Sierra Tucson Expands Prestigious Medical Professional Team


TUCSON, Ariz. (Nov. 16, 2017) – Sierra Tucson, an internationally renowned leader in behavioral and mental health care, reaffirms its commitment to the highest level of resident care with the addition of three new medical team members.

Bennet E. Davis, MD, joined Sierra Tucson as the director of the Pain Recovery Program. Dr. Davis is board certified in anesthesiology and pain medicine, and completed his undergraduate studies at Stanford University in Stanford, Calif. He received his medical degree from Case Western Reserve University in Cleveland, Ohio. As an adjunct associate professor at the University of Arizona College of Pharmacy, Dr. Davis actively trains pharmacy students, as well as family practice residents and primary care physicians. He is vested in helping the State’s primary care system and co-authored/co-investigated the first National Institutes of Health-funded online Pain Medicine CME program for primary care physicians.

Additionally, Oliver Cooperman, MD, joined Sierra Tucson’s medical team as the director of the Trauma Recovery Program. He specializes in four areas of psychiatry: adolescents and young adults, individuals being treated for addictions, psychotherapy and trauma patients. Dr. Cooperman is a graduate of Harvard Medical School in Boston and has a lifelong interest in integrative care. Prior to joining Sierra Tucson, Dr. Cooperman was a psychiatrist for several innovative programs in Northern Arizona. In addition, he served as the medical director of Mingus Mountain Academy, in Yavapai County, Ariz., a residential treatment program for teenage girls who are mostly survivors of severe trauma.

As the director of nursing, Loralie Yzerman, RN, will be leading a team of more than 80 nursing team members comprised of nurse managers, nurses, triage nurses, nursing assistants, dietitians and nutritionists. Yzerman has more than 25 years of critical care nursing experience and received her nursing degree from the British Columbia Institute of Technology in British Columbia, Canada. Most recently she served as director of nursing at the Betty Ford Center. Additionally, in 2000, she received the American Association of Critical-Care Nurses’ Excellence in Caring Practices Award.

“We are excited to have these esteemed professionals join our dynamic medical team,” said Valerie Kading, interim chief medical officer at Sierra Tucson. “I am impressed by the vision these three have for Sierra Tucson and enthusiastic about continued high level of compassionate care.”

To learn more about Sierra Tucson’s programs, please visit

About Sierra Tucson

For more than 33 years, Sierra Tucson’s longstanding legacy of clinical excellence and compassionate care has resulted in recovery for those struggling with substance use disorder, trauma-related issues, disordered eating, chronic pain, mood and anxiety disorders, and co-occurring disorders. Internationally renowned for its innovative approach to behavioral and mental health treatment, Sierra Tucson was the co-recipient of the 2017 Clinical Excellence Award by Acadia Healthcare. Sierra Tucson combines integrative and experiential therapies with evidence-based practices to provide a full range of treatment methods. Call 800-842-4487 or visit