Our Staff

The Supervisors and Staff Coordinators at Helping Hands ABA are not just Practitioners. Our Head BCBAs are Pioneers in the world of Autism treatment.

Chana Tilson

Executive Director

Chana has served as the Program Director of the Hand in Hand Early Childhood Center for the past ten years. She has vast expertise with children and adults with Autism and significant behavioral challenges. To address unmet needs identified by many families, Chana developed and runs Helping Hands ABA P.C. She is currently working on her dissertation on the effectiveness of Acceptance and Commitment Therapy on decreasing parental stress levels and increasing parents abilities to manage their children’s behaviors.

At Helping Hands ABA, We’ve made sure that all our staff have a background in ABA. Every staff member, from our Billing department, to our Marketing team, has worked with individuals with Autism at one point in their careers.

Sadaf Khawar

Clinical Supervisor

Sadaf Khawar holds a Bachelor of Science Degree in Psychology from University of Houston, a Master of Arts Degree in Clinical Psychology from University of Houston-Clear Lake, along with a coursework in Applied Behavior Analysis from Florida Institute of Technology. She is a Board Certified Behavior Analyst and a New York State Licensed Behavior Analyst since 2015. Currently, Sadaf is pursuing a PhD. in the Clinical Psychology program at the Department of Psychology, Montclair State University, Montclair, New Jersey.

Sadaf has worked with children with developmental disabilities for the past decade in Texas, Ohio and the Tri-State Area. Her areas of expertise include:

  • Parent Training & Parent Wellness
  • Staff Training
  • Social Skills Groups
  • Assessments & Treatment Planning
  • Home, Center-Based & School
  • Consultation
  • Supervision
  • Research

Odalis Hernandez


Odalis Hernandez is a Board-Certified Behavior Analyst and a New York State Licensed Behavior Analyst. She has her Master’s in Applied Behavior Analysis from Queens College where she began her professional career. She has been working with children diagnosed with Autism for over 5 years. She has worked directly with clients in both the clinical and home settings and has transitioned to a supervisory position working closely with Behavior Technicians and Families on how to effectively implement ABA strategies. Odalis’ research interests include:

  • Vocal stereotypy 
  • Motor stereotypy 
  • Eating desensitization
  • Parent training 
  • Social significance of skills across children’s ages and cultural backgrounds 

Grecia Gaviria 

Grecia is a clinical supervisor with over eight years of experience working within different home, educational and clinical settings. She holds a Bachelor of Science in Communication Sciences and Disorders and Master of Science in Psychology with a focus in Applied Behavior Analysis. Her most recent roles include supporting and training service providers to understand evidence-based practice while approaching the learner, the family, and the community from a strength-based model. Grecia integrates cultural awareness practices into service delivery, supervision, and professional development, staying sensitive to each learner’s support level needs.  She strives to create an emotionally safe learning environment for all types of learners.
Grecia is currently pursuing a Ph.D. in Applied Behavior Analysis.

Jesse Mazen

Outreach Coordinator
SpEd Teacher

Jesse Mazen is a New York State Licensed Special Education Teacher. He holds a Bachelors of the Arts degree in Special Education with an Adaptive Curriculum Concentration from the University of North Carolina Wilmington. He began his career in the field of special education in high school as a teaching assistant for his brother’s special education classroom. Since then, he has continued to work and grow in this field working as a direct support provider and a behavior technician. Aside from Jesse’s personal experience with his brother, who has a diagnosis of autism, he has over 5 years of experience working with children and adults with developmental disabilities.

Shui Fier

Marketing Strategist
ABA Instructor

Shui is a Brilliant and Resourceful member of the Helping Hands ABA team. He holds a Bachelors of the Arts degree in Psychology and has a background in Film and Advertising.
He began working in the field of special education in high school. Shui has worked for numerous organizations, helping to improve the lives of individuals with Autism. From leading a division of a special needs camp, to coordinating integrated summer traveling programs for individuals on the Autism spectrum, Shui he has over 5 years of experience working with children and adults with developmental disabilities.

Adina Tilson

ABA instructor

Adina is the HR specialist of the Helping Hands ABA team. She is responsible for onboarding staff and upholding quality assurance. Born and bred in Australia, Adina’s experience working with children with special needs began at a young age. She was an active volunteer at The Friendship Circle of Melbourne, an organization which serves to provide friendship and support to individuals with special needs. When she moved to the States, Adina served as the Friendship Circle’s full-time program director for their San Diego branch. Adina is working toward her Masters degree in Applied Behavior Analysis.

Kimberly Torres

Advocacy Coordinator

Kimberly Torres holds a Bachelor of Science Degree in Social Work from Fordham University and a Master of Social Work Degree in Clinical Social Work from Columbia University. Kimberly has a background in using Trauma-Informed Client Centered Social Work Skills with Children, Older Adults and Families. She is responsible for upholding Family and Staff support and quality assurance. She is also responsible for creating community connections and providing resources for our families and staff. Kimberly’s experience with neurodiverse children began at home. Her brother was a client of Helping Hands ABA. Kimberly is pursuing her License in Social Work in New York. She is compassionate, caring, and ready to provide for our families.