Meet Our Team

All Summit Center professionals believe that building trusting relationships with our clients is the foundation of our work, and we are dedicated to focusing on a strengths-based approach to help our clients reach their fullest developmental potential.

Our talented and experienced doctors, evaluators, and other service providers work out of our offices in Northern California (Walnut Creek and Corte Madera) and Southern California (Torrance).

Daniel B. Peters, Ph.D.

Executive Director

Co-Founder

Licensed Psychologist,

PSY 16823

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Susan Daniels, Ph.D.

Educational Director

Co-Founder

Educational Consultant

Professor Emerita 

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Michelle L. Freeman, Psy.D.

Associate Director
Director of Assessment

Neuropsychologist, PSY 23888

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Stephen H. Chou, Psy.D.

Director of Training and Research

Licensed Psychologist,

PSY 19254

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Evaluations

Ellena Chen, Psy.D.

Licensed Psychologist,

PSY31146

Walnut Creek

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Katherine EngKatherine Eng, Ph.D.

Licensed Psychologist,

PSY 21108

Walnut Creek

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Lisa L. Hancock, Ph.D., MBA

Licensed Clinical Psychologist

PSY 31333

Certified Autism Specialist

Torrance

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Amy Parlin FeldmanAmy Parlin Feldman, M.Ed.

Licensed Educational Psychologist (LEP #3900)

Evaluator

Walnut Creek

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Jeannie M. Lopez, Ph.D.

Licensed Psychologist/

Neuropsychologist,

PSY 18357

Walnut Creek

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Lisa Nakamura, Psy.D.

Licensed Psychologist,

PSY24188

Walnut Creek

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Rupa Robbins, Ph.D.

Licensed Psychologist,

PSY 31111

Walnut Creek

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Lisa White, Ph.D.

Licensed Psychologist,

PSY 26400

Walnut Creek

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Brennan Whitley, Psy.D.

Licensed Psychologist,

PSY31143

Walnut Creek

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Counseling & Consultations

Gabriela Bronson-CastainGabriela Bronson-Castain, Psy.D.

Licensed Psychologist,

PSY 23904

Walnut Creek

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Ellena Chen, Psy.D.

Licensed Psychologist,

PSY31146

Walnut Creek

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Kathleen D. Crombie, M.A.,M.Ed.

Parent Consultant

SENG Parent Group Facilitator and Trainer

Walnut Creek

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Lisa L. Hancock, Ph.D., MBA

Licensed Clinical Psychologist

PSY 31333

Certified Autism Specialist

Torrance

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Melanie Hayes, Ed.D.

Marriage & Family Therapist Intern

Supervised by Dr. Gabriela Bronson-Castain, PSY 23904

Walnut Creek

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Ginny Ritchey, Ph.D.

Licensed Psychologist, PSY 26238

Walnut Creek, Corte Madera

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Rupa Robbins, Ph.D.

Licensed Psychologist,

PSY 31111

Walnut Creek

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Educational Services

Deanna M. Kim, M.Ed.

Educational Therapist

Walnut Creek

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Melanie Soloway, J.D., C.P.E.

Parent Educator

Los Angeles

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Training Program

Gohar Jaffer

Practicum Trainee

Supervised by Katherine Eng, Ph.D., PSY 21108

Walnut Creek

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Olivia McDonald, M.A.

Registered Psychological Assistant

Supervised by Dr. Gabriela Bronson-Castain, PSY 23904 and Lisa White, Ph.D., PSY 26400

Walnut Creek

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Cyrell Roberson, M.A.

Predoctoral Intern

Psychological Assistant, PSB 94024338

Supervised by Dr. Gabriela Bronson-Castain, PSY 23904 and Dr. Michelle Freeman, PSY 23888

Walnut Creek

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Administration Team

Alyssa Handley

Information & Services Coordinator

info@summitcenter.us

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Carly Wade

Receptionist & Administrative Assistant

reception@summitcenter.us

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Michelle Mortara

Intake & Administrative Manager

intake@summitcenter.us

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Shelly Jeffra

Billing & HR Administrator

billing@summitcenter.us

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Elizabeth Shook

Communications Manager

update@summitcenter.us

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