Our Team


Dr. Helene O’Mahony, PhD

Executive Director/Founder, PhD Clinical Psychologist

After years of working with physicians post-treatment in my private practice and by providing support groups as required by the California Medical Board, Kaiser Permanente, and other Wellbeing Committees, I have identified a pressing need for a specialized residential treatment program tailored to physicians and doctors. At The Practice OC, they will experience a secure and empathetic environment, not only due to the presence of doctorate-level therapists and highly trained staff but also through the camaraderie of their peers. Countless times, individuals in my groups have expressed, ‘No one understands what we go through as physicians more than each other.’ 

Dr. Andrew Schneider, DO

Medical Director

Dr. Joseph Desanto, MD

Director of Medical Services

Dr. Stefani LaFrenierre, MD


Dr. Christian Vincent, PhD, LMFT

Primary Therapist

Dr. Tricia Marzullo, PsyD.


Dr. Brett Furst, PsyD., LMFT


Dr Corrine Leikam, PsyD.


Braxton Callais

Executive Chef

Bryan Johnson, AMFT, CADC-I


Jordan Spektor, MBA


Lenny Segal LMSW, MBA