Stanford Children's Health Staff

Physician Practice Manager

Patrick Hare, MS

Patrick Hare is a member of the Clinic Administration, assigned in 2017 as Practice Manager of the Developmental-Behavioral Pediatrics team. His 20+ years of financial and operations experience is essential to support this program’s growing needs. His interests are organizational development, team building and lean methodologies.

Department Manager

Anne DeBattista, PhD, CPNP, CPMHS

Dr. DeBattista is a pediatric nurse practitioner. She received both her Masters of Science degree and doctoral degree at University of California San Francisco (UCSF). Anne has two national board certifications through the Pediatric Nursing Certification Board, in Pediatrics and in Mental-Behavioral Health. Anne is on the Executive Board of the Society of Developmental and Behavioral Pediatrics and has had leadership roles in the National Association of Pediatric Nurse Practitioners (NAPNAP). Anne has a longstanding history of community leadership with San Mateo County First 5 (Preemie Project and Watch Me Grow Medical–Community Collaborations) and Santa Cruz County First 5 Neurodevelopmental Foster Care program.

Clinical Psychologists

Megan Allen, PhD

Dr. Allen conducts developmental and psychological evaluations for children and adolescents. She completed her internship at The Children's Hospital Denver and her fellowship in the Department of Child and Adolescent Psychiatry at Stanford. Special interests include young child assessment, learning disorders, attention deficit hyperactivity disorder, and anxiety.

Mark Beidelman, PsyD

Dr. Beidelman got his PsyD in clinical psychology from the California School of Professional Psychology at Alliant International University in San Francisco. His current clinical duties are split between the Developmental Behavioral Pediatrics Program at Stanford Children's Health and the Pediatric Neuropsychology Department at Kaiser Permanente, San Francisco. Dr. Beidelman also participates in neurodevelopment research, acting as a supervising neuropsychologist at the Stanford Cognitive & Systems Neuroscience Lab.

Barbara Bentley, PsyD MS

Dr. Bentley provides assessment and consultation for children with developmental and/or behavioral concerns.  She provides clinical services for the Developmental Consultation, Autism and Social Communication, High Risk Infant Follow Up,  Children’s Hearing Center Cochlear Implant Program, and the Santa Cruz County FIRST 5 Foster Care Programs.  She also has training as a medical educator.

Maria Elena DeAnda, PhD

Dr. DeAnda is bilingual in Spanish. She conducts developmental assesments of young children and also provides parent education about Autism Spectrum Disorders in Spanish.

Beth Earhart, PsyD

Dr. Earhart conducts developmental and neuropsychological evaluations for children and adolescents. She completed her internship and two-year fellowship at Children’s Hospital Los Angeles. Her special interests include pediatric neuropsychology and childhood grief and loss. She studied Spanish in Costa Rica, conducting bilingual therapeutic services and assessments.

Casey Krueger, PhD

Dr. Krueger, our lead psychologist, received her bachelor’s degree in psychology from Georgetown University and her doctorate in clinical psychology from the California School of Professional Psychology.  She completed her postdoctoral fellowship in neuropsychology at the University of California, San Francisco Memory & Aging Center. She provides neurodevelopmental, psychological, and neuropsychological evaluations for diagnostic and treatment planning purposes. Services are provided to infants and children with developmental and behavioral difficulties. Research interests include alterations in executive functioning and neurodevelopmental outcomes of children with metabolic disorders.

Ryan Lucash, PhD

Dr. Lucash conducts developmental assessments and consultations for children and adolescents. She completed her internship at the Children’s Hospital of Orange County and her two-year post-doctoral fellowship at Children’s Hospital Los Angeles. Her special interests include working with children with chronic illnesses, including cancer, kidney disease, and cranio-facial abnormalities.  She also has special interest in working with children with disruptive behavior disorders and is a Certified Trainer in Parent-Child Interaction Therapy through PCIT International.

Natalie Poursohrab-Wager, PsyD

Dr. Poursohrab-Wager completed her master’s degree from Pepperdine University and her doctorate from The Wright Institute. She interned at Sutter Health's California Pacific Medical Center (CPMC) in the Child and Adolescent Psychiatry Department and the Child Development Center, focusing on neuropsychological evaluations and evidence-based treatments. She completed a postdoctoral fellowship at Morrissey-Compton Educational Center, where she specialized in evaluating children with neurodevelopmental disabilities. Special interests include autism, attention deficit hyperactivity disorder, and learning disorders.  Dr. Poursohrab-Wager is bilingual in Farsi.

Heather Taylor, PhD

Dr. Taylor completed her undergraduate degree at U.C. Berkeley and her doctoral degree at UCLA. She interned in the Child and Adolescent Psychology Track at Bellevue/NYU Child Study Center and completed her training as a Postdoctoral Fellow in Clinical Child Psychology at Stanford University, where she worked in the Anxiety and Behavioral Disorders Clinic and the Autism and Developmental Disabilities Clinic. Clinical areas of interest include adoption, attention and behavioral disorders, autism, and a variety of anxiety disorders, such as OCD, selective mutism, separation anxiety, and specific phobia.

Advanced Practice Nurses & Clinical Coordinators

Elizabeth Dawes, MSN, PNP

Cheryl Goldfarb-Greenwood, RNC, MN, CNS

Cheryl Goldfarb-Greenwood is a Pediatric Clinical Nurse Specialist and Clinicial Coordinator for Developmental-Behavioral Pediatrics. Ms. Goldfarb-Greenwood is involved in community outreach, advocacy, parent and professional education.


Katharine Helder

Sandy Lombardi-Lytle, RN, CCM, IBCLC, PHN

Sandy has spent her entire nursing career with a focus on the NICU population and their families. She graduated from San Francisco State University with a Bachelors in Science Nursing Degree and a Public Health Nurse certification. Her nursing career started in the Intensive Care Nursery, and she has since become an International Board Certified Lactation Consultant (IBCLC) and a Certified Case Manager (CCM). In 2014 she joined Developmental-Behavioral Pediatrics as the High Risk Infant Follow Up Program Coordinator.  In keeping with her commitment to the NICU population and their families, Sandy now has the opportunity to strengthen the bridge from inpatient to outpatient care, providing important follow-up and support.

Colleen Marcisz, RNC-NIC, CCM

Colleen comes to Developmental-Behavioral Pediatrics after a long career as a neonatal nurse. She has special interests in children who have spent time in a NICU and parent support and education

Chris O’Halloran, LCSW, MPH, PhD

Nancy Sugajski, MSN, RN, PHN

Nancy Sugajski, RN, MSN, PHN earned her Bachelor of Science in Nursing, her Master of Science in Nursing and Public Health Nurse certification from the University of San Francisco. Nancy works in Developmental Behavioral Pediatrics as the Project Coordinator of the Stanford arm of First 5 San Mateo County Watch Me Grow Program. This arm provides access to developmental and behavioral pediatrics at pediatric primary care sites in San Mateo County and fosters professional collaboration to address complex medical and/or social barriers to health. As the parent of a child with special needs, Nancy has found her niche in nursing which has allowed her the ability to use her experience to help other families through challenging situations.

Administrative Staff

Jannah Chavez

Jannah Chavez has worked for Stanford Children's Hospital since 2007. She has worked for a variety of pediatric specialties including Surgical Sub-specialties, Neurology, Neurosurgery, General Surgery and Pain Management in the Neuroscience Department. During her tenure, she has discovered her passion through her own experience in the High Risk Infant Follow-up Program and Autism Spectrum Disorder Program through Kaiser. She applies her personal experience and knowledge to provide world-class, passionate care to the community. She is trilingual in English, Tagalog and Spanish.

Crystal Escalante

Crystal Escalante is an Intake Coordinator for Developmental-Behavioral Pediatrics and has been with the department since 2015. She has over 10 years of experience working for children with mental health issues and serious emotional disorders. She also has 7 years of management experience in both medical and non-clinical roles. Her skill set has been a value in assisting the clinical team for Developmental-Behavioral Pediatrics.

Nidia Floyd

Xiomara Gervacio

Xiomara Gervacio came on board with the Developmental-Behavioral Pediatrics team as an intake coordinator in February 2016 and since then has taken the lead in facilitating our Middle Childhood program. Her experience as a certified medical assistant and administrative support is an asset to the team. She is bilingual and has been exceptional in serving our Spanish speaking families.

Coral Oropeza

Coral Oropeza has worked for Stanford Children's Hospital since 2007 in the Neuroscience Department. She is bilingual in English and Spanish and provides excellent customer service. Coral focuses on coordinating services for children in the High Risk Infant Follow-up program. 

Lifdy Villegas

Lifdy (who goes by Lily) Villegas joined the Developmental-Behavioral Pediatrics team in 2018. She is bilingual in English and Spanish and focuses on facilitating our Young Childhood program.