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About Peter LaMantia, LMHC

Peter LaMantia

I am a licensed mental health counselor (LMHC) and board certified (NCC) therapist specializing in individual, couples and group counseling. I maintain my private practice in Garden City in Nassau County, Long Island. I received my Bachelor's degree in Psychology from Princeton University, and my Master's degree in Mental Health Counseling from Adelphi University. I have also received advanced clinical training in Psychoanalysis, as well as Group Psychotherapy, from the Derner Institute of Advanced Psychological Studies.

I have experience with a broad spectrum of adult and adolescent patients in a wide variety of settings, such as outpatient mental health and substance abuse clinics. My practice foci include work centered around identity, self-esteem, relationship difficulties and anxiety/depression. My other areas of interest include working with people who are experiencing shyness, creative blocks, performance anxiety, or adjusting to major life transitions such as divorce or going away to college. 


Adelphi University, Master's Degree - Mental Health Counseling
Princeton University, Bachelor's Degree - Psychology

Specialized Clinical Training
Four-Year Post Graduate Certificate in Psychoanalysis (Advanced Candidate)
Two-Year Post Graduate Certificate in Group Psychotherapy (Advanced Candidate)

One-Year Post Graduate Certificate in Psychoanalytic Psychotherapy

License & Certifications
NYS License #004321

National Certified Counselor #336032


Professional Activities and Memberships
American Psychotherapy Association
New York State Mental Health Counselors Association
Give an Hour - Therapy for United States Veterans
National Education Association
Princeton Alumni Schools Committee
Adelphi Society for Psychotherapy and Psychoanalysis


Darley, J.M, Sanderson, C.A., & LaMantia, P.S. (1996). Community Standards for Defining Attempt:  Inconsistencies With the Modal Penal Code. American Behavioral Scientist, 39(4), 405-420.