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Medical Director

Dr. Christian O’Neil

Dr. Christian O’Neil is a California-licensed General Practice physician. After completing an
internship in psychiatry at the University of New Mexico in 2009, Dr O’Neil moved to California
to begin his career in the field of substance use disorder treatment.
During his career, Dr O’Neil has worked in most aspects of substance use disorder treatment
including serving as the medical director for the BAART-San Mateo methadone clinic from 2014
to 2016. Since 2016, Dr O’Neil has provided medical direction for residential, intensive out-
patient, out-patient, perinatal and withdrawal management (detox) treatment programs.
Dr O’Neil’s unique contribution combines education regarding the neurobiological
underpinnings of addiction with motivation drawn from his 30 years of personal recovery.

Clinicians & Staff

Louise McCallion

Founder / CEO

Dr. William Hanna

Executive Clinical Director

Olejan Hafstad

Executive Director

Patti Weiss Ph.D.

Licensed Clinical Neuropsychologist

Steve Balt, MD

Psychiatrist

Chad McCain, LMFT

Primary Therapist

John Foord, A-MFT

Primary Therapist

Sharon Johnson, LCSW

Primary Therapist

Ann Billington, LCSW

Primary Therapist

Stewart W. Bryant, LMFT

Primary Therapist

Lori Sparrow, LMFT

Primary Therapist

Tencia Sanchez

Drug & Alcohol Counselor

Albert Teixeira

Drug & Alcohol Counselor

Greg Loiacono, CADC II

Recovery in Music Counselor

Gregory Holmes

Chief Operating Officer

Ellen Barbieri, RN

Nurse Practitioner

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