top of page

About Us

We are a private practice clinic located in Southern California. 

Our clinicians are internationally recognized specialists in their field for assessment and treatment of ADHD and Related Disorders.


Our clinic is for children, teenagers and adults, and we have sub-specialty for those those with ADHD and have a high IQ.

ABout Our Specialty

After serving over 20 years on the clinical faculty of the Yale Medical School, Dr. Brown relocated with Ryan J. Kennedy, DNP, FNP-C in 2017 from Connecticut to re-open this specialty clinic in Manhattan Beach, California.

Our clinicians offer expert assessments and treatment for children, teenagers and adults using their specialized approach and up-to-date knowledge of neuroscience, research & evidence-based practice.

In the Brown Clinic, all patients begin with a comprehensive evaluation and treatment for attention and related problems often accompanied by various difficulties that undermine success in school, college, grad school, employment, social settings & and peer-relationships, sports/hobbies/social events, and at home with family & friends.


These difficulties may include the following listed below:

Attention, Memory, & Motivation


under-achievement problems

Anxiety Disorders

  • Generalized & Social Anxiety

Asperger's Syndrome

  • High IQ-Autism (level 1)


Cognitive Problems in Menopause

Emotion Regulation

  • Quick to Frustration/Irritability

  • Sensitivity to Rejection

Depressive Disorders

Bipolar Disorders

Obsessive-Compulsive Disorders

Parenting & Family Conflict

Specific Learning Problems

  • Math, Reading, & Writing

Sleep & Awakening difficulties

Alcohol & Drug Use


In this clinic those diagnosed with attention and learning problems can also receive expert psycho-educational testing which may be required to obtain accommodations in schools, universities and for SAT, ACT, GRE, MCAT, LSAT, GMAT, or professional credentialing tests. Other available services include psychotherapy, cognitive behavioral therapy, family therapy, and medication monitoring.

Our Team

Meet the team

Thomas E. Brown, PhD


Thomas E. Brown, PhD

Thomas E. Brown earned his Ph.D. in Clinical Psychology at Yale University and then served on the Yale faculty for 25 years. He is the Director of the Brown Clinic & Clinical Professor of Psychiatry & Neuroscience,

University of California, Riverside School of Medicine       


He has published 30 peer-reviewed  scientific journal articles and 5 ground-breaking books on ADD/ADHD. 


Dr. Brown is is an elected Fellow of the American Psychological Association.

Associate Director

Ryan Kennedy__2021__10_square-2.jpg

Ryan J. Kennedy is a board-certified, family nurse practitioner and received his doctorate in nursing practice from Quinnipiac University.


He specializes in assessment and psychopharmacology treatments for ADHD and comorbid disorders. Ryan has collaborated in research and writing with Dr. Brown for over 12 years.


Their work is published in books, medical literature and peer-reviewed articles, and present their research & posters at national and international conferences, universities & lectures.


At the Brown Clinic he provides assessment, treatment, medication management and therapy treatments for ADHD and related problems.

Liza Somilleda, MA

Educational Consultant


Liza is an experienced educator with both Special Education & Education Administration Credentials. She has over 17 years of school based experience, and extensive training & credentials in ABA. 


She assists parents in understanding the needs of their children with problems in attention, learning and behavior. Liza is also a certified PEERS social skills provider, and she specializes in working with children in middle and high school.

Liza's Services >

Ryan J. Kennedy, DNP, NP-C

bottom of page