Rady Children's Specialists


Angelman Syndrome Clinic

Rady Children’s has partnered with the Angelman Syndrome Foundation’s specialists from the UC San Diego Neurosciences Department and psychologist and behavioral therapist Rochelle Calvert, Ph.D., BDBA-D, to open the nation’s fourth Angelman Syndrome Clinic. The clinic will serve Angelman syndrome patients from birth through adulthood, providing comprehensive care for medical, developmental and behavioral needs.

Our multidisciplinary team includes a clinical geneticist, neurologists, a developmental psychologist, board-certified behavior analysts (all with extensive experience with Angelman syndrome), a gastroenterologist, a clinical dietitian, a speech therapist and an orthopedic surgeon.

The team’s clinical expertise is complemented by extensive research experience. We can connect patients with research opportunities such as the Angelman Syndrome Natural History Study as well as clinical trials. Rady Children’s is currently a site for a clinical trial on gaboxadol to treat Angelman syndrome in adults and adolescents.


Mark Nespeca, M.D., Clinical Director, Pediatric Neurologist/Epileptologist and Angelman Syndrome Researcher, Rady Children’s

Vanessa Aldas, R.D., M.P.H., Clinical Dietitian and Epilepsy Diet Therapy Specialist, Rady Children’s

Ayala Ben-Tal, Ph.D., Developmental Psychologist and Angelman Syndrome Researcher, Rady Children’s

Lynne M. Bird, M.D., Clinical Geneticist and Principal Investigator, Angelman Syndrome Natural History Study and STAR Trial of Gabaxidol in Angelman Syndrome Teens/Adults, Rady Children’s

Rochelle Calvert, Ph.D., BDBA-D, Psychologist and Behavior Therapist, New Mindful Life, San Diego (Private Practice)

Hank Chambers, M.D., Orthopedic Surgeon and Director, Cerebral Palsy Center, Rady Children’s

Rebecca Cherry, M.D., Gastroenterologist, Rady Children’s

Catherine Dabasinskas, M.A, Speech Communication Disorders Specialist, Rady Chidlren’s

Abbey Hye, M.A., BCBA Behavior Therapist, Rady Children’s

Leena Kansal, M.D., Adult Neurologist/Epileptologist, UC San Diego Neurosciences

David Lee, M.D., Ph.D, Adult Neurologist/Epileptologist, UC San Diego Neurosciences

About Angelman Syndrome

Angelman syndrome is a complex neurogenetic disorder that primarily affects the nervous system. Signs and symptoms include delayed development (noticeable by the age of 6 to 12 months), intellectual disability, severe speech impairment and problems with movement and balance (ataxia). Most affected individuals also have recurrent seizures (epilepsy). Gastrointestinal problems, orthopedic challenges, and behavior and sleep issues are common. The condition requires lifelong care.


For more information and resources, visit the Angelman Syndrome Foundation at https://angelman.org.

Contact Us

To make or facilitate appointments, please call Marlene Uriarte at 858-966-6459. Visits will occur on Mondays and Tuesdays during two weeks of nearly every upcoming month, with ketogenic diet appointments available on Wednesdays.

In the News

Angelman Syndrome Treatment Market Expansion Projected to Gain an Uptick During 2018 to 2028The Newsman, mentions Rady Children’s Hospital–San Diego