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William Christiana, Psy.D.

Dr. Christiana is a licensed clinical psychologist with specialized training in the assessment and treatment of mood, anxiety, and alcohol use disorders. He strives to create a safe, supportive, and collaborative partnership with his patients, viewing this as the foundation for all forms of psychotherapy and counseling. His approach is driven by Cognitive Behavioral Therapy (CBT), an active, directive, and problem-focused form of treatment rooted in psychological science. Dr. Christiana will work diligently to understand your unique challenges and then tailor evidence-based interventions to your personal needs, goals, and background. The plan is to achieve both symptom relief and meaningful change in accordance with your values.  While taking the first step towards change is a difficult one, it is often the most important. You don’t need to do it alone. Dr. Christiana can offer a clinical evaluation and individual psychotherapy services to you or a loved one.

Clinical Psychologist

NY Lic. # 020992, NJ Lic # 6227

Dr. William Christiana


Dr. Christiana completed his B.A. in Psychology at Montclair State University. He was an active member in the Cognitive Neuroimaging Laboratory, where he studied autism and the neurological underpinnings of self-awareness. His graduate work began at Villanova University, where he studied infant cognitive development, as well as the relationship between personality traits and maladaptive beliefs. At the same time, he was fortunate to volunteer and work at the Beck Institute for Cognitive Therapy and Research, which is where he received his initial training in CBT and developed a passion for clinical work. After earning his M.S. in Experimental Psychology from Villanova, he completed his doctoral studies at the Graduate School of Applied and Professional Psychology (GSAPP) at Rutgers University. Dr. Christiana received extensive clinical training in the diagnosis and treatment of substance use disorders at the Center of Alcohol Studies (CAS) and the Program for Addictions Consultation and Treatment (PACT) at Rutgers. He completed his dissertation at New York-Presbyterian Hospital - Weill-Cornell Medical Center in White Plains, where he studied the effectiveness of Inpatient Group CBT for Depression. Dr. Christiana completed his pre-doctoral internship at the University of Medicine and Dentistry of New Jersey - New Jersey Medical School - University Behavioral Health Care (now Rutgers University Behavioral Healthcare), earning his Psy.D. in Clinical Psychology soon after. Dr. Christiana completed his Postdoctoral Fellowship in Clinical Psychology at the Manhattan VA Medical Center, with a specialized focus on Clinical Health Psychology and Interprofessional Training in Primary Care. 


After completing his postdoctoral fellowship, Dr. Christiana began working at Mount Sinai St- Luke’s Hospital. He was a psychologist at the Comprehensive Assessment Center, where he would conduct diagnostic assessments and facilitate referrals to the various outpatient, intensive outpatient, and inpatient services within the hospital system. Dr. Christiana was also a member of the Psychology Training Committee and supervised psychology interns and post-doctoral fellows in clinical diagnostic evaluations. He later returned to the VA-NY Harbor Healthcare System, to work as a clinical psychologist at the Staten Island VA Community Clinic and the Brooklyn VA Medical Center, providing diagnostic evaluations, consultation services, and individual psychotherapy to veterans in NYC. He currently retains his position at the VA in addition to his private practice work at Quiet Mind CBT.

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