About Dr. DioGuardi

Decades of experience. A genuinely human approach.

Dr. Richard J. DioGuardi has dedicated his career to helping individuals and families in Westchester County navigate life's most challenging moments — with compassion, expertise, and care.

Dr. Richard J. DioGuardi, Ph.D.

Background & training

Dr. DioGuardi earned his B.A. in Psychology from Cornell University and his Ph.D. in Clinical Psychology from St. John's University. He completed his clinical internship at the Institute of Living and Connecticut Children's Medical Center in Hartford, CT — two highly regarded training centers specializing in psychiatric and pediatric care.

He holds a New York State license in psychology as well as a New York State Certification in School Psychology. He has been in private practice in Harrison, NY (600 Mamaroneck Avenue, Suite 400) for over two decades, bringing experience across hospital, school, and outpatient settings to his work with each client.

Dr. DioGuardi served as an Assistant Professor of Psychology at Iona University for several years, where he taught graduate and undergraduate courses. He has published peer-reviewed research articles on classroom interventions, internet addiction, childhood aggression and victimization, and related topics.

He is an active member of the New York State Psychological Association and the Westchester Psychological Association, and has been featured on News 12 Westchester and in Westchester Magazine discussing psychological issues pertaining to children and adolescents.

Credentials & affiliations

  • B.A. in Psychology, Cornell University
  • Ph.D. in Clinical Psychology, St. John's University
  • Licensed Psychologist, New York State
  • New York State Certification in School Psychology
  • Clinical Internship — Institute of Living & Connecticut Children's Medical Center, Hartford, CT
  • Former Assistant Professor of Psychology, Iona University
  • Member, New York State Psychological Association
  • Member, Westchester Psychological Association
  • Featured on News 12 Westchester and in Westchester Magazine
  • Published research on classroom interventions, internet addiction, childhood aggression and victimization, and related topics

Therapeutic approach

Dr. DioGuardi's work is grounded in the belief that every person deserves to be met with respect, curiosity, and genuine care. His approach is collaborative — he works with clients, not at them.

Evidence-based

Treatment is informed by the best available research, tailored to each individual's unique needs and goals.

Collaborative

Therapy is a partnership. Dr. DioGuardi works alongside clients to set meaningful goals and track progress together.

Developmentally sensitive

Whether working with a young child, a teenager, or an adult, Dr. DioGuardi adapts his approach to fit the person in front of him.

Trauma-informed

All care is delivered with an awareness of how past experiences shape present challenges — and present strengths.

Ready to take the first step?

Dr. DioGuardi's office is a welcoming, confidential space. Reaching out is the hardest part — and you don't have to have it all figured out to begin.

Richard J. DioGuardi, Ph.D.

Licensed Psychologist

600 Mamaroneck Avenue, Suite 400, Harrison, NY 10528
Westchester County
(914) 233-7177

© 2026 Richard J. DioGuardi, Ph.D. All rights reserved.

600 Mamaroneck Avenue, Suite 400, Harrison, NY 10528 · Westchester County