Dr. Frank John Ninivaggi, M.D., F.A.P.A., is an Associate Attending physician at the Yale-New Haven Hospital, an Assistant Clinical Professor of Child Psychiatry at the Yale University School of Medicine Child Study Center in New Haven, Connecticut, member of the Yale-New Haven Community Medical Group, and the Medical Director of the Devereux Glenholme School in Washington, Connecticut.
He is Board Certified in Psychiatry and Neurology. In 2004, he received the distinction of certification as Fellow of the American Psychiatric Association. He is in private practice, performs school consultations, and teaches at Yale.
He has authored several textbooks. His longstanding research on intelligence has been published in Kaplan & Sadock's Comprehensive Textbook of Psychiatry, eds. Sadock, Sadock, & Ruiz, Lippincott William & Wilkins, (2005) 8th edition, and updated in the current (2009) 9th edition and 2015 (10th edition). Also included in the 9th and 10th edition is a new chapter on "Malingering." Dr. Ninivaggi has also published a chapter on "The Psychology of Aging" in Yue et al.'s The Comprehensive Treatment of the Aging Spine: Minimally Invasive and Advanced Techniques, and has written several textbooks on Eastern medicine.