Helen Tam

Helen Tam.png

Helen Tam

Psychologist, PhD


Trinity Psychological Services LLC
75 N. Maple Ave, Suite 101 B | Ridgewood, NJ 07450
516 Route 303, Suite 1 | Orangeburg, NY 10962

Specialties & Expertise

  • Child or Adolescent

  • Developmental Disorders

  • Learning Disabilities

Phone: (551) 250-1017 , (201) 689-5126 x3

Email :dr.c.osullivan@trinitypsychology.com



  • Toddlers / Preschoolers (0 to 6)

  • Children (6 to 10)

  • Preteens / Tweens (11 to 13)

  • Adolescents / Teenagers (14 to 19)


  • Bisexual Allied

  • Cancer

  • Gay Allied

  • Lesbian Allied

  • Non-Binary Allied

  • Transgender Allied


Out of Network

Professional Statement

I am a staff neuropsychologist at Trinity Psychological Services LLC. I work with children ages 4 through 21 who demonstrate a range of neurodevelopmental (e.g., ADHD, learning disabilities, language disorders, etc.), psychiatric (e.g., anxiety disorders, OCD, depression, etc.), or medical concerns (e.g., diabetes, congenital heart defects, neurofibromatosis, childhood cancers, etc.). The goals of my assessments are to help children further understand themselves, identify evidence-based supports for children/families, and help parents/young adults prioritize services. My recommendations are tailored to your child's needs.

My approach to assessment stems from my training in child development, brain-behavior relationships, neuro developmental disorders, pediatric psychology, and child/adolescent mental health. I completed a Pediatric Neuropsychology Fellowship at NYU Langone Child Study Center and a Pediatric Neuropsychology Internship at The University of Chicago.

At Trinity Psychological Services, we strive to create a warm, nurturing environment to assess your child's needs. It is a difficult decision to seek out an evaluation for your child. To ease the stress of this decision, we provide free 15 minute phone consultations to discuss the evaluation process with you.

Also speak: Mandarin


  • School: Penn State- Clinical Psychology

  • Year Graduated: 2016

  • License and State: 35SI00602800 New Jersey