Our Team

Dr. Donald Siggins

Clinical Program Director

Dr. Donald Siggins brings a wealth of practical knowledge and solutions to those suffering from substance abuse. After returning from Vietnam and leaving the Marine Corp., Dr. Siggins enrolled at UCLA and graduated Magna Cum Laude with a Bachelor of Arts in History and Education. He went on to receive his Ph.D. from the University of San Francisco and has established a successful career in both the public sector as a professor and in private practice in the field of addiction.

Dr. Deirdre Habermehl, MD

Medical Doctor

Dr. Deirdre Habermehl graduated from the NYU School of Medicine in 1985. She brings nearly 40 years of experience specializing in Family Medicine, Addiction Medicine, Public Health & General Preventive Medicine and speaks both English and Spanish. Dr. Habermehl is a member of the California Society of Addiction Medicine.

James Johnson, AMFT, CADCIII

Program Director

James is a California licensed CADCIII (Certified Addiction Counselor Level 3).  He also holds a Master’s in Psychology and holds an AMFT license. He specializes in: Family systems, Cognitive Behavior Therapy, Dialectic Behavior Therapy, Trauma Informed care and talk therapy.