Dr. Kleinbaum is a Licensed Psychologist and divides his time between his private practice and a hospital where he administers a large psychiatric clinic.

Previously Dr. Kleinbaum was the Director of Behavioral Health of a pain medicine center located in Westchester, NY, and worked with teenagers in a substance abuse program in New York City. He also has extensive forensic experience.

Dr. Kleinbaum received his Doctorate in Clinical Psychology from The Graduate Faculty of The New School for Social Research in New York City and interned at Downstate Medical Center/Kings County Hospital in Brooklyn, NY. He was appointed to the faculty of Downstate Medical Center. 

Professional affiliations include: American Psychological Association, American Society of Clinical Hypnosis, Association for Applied Psychophysiology and Biofeedback, International Critical Incident Stress Foundation, International Society for Neuronal Regulation, New York State Psychological Association.