical excellence and addiction treatment with keynote and panel conference presentations for the West Coast Symposium of Addiction Disorders, the National Association of Addiction Treatment Providers (NAATP), Moment of Change, and the CRC Health Group Professional Development Workshop. Dr. Herschman has been a featured expert for The Today Show, magazines like Time, Renew, Addiction Professional, and Behavioral Healthcare, as well as Alcoholism and Drug Abuse Weekly (ADAW), Metro newspaper, Health News Digest, Click On Detroit, Technorati, RTTNews, and radio shows such as the John Tesh radio show, Mancow Experience, IRN/USA Radio Network, KXYL-AM Texas, and KLZZ-FM Minnesota. In his role as Chief Clinical Officer for CRC Health Group,

Dr. Herschman is responsible for the measurement and improvement of clinical services and the research and development of new treatment technologies. He also oversees the CRC Clinical Advisory Board of distinguished healthcare industry experts. Before joining CRC in 2002, Dr. Herschman served as Chief Executive Officer of Behavioral Health Concepts, a national mental health management company that he founded in 1993. He also spent eight years with Republic/OrNda Health Corporation where he developed and managed free-standing psychiatric and substance abuse treatment hospitals. Prior to Republic, he served as Regional Vice President of Operations for Horizon Health.

Dr. Herschman began his career as a Clinical Psychologist in Southern California where he practiced for 10 years. Dr. Herschman currently sits on the Board of Starpoint Health, an outpatient surgery center management company, and on the Clinical and Scientific Advisory Board of NOVX Systems Inc., a point-of-collection drug screening solution company. He is a past Board member for the California Opioid Maintenance Providers (COMP) association. He holds a Ph.D. in Clinical Psychology from the University of California, Irvine, and a B.A. from the University of California, San Diego.

Keyne Petkovic, M.S., CAPPM

Associate Executive Director / Interim Director of Intake

Keyne Petkovic brings 15+ years of management experience and a passion for employee relations, system improvement, and budget management to her current position as Associate Executive Director. Keyne graduated from Pennsylvania State University with a B.S. in Psychology and minor in Business. She went on to receive her Master of Science degree in Community Counseling from Winona State University in 2001. Keyne joined Sierra Tucson in 2003 as a Medical Assessment and Stabilization Counselor and moved into an administrative role as Practice Manager for the Medical Department in 2005, bringing to this role her prior management experience from a non-profit social service agency. She became a Certified Administrator in Physician Practice Management in 2008. In 2009 she was promoted to Director of Medical Services, overseeing the operational management of the Medical Department, giving administrative oversight to the Medical staff and Psychology Department, and providing direct supervision of the Integrative Therapies Department, EMDR Therapists, Registered Dietitians, Eating Disorder Technicians, Scheduling Department, and Bookstore. In January 2014, Keyne was promoted to Associate Executive Director and currently manages the Integrative Therapies Department, Scheduling, Maintenance, Housekeeping, Food Services, and Human Resources, as well as serving as Interim Director of Intake.