Joshua Rosenthal, PsyD – Director & Owner

Dr. Rosenthal is a NY & NJ licensed clinical psychologist who specializes in the treatment of children, young adults and families. He maintains three offices on the UES and UWS in Manhattan where he serves as the resident psychologist for a multi-physician pediatric group and provides individual cognitive-behavioral therapy, Parent Child Interaction Therapy (PCIT), parent training, family therapy, and social skills training. Dr. Rosenthal has given grand rounds on Asperger’s Syndrome at Woodhull Medical Center and Lenox Hill Hospital, and written on the behavioral treatment of ADHD. He also created the Electronic Daily Report Card ( to improve social and academic behaviors at school. To learn more, please visit


Anna Christodoulou, PsyD – Assistant Director (9-12 Group)

Dr. Christodoulou is a New York State licensed school psychologist and currently the School Psychologist for a private school in Manhattan. She has worked as a school psychologist in a variety of school settings (London, Athens and New York) with children of all ages and diverse backgrounds, as well as parents, teachers, and other professionals. Dr. Christodoulou has training and experience with solution-focused brief therapy (SFBT) and Cognitive Behavioral Therapy (CBT).


Carly Kisberg, LMSW – Assistant Director (5-6 Group)

Carly Kisberg is a licensed social worker and behavioral therapist with expertise in applied behavior analysis (ABA). She provides school consultation and eDRC management, behavior therapy, ABA, executive function training, and social skills training for children with ASD, speech and language disorders, ADHD and anxiety. Carly earned her Bachelor of Science in Communication Disorders at the University of Massachusetts at Amherst, Master of Social Work at Hunter College, and Advanced Certificate in Applied Behavior Analysis at Hunter College School of Education.


Erika Stapert, PsyD – Assistant Director (4’s Group)

Dr. Stapert is a New York State licensed psychologist who received her B.A. in Psychology from the University of Michigan and went on to earn her doctoral degree in Clinical Psychology from the The Chicago School. Dr. Stapert specializes in the treatment of young children with emotional and behavioral disorders, is trained in Parent-Child Interaction Therapy (PCIT), has extensive experience leading and supervising early childhood socialization groups and has also provided individual, family and group therapy in a variety of settings including Head Start programming, a therapeutic nursery, and other outpatient clinic settings.


Charlotte Dennis, MSEd – Special Education Teacher (7-8 Group)

Charlotte completed her Master’s Degree in Childhood and Special Education from Manhattanville College. She received her Bachelor’s Degree from the School of Education at Boston College. Charlotte currently holds New York State Certifications in Childhood and Special Education for students in grades 1 through 6. After completing her degrees, Charlotte taught and coached in Westchester at a private middle and high school for girls. She then worked at a public elementary school in New York City for five years where she has taught both Self-Contained and ICT classes for students in grades 1 through 5. Charlotte currently teaches at a private school for boys on the upper east side, working with students in grades pre-k through third. Charlotte is knowledgeable in the Common Core State Standards and has taught using many different multi-modal english language arts and math programs. After school, Charlotte tutors students in need of academic support or enrichment as well as to prepare them for the NY State ELA and Math Tests.


Lauren Feiden, PsyD – Assistant Director (7-8 Group)

Dr. Feiden is a New York State licensed psychologist who received her undergraduate degree in Psychology from McGill University, and went on to receive a graduate degree in Clinical Psychology with a specialization in children and adolescents from the Chicago School of Professional Psychology. Dr. Feiden has extensive experience working with children, adolescents, and families with a wide range of emotional and behavioral disorders and providing treatment in a number of different settings including community mental health centers, partial hospitalization programs, and in private practice. Dr Feiden has training and experience in cognitive behavioral therapy, Parent-Child Interaction Therapy (PCIT), play therapy, and parent training.

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Natasha Djuravcevic, MSEd – Special Education Teacher (9-12 Group)

Natasha received her Bachelor’s degree from Iona College and her Master’s degree from Manhattanville College. Natasha currently holds her New York State Certification in both Childhood and Special Education in grades 1-6. She has spent the last four years in a New York City public school co-teaching in an ICT 5th grade class. Working in an ICT class, Natasha specializes in adapting the Common Core Curriculum to the needs of all learners and finds entry points for students with dyslexia, learning disabilities, speech and language delays, students on the ASD spectrum, behavior and emotional impairments as well as those with executive functioning disorder. Natasha’s primary focus is to teach students the appropriate skills and tools they will need to become more independent and successful life-long learners.


Elizabeth Lynch, MSEd – Special Education Teacher (5-6 Group)

Elizabeth received her Bachelor degree from Manhattan College and her Master’s degree from Mercy College. Elizabeth currently holds her New York State Certification in both Childhood and Special Education from birth through twelfth grades. She has spent the last 14 years in New York City public schools co-teaching ICT classes in various grades. Elizabeth has concentrated in Early Childhood development and has developed and executed Common Core aligned lessons in all academic areas. She is proficient in Teacher’s College Reading and Writing Curriculum and Balanced Literacy.

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Cardilla Kantasingh, MSEd – Special Education Teacher (4’s Group)

Coming soon…

Program Staff

Our team of assistant directors, special education teachers, master’s level professionals, graduate students and college counselors have specialized training in ADHD, Autism Spectrum Disorders, Learning Disabilities, and Behavior Management. All staff and counselors participate in a weekly long intensive training the week before camp starts.

We're Hiring for 2016!

Counselors, Chaperons & Alternate Counselors

*View Job Descriptions and then complete our ONLINE APPLICATION

*Must attend one group interview on Sunday, Feb 28th 2-4pm or Sunday, April 3rd 3-5pm, at 82nd/Columbus Ave in Manhattan. 

*Counselors must attend full training 6/27 - 7/1.

*You will need to submit your CV/Resume and two letters of recommendation

*You will need to provide medical clearance from a physician before starting work.

*No calls please

*All job inquiries - Jobs (at) bigappledayprogram (dot) com