6000 Shakerag Hill
Suite 216
Peachtree City, GA 30269






 Normal Hours:

Monday & Tuesday



About Us

Alfonso Martinez, Ph.D., ABPP

Photo of Dr. Martinez, neuropsychologist

Dr. Martinez graduated with his doctorate in clinical psychology from Purdue University in 1997. He completed his internship at the University of Chicago Medical Center. He then completed two years of neuropsychology fellowship at the University of Miami Medical Center, one year with adults in the Neurology Department and the other year with children in the Department of Pediatrics. He practiced neuropsychology for eight years in southwest Florida, and moved to Georgia in 2007. Dr. Martinez is one of just a handful of board-certified (ABPP-CN) neuropsychologists in the state.

Dr. Martinez is dedicated to thoroughly examining his patients using the most advanced neuropsychological techniques and tests in order to provide accurate diagnosis and, more importantly, to provide recommendations that will improve their quality of life.



  • Memory/Cognitive assessment
  • Alzheimer’s and other dementias
  • Traumatic brain injury
  • Independent medical examinations
  • Competency evaluations
  • NFL concussion evaluations
  • FAA mandated evaluations (including CogScreen-AE)
  • College accommodations


  • ADHD
  • Dyslexia
  • Other Learning Disabilities
  • Academic problems

Margaret (Peggy) and Thomas (Tom) McBrayer

Photo of Peggy and Tom McBrayer, therapists

Peggy and Tom are licensed therapists who have been married 40 years and conduct couple’s therapy as a husband-wife team. They are trained in Emotionally Focused Therapy and work collaboratively with couples experiencing distress and disconnection in their relationships to rebuild and strengthen emotional bonds. They believe that strong marriages are the foundation for healthy families and that marriage is worth fighting for. They are committed to helping couples preserve, enhance, and restore their relationships. Their individual information is listed below.

◊  Margaret (Peggy) McBrayer, ACSW, LCSW, LPC

Peggy holds a Masters of Social Work degree from the University of Georgia. She has over 37 years of clinical and managerial experience in social service, criminal justice, and clinical settings. During her career, Peggy has worked with children, adolescents, and adults, including seniors.

Her clinical experience has included working with clients experiencing marriage and family issues, mental illness, physical and mental handicaps, survivors of trauma and abuse, and clients dealing with grief and loss. In addition to individual psychotherapy, Peggy has developed and led therapeutic programs/groups for mentally ill clients, victims of domestic violence, and sex offenders.

◊  Thomas C. McBrayer Jr., LPC

Tom graduated with a Master’s degree in Counseling from Georgia State University in 1976. He retired from the State of Georgia in 2005 with 34 years of service with the Department of Corrections and the Board of Pardons and Paroles. During his career, Tom supervised probationers and parolees, prepared psychological evaluations, conducted mental health assessments and counseled inmates prior to their return to the community.

Tom has maintained an active license in the State of Georgia as a Licensed Professional Counselor since 1987. In addition to offering marriage / couple’s therapy with his wife, Tom also specializes in grief / bereavement counseling, care-giver issues, and life transitions.



  • Marriage/Couple’s Therapy
  • Grief / Loss
  • PTSD
  • Trauma / Abuse
  • Relational Problems
  • Anxiety / Depression
  • Care-giver Issues
  • Life Transitions


  • Marriage/Couple’s Therapy
  • Bereavement
  • Anxiety / Depression
  • Care-giver Issues
  • Life Transitions

Abigail D. Abel, LPC

Photo of Abigail Abel, therapist

Abigail holds a Specialist Degree in Professional Counseling and Supervision from the University of West Georgia. In 2014, she retired from the Fayette County School System after 32 total years of service and began her career as a licensed professional counselor. During her career, Abigail has worked with children, adolescents and adults.

Her school and clinical experience has included working with clients experiencing depression, anxiety, low self-esteem, trauma and abuse, eating disorders, relationship and family issues. In addition to individual psychotherapy, Abigail has developed and worked with therapeutic groups to include social skills, study skills, anger management, time management, children of divorce and parenting.


  • Anxiety/Depression
  • Self-Esteem
  • Trauma/Abuse
  • Parenting/Behavioral Issues- STEP (Systematic Training for Effective Parenting)
  • Marriage/Couples- Gottman Method
  • ADHD
  • Academic Underachievement

Sandy Kumro, Psychometrist

Photo of Sandy Kumro, psychometrist

Sandy graduated magna cum laude from the School of Management at the State University of New York at Buffalo with a Bachelor of Science degree in Business Administration.

Sandy has been with The Neuropsychology Center since 2011. She is responsible for administering and scoring standardized psychological test batteries, and assisting Dr. Martinez with neuropsychological, cognitive, academic, and behavioral evaluations.

Sandy lives in Peachtree City with her husband and two sons. She enjoys reading, traveling, and cheering on the Atlanta Braves and the Georgia Bulldogs.

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