Our Team

 
 
 
 

LICENSED PSYCHOLOGIST

Avital K. Cohen, Psy.D.

Dr. Cohen is a licensed psychologist in Georgia and Alabama. Her passion for working with children, adolescents, and their families started at a young age and progressed throughout her life experiences working with children and adults with developmental disabilities. She received her doctorate from the Georgia School of Professional Psychology and completed her internship at Brooke Army Medical Center. During her subsequent military service in the United States Army, Dr. Cohen supported soldiers and their families through their needs at home and overseas. She deployed to Iraq and earned a Bronze Star for her service during her deployment. Currently, her clinical focus is on the assessment of Autism Spectrum Disorder (ASD), as well as other common problems in the pediatric population, including developmental delays, learning problems, Attention-Deficit/Hyperactivity Disorder (ADHD), emotional disorders, behavioral issues, and more. Dr. Cohen is also passionate about identifying gifted students, as well as determining supportive services for individuals who are twice exceptional. While she does not offer therapy services, she provides a variety of treatment planning/care coordination services. In addition to her work with children and families, she also specializes in assessment and treatment planning services for autistic adults and adults with other developmental differences. Her work with the Georgia Autism Assessment Collaborative (GAAC) through Emory Autism Services further supports and enriches her work related to ASD.

Dr. Cohen’s work with individuals with developmental disabilities has made her passionate about supporting families applying for or renewing their Katie Beckett Deeming Waiver and NOW/COMP waiver services. She understands the short time frames in which these evaluations often must be completed.

Dr. Asher Lindenbaum

Licensed Psychologist

Asher Lindenbaum, Psy.D.

Dr. Lindenbaum is a licensed psychologist in the state of Georgia. He completed his doctoral training at William James College with a concentration in Child and Families of Adversity and Resilience. He has worked with patients in a variety of clinical settings including therapeutic high schools, outpatient mental health settings, residential care, children's hospitals, and Applied Behavior Analysis (ABA) clinics. He completed his doctoral internship at Franciscan Children's Hospital in Brighton, Massachusetts, and moved to Atlanta with his family to complete his postdoctoral fellowship at Peachtree Pediatric Psychology. Dr. Lindenbaum has conducted research developing early screening tools for ASD, and his dissertation focused on teenagers with ASD and their understanding of emotions in cartoons. He specializes in early diagnosis and treatment of Autism Spectrum Disorder (ASD) in young children, and in the development of mental health disorders in children and teenagers. He is passionate about creating a comfortable, warm environment in which patients and their family members can fully share their perspective in order to create an enriching testing experience that can lead to successful and suitable interventions. 

Licensed Psychologist

Joonsung Kim, Ph.D.

Dr. Kim is a licensed psychologist at Peachtree Pediatric Psychology. He has worked in public school systems, hospitals, and private clinics in rural and urban areas. He combines his various experiences with training in applied behavior analysis to help clients find their strengths and weaknesses. He received his doctorate and masters in Educational Psychology with a focus in School Psychology from the University of Georgia. He graduated from the University of Notre Dame with a Bachelor of Arts in psychology. His interests include afterschool programs, applied behavior analysis, and Autism Spectrum Disorder (ASD).   

 
 

Patient Care Coordinator & Billing

Shaneque Metellus

Meet Shaneque or better known as Ms. Shaneque by our parents and patients. She is a proud mother of two, PTA Mom, Boy Scout Mom, Girl Scout Mom, and advocate. Shaneque started working for Dr. Cohen back in 2017 and loves what she does as our Patient Care Coordinator. 

Shaneque has compassion and understanding for our families, because she lives it everyday with her daughter and is proud to share with families that she is a mom with a daughter with Autism. She understands the process and frustration families feel when they don't get an evaluation by someone who understands what they are looking for. She also knows from personal experience how much time it takes to complete the history form and all the consents, attend multiple appointments, and wait for the results. She will also let you know it was well worth the investment, as testing was able to give her a detailed report of why and how her daughter is who she is. She is a thriving 7th grader on the A/B honor roll. Shaneque shares her story with you for you to know that Peachtree Pediatric Psychology has employees who care and can relate to what you are going through.  

Shaneque is a proud Autism Mom who will take the time to listen and help through the process.  Give us a call and ask for Ms. Shaneque!

 
 
 
 

Senior Psychometrist

Laura Tilton, M.S.

Laura obtained her Bachelor’s Degree in Psychology from Armstrong Atlantic State University (currently Georgia Southern University), followed by a Master’s Degree in Clinical Psychology from Augusta University in 2016. Working with children has always been a passion of hers. She enjoys conducting psychological assessments in order to assist families with best supporting their children. Outside of work, she enjoys crafting and going on walks with her husband, daughter, and their new baby boy.   

 
 
 
Angela

School Psychologist

Angela Sneed MS, SSP, NCSP

Angela is originally from southern Florida and completed her Bachelor’s degree in Psychology from Stetson University. She earned her Master’s and Specialist in School Psychology degrees from Winthrop University in Rock Hill, SC.  

Prior to joining the P3 team in 2021, Angela spent 8 years working as a School Psychologist in public school districts in South Carolina and Georgia. She has extensive experience in conducting psychoeducational evaluations, and collaborating with school-based teams as they make decisions regarding special education eligibility. Some of her interest areas include language-based learning disabilities, nonverbal learning disabilities, autism spectrum disorders, and visual impairments. She enjoys working with students to search for an explanation for their challenges.  

Angela holds the distinguished credential of Nationally Certified School Psychologist (NCSP #43384). As such, she is committed to the highest standards of ethics and professional practices. She participates in ongoing continuing education to maintain this credential, and to stay current with best practices and new developments within the field.  

Outside of work, Angela enjoys spending time with her husband and daughter.  

 
 

Psychometrist

KaShara Lamar-Pearson, M.S.

KaShara is a Georgia native. She graduated from Berry College with her Bachelor’s in psychology and biology. Following her undergraduate training, she continued her studies in Virginia at Capella University and worked as a behavior specialist for children with autism. Working with children has always been a passion of hers. In 2021, she earned her Master’s of Science in psychology, specializing in child and adolescent development. She recently moved back to Georgia and joined the P3 team as a psychometrist.

In her free time, she enjoys spending time with her husband, 6-month-old daughter, and 5 fur babies. She also enjoys exploring new coffee shops and watching Netflix.

 

Diagnostic practicum Student

Eric Chen Liu, B.S.

Eric is originally from California and received his Bachelor's of Science in Cognitive Science from the University of California, Santa Cruz. He is currently a doctoral student at Mercer University pursuing his Doctor of Psychology in Clinical Psychology. He is interested in working with children and adolescents and would love to continue this work in the future.

In his free time, he loves to read, go on long runs, and enjoy the outdoors. 

 
 

Diagnostic Practicum Student

Carly Mashman, B.A.

Carly is from Atlanta, Georgia and has lived here her whole life. She received her Bachelor’s of Arts in Psychology from Emory University. She is currently a doctoral student at Mercer University in the Clinical Psychology department. She enjoys working with children and adolescents and hopes work with this population throughout her career.

Outside of the clinic and school, Carly enjoys riding horses, playing pickleball, and taking kickboxing classes.

 
 

Diagnostic Practicum Student

Marin Shaw, B.S.

Marin is originally from Atlanta, Georgia, and received her Bachelor's of Science in Psychology and Spanish from Florida State University. She is currently a doctoral student at Mercer University pursuing her Doctor of Psychology in Clinical Psychology. She is interested in working with children and adolescents with autism and would love to continue to work with this population in the future.

In her free time, she loves to read, do puzzles, and play with her cat, Cowboy.

 
 

Medical RECEPTIONIST

Marilyn Zinns

Marilyn joined the team at P3 after moving to Georgia from New York.

 
 

Medical Receptionist

Angela Tarah

Angela is a native of Trinidad and Tobago and takes her sunny disposition with her wherever she goes.  Prior to moving to Georgia in 2020, she lived in Vancouver, British Columbia and Seattle, WA. She has over 30 years of experience in healthcare in management positions and as a consultant, having earned a Masters Degree in Health Care Administration. The plan in moving to GA was to retire, but Angela found that she missed her interactions with patients and family. She joined Peachtree Pediatric Psychology in November 2023 and enjoys her role as a Medical Receptionist.

Outside of work, Angela enjoys the outdoors – gardening and long walks.