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Caring for Both Mental and Physical Health in Children
A child’s health is more than just the physical health — it is the foundation for their growth, learning, and emotional well-being. Research has shown that mental health and physical health are deeply interconnected. Children with untreated anxiety, depression, or behavioral issues may struggle with sleep, nutrition, immunity, and academic performance. Similarly, chronic physical conditions can impact a child’s emotional development and self-esteem.
At Happiness Pediatrics, we believe in caring for the whole child. That’s why we are proud to be the only pediatric practice in the region that fully integrates mental health services within our primary care model using the Collaborative Care Model (CoCM). This innovative, evidence-based approach allows our pediatricians, child psychiatrists, and behavioral health specialists to work as a unified interdisciplinary team—identifying concerns early, providing timely intervention, and tracking progress collaboratively.<br>
By embedding mental health care into routine pediatric visits, we reduce stigma, improve access, and ensure that families receive comprehensive, compassionate support under one roof. At Happiness Pediatrics, your child’s body, mind, and spirit all matter—because true health is holistic.
Fanyin Zhang
PMHNP-BC
Fanyin Zhang graduated from the University of Pennsylvania with a Master of Science in Nursing, specializing as a Psychiatric Mental Health Nurse Practitioner (PMHNP). She is dedicated to providing high-quality, comprehensive mental health care for children, adolescents, and adults. Fanyin Zhang brings extensive clinical experience, having worked in the inpatient psychiatry units at the Hospital of the University of Pennsylvania and Pennsylvania Hospital. She specializes in psychiatric assessments, medication management, and crisis intervention. She is skilled in using DSM-5 criteria for diagnosis and proficient in various psychotherapy approaches, including Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Trauma-Informed Care. Fluent in English and Mandarin, Fanyin Zhang provides attentive and culturally sensitive care to patients from diverse linguistic backgrounds. Beyond her clinical work, Fanyin Zhang is deeply committed to community service, actively participating in children’s health education, youth mental health programs, and community opioid overdose prevention initiatives. She believes that mental health care extends beyond the clinic into the community. Whether helping patients manage anxiety, depression, or stress, or supporting children in building confidence and positive behaviors, Fanyin Zhang approaches every patient and family with professionalism, compassion, and warmth.
Wendy Tan
LMSW
Social worker Wendy Tan, a graduate of Adelphi University with a master’s degree in social work, has frontline experience across early intervention, school-based, and residential care settings. She has worked at organizations such as Kids First Early Intervention, Good Shepherd Services, and Regal Heights Rehabilitation Center, serving young children with developmental and intellectual disabilities including Autism Spectrum Disorder, school-aged youth navigating behavioral and emotional challenges, and elderly residents in rehabilitation care. She specializes in trauma-informed, strengths-based practice with youth and families. She provides psychosocial assessments, treatment planning, crisis intervention, and collaborative case management, working alongside interdisciplinary teams including speech, occupational, and physical therapy specialists. She utilizes strengths-based approaches and CBT techniques to help students and families work through behavioral and emotional difficulties, while also supporting caregivers of young children with developmental delays through in-home parent education and coaching. Fluent in English, Mandarin, and Cantonese, she is able to connect with diverse families and communities, building trust and delivering culturally responsive care.