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Therapist Profile

» Provider Directory » Find a Therapist » New York » Great Neck Therapists » Therapist Profile


Marc J. Diener, PhD

Office: 1 Barstow Road, Suite P6
Great Neck, NY 11021
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Web Site:
Profession: Psychologist
Services: Psychotherapy/Counseling
Career Evaluations and Counseling
Neuropsychological Testing
Psychiatric Evaluations
Psychoeducational Evaluations
Psychological Evaluations
Psychological Testing
Practice Description: You have a lot of choices in selecting a therapist and psychologist. What's different about me and my practice?

(1) You're getting an expert: I have a PhD in Clinical Psychology, I completed advanced training in my postdoctoral fellowship, and I trained at prestigious institutions, including Bellevue Hospital and St. Luke's Roosevelt Hospital Center/University Hospital of Columbia University College of Physicians and Surgeons.

(2) I am an internationally recognized scholar in psychotherapy research, personality assessment, and psychotherapy integration (synthesizing techniques and approaches from a number of widely used psychotherapy methods).

(3) I have trained the next generation of clinical psychologists for almost a decade: I have been a full-time psychology professor in American Psychological Association accredited clinical psychology doctoral programs since 2007.

(4) I provide a variety of high-quality psychology services, including Psychotherapy and Psychological Testing.

(5) I have a number of specialty areas in my practice, including therapy for substance abuse, depression, anxiety, and relationship difficulties, as well as testing for Learning Disorders, ADHD, personality assessment, and comprehensive diagnostic evaluations.

Please visit my website for more information:
Practice Specialties or Interests:

(Strengths are
in bold text)
Substance Abuse
Anxiety Disorders/Phobias
Adjustment Disorder
Anger Management
Bipolar Disorder
Dually Diagnosed Individuals
Learning Disabilities
Life Transitions
Personal Growth
Relationship Issues
Sexual Abuse
Sleep Disorders
Smoking Cessation
Stress Management
Age Specialties: Adolescents
Session Formats: Individual
Treatment Approaches: Behavioral
Self Psychology
Additional Demographic Expertise: African American
Asian American
Latino American
Education: Ph.D., Adelphi University, 2006

M.A., Adelphi University, 2003

B.A., Yeshiva University, 2001
License #: 017465
Licensed In: New York
Professional Affiliations:
Fellow of the American Psychological Association (Division of Independent Practice)
Society for the Advancement of Psychotherapy (Division 29, American Psychological Association)
American Psychological Association
Society for Psychotherapy Research
Society for Personality Assessment
Society for the Exploration of Psychotherapy Integration
Accepted Insurance: Any PPO (with Out-of-Network Benefits)

Marc J. Diener, PhD, Psychologist in Great Neck

 Other Practice Locations
Roslyn, NY 11576
Hewlett, NY 11557

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 Additional Information
Years in Practice:  6-10
Gender:  Male
Accepting New Clients:  Yes
Sliding Fee Scale:  Yes
Prescribe Medication:  No
Wheelchair Accessible:  Yes

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Last Modified: 12/5/2020  

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