Our Clinical Team
Founder and Lead Practitioner
William is a Board-Certified Psychiatric Mental Health Nurse Practitioner with 15 years of clinical experience dedicated to helping adults navigate mental health challenges. His work has spanned rural, suburban, and urban communities, providing care in inpatient settings and supporting individuals facing anxiety, depression, trauma, and complex mood disorders. He is committed to delivering thoughtful, evidence-based treatment tailored to each person’s unique needs.
Born and raised in New Jersey, William developed a deep appreciation for the many factors that shape mental well-being. His approach is rooted in both traditional psychiatric care and a broader understanding of how lifestyle influences emotional health. While his primary role is that of a psychiatric nurse practitioner, he also has a background as a professional chef and nutrition specialist. This experience informs his perspective, particularly in the growing field of nutritional psychiatry, where food and mental health intersect in meaningful ways.
William believes that mental health treatment should be a collaborative process. In sessions, he works closely with individuals to develop treatment plans that align with their goals—whether that includes medication management, non-pharmacologic strategies, or a combination of both. He also recognizes the importance of coordinating care with other professionals involved in a person’s well-being to ensure a comprehensive and integrated approach.
If someone is ready to take the next step, William is here to help guide them toward a stronger, healthier future.
Medical Director and Collaborating Physician
Dr. Leonid Begun is a board-certified general psychiatrist with over 10 years of clinical experience dedicated to providing comprehensive mental health care across the lifespan. Raised in New Jersey, Dr. Begun pursued his undergraduate studies in Psychology at Rutgers University, where his early interest in the human mind and behavior took root. He went on to earn his medical degree from Ross University School of Medicine and completed his residency training in General Psychiatry at Jersey Shore University Medical Center. His diverse training background and commitment to excellence have shaped a well-rounded, patient-centered approach to care.
Dr. Begun currently practices at Holy Name Medical Center, where he treats a wide range of psychiatric conditions, including depression, anxiety, ADHD, Autism Spectrum Disorders, psychosis, Bipolar Disorder, and addiction and withdrawal syndromes. He provides care to children, adolescents, adults, and older adults in both outpatient and inpatient settings. In his role as a consult liaison psychiatrist, he supports patients navigating the overlap of physical and mental health challenges, offering guidance and psychiatric care in hospital-based medical settings. His clinical style emphasizes collaboration, trust, and whole-person care.
In addition to his work with patients, Dr. Begun has contributed to academic research, particularly in the emerging field of psychogastroenterology. He has published work on the gut-brain axis and its impact on gastrointestinal disorders, bringing valuable insight into how physical health and mental health are deeply interconnected. This holistic understanding informs his approach to psychiatry, combining clinical expertise with an ongoing curiosity about how systems in the body and mind influence one another. Dr. Begun brings a thoughtful, integrative perspective to every patient he treats.