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Staff Bio's

Lyn Peyton, PhD



Dr. Lyn received her PhD from Walden University in Clinical Psychology and received her Master’s degree in Humanistic and Clinical Psychology from Michigan School of Professional Psychology. She has over 25 years’ experience in clinical and neuropsychology.  Over her years of experience, she has developed an expertise in the diagnosis and treatment of neurological based disorders, i.e. Traumatic Brain Injury, Attention Deficit Hyperactivity Disorder, Development Delays, Learning Disorders, etc. Her research experience includes the completion of her Dissertation on the impact of psychostimulant medication on the perception of time for individuals with ADHD.

Her clinical interests include neuropsychology and working with individuals diagnosed with various disorders, i.e. Traumatic Brain Injury, ADHD, Depressive Disorders, Bipolar Disorder, Anxiety Disorder, Posttraumatic Stress Disorder, Anger Management, Behavioral Disorders, etc. She provides Psychological and Neuropsychological evaluations and works with all age groups, i.e. children, adolescents, adults, and seniors.

Dr. Lyn is fully licensed psychologist in the State of Michigan and is a member of the American Psychological Association, Division 40, Society for Clinical Neuropsychology, and the American Psychological Association. In addition, she is a member of the National Academy of Neuropsychology.

Sharon Nassau, PhD



Dr. Nassau received her Master’s and PhD from Wayne State University.  She has 29 years of experience in Clinical and Neuropsychology.  She has sub-specialty training in Geriatrics, Infertility, Chronic Illness, Traumatic Brain Injury and Progressive Neurological diseases.  Research interests have been in the area of self-fulfilling prophecy effects, speed of visual processing, and treatment of psychological issues in the medical setting.  She has taught undergraduate and graduate courses in various areas of psychology at Wayne State University and University of Michigan-Flint.

Her clinical interests include neuropsychology and working with individuals diagnosed with various disorders, i.e. Traumatic Brain Injury, adult ADHD, Depressive Disorders, Bipolar Disorder, Anxiety Disorder, Chronic Illness, and other neurological conditions.  She provides Psychological and Neuropsychological evaluations and works with adults and seniors.

Dr. Nassau is a fully licensed psychologist in the State of Michigan and is a member of the American Psychological Association, Division 40, Society for Clinical Neuropsychology, and the American Psychological Association. In addition, she is a member of the National Academy of Neuropsychology.

Bethany Hall, Psychologist


In practice, I work with children and adults on the autism spectrum, as well as ADHD, depression, anxiety, learning disorders, developmental disorders, ODD and co-occurring medical disorders. I focus on skill acquisition and reduction of maladaptive behaviors and unwanted private events.

My unique combination of skills allows me to combine behavioral principals with humanistic psychology for an individualized, research-based treatment. In other words, I will work with you to identify specific symptoms or behaviors that you would like to eliminate and help you develop a plan to reduce the severity or occurrence of those symptoms or behaviors.

I would love to help you and your family improve the quality of your lives.

Specialties: Autism, Behavioral Issues & ADHD

Issues: Adoption, Anger Management, Anxiety, Asperger’s Syndrome, Career Counseling, Chronic Illness, Chronic Pain, Coping Skills, Depression, Developmental Disorders, Dual Diagnosis, Family Conflict, Grief, Intellectual Disability, Learning Disabilities, Life Transitions, Obsessive-Compulsive (OCD), Oppositional Defiance, Parenting, Peer Relationships, School Issues, Self Esteem, Stress, Trauma and PTSD, Weight Loss, Women’s Issues

Kim Bindus, MA, LLP

Master’s Level Psychologist


I have over 20 years of experience in the field of mental health and I have learned over the years that my clients are often my greatest teachers. I believe in meeting people where they are and working with them to create a treatment plan that is suited to their individual needs.

I completed a Master’s degree in Clinical Psychology at Madonna University in 2010. I have also completed training and certification in a variety of treatment methods including: psychodynamic psychotherapy, attachment therapy, cognitive behavioral therapy, dialectical behavior therapy and emotionally focused couple’s therapy.

Ultimately my goal as a therapist is to offer compassionate, supportive treatment that provides my clients with increased self-awareness as well as practical strategies they can use to promote healing in their own life.

We are all unique individuals and there is no one size fits all type of therapy.  However, what often matters most for people seeking treatment, is having a therapist who offers them hope that if they do the work, they will recover.

It is my privilege and mission to support my clients on their personal journey toward healing. Whether your goals include overcoming a few daily challenges or taking the first steps toward healing severe emotional pain, my goal is to be there supporting you every step of the way.


Mackenzie Mercer, MA, LLP

Master’s Level Psychologist

I am Mackenzie Mercer and I have been practicing psychotherapy since 2017 with children, adolescents and adults. I received my bachelor’s degree in Psychology from Alma College in 2014 and my Master’s Degree in Counseling Psychology from Western Michigan University. My professional commitment is to provide insight, compassionate support, and the tools to help you navigate through difficult times. I do this to help children, adolescents and adults create the lives they want. Every child, adolescent, and adult deserve an incredible life, but there are times that test our ability to live the life we want. Together, we can get you back on the path to success. As a team, we identify the symptoms you would like to see changed or patterns you would like to see shifted. Then, we engage in the work of therapy to support this change and end the suffering using the tools acquired in each session. I work with children, adolescents and adults of all cultural backgrounds and sexual orientations. Through our work together, we can find solutions to address the struggles that you experience. I look forward to walking alongside you as you take this next step in your life journey!




Erica Benfield, BS



Erica received her Bachelor’s degree in Applied Psychology from the University of Michigan-Flint. Her undergraduate internship was completed at Peyton and Davenport, observing treatment and testing with adults presenting with Traumatic Brain Injury, mood disorders, and other diagnoses. Other clinical experience includes working with individuals diagnosed with mild to severe Traumatic Brain Injury at an Ann Arbor clinic, and working with adults and children with mild to moderate Autism Spectrum disorder. Her research experience includes working with faculty at UM-Flint examining addiction and excessive cell phone use, developing alternative exercise treatments for individuals with Parkinson’s disease, and Metro-Detroit psychiatrists examining the relationship between brain chemicals (neurotransmitters) and reported symptoms.

Erica is currently attending graduate school at the University of Detroit-Mercy for a PhD in Clinical Psychology. She works at Peyton and Davenport with adults and adolescents conducting neuropsychological assessments.

Anita Triplett

Office Manager


Anita is the office manager at the BRAIN Center of Michigan. She has five years of experience working in office settings with responsibilities under the titles as a registration clerk in advanced accounts payable and switchboard operator in a hospital setting. She also has years of experience in several other office settings. Anita has been working at the BRAIN Center for over two years, starting as administrative assistant working up to her current title of the office manager. Anita completed coursework in Medical Transcription and Billing and is contemplating returning to complete an advanced degree. She grew up in northern Michigan and transplanted to southern Michigan in 2006. She has been married for 30 years and has four beautiful children. It is Anita’s caring and compassionate demeanor for each person that walks through our doors that makes her a perfect fit for the BRAIN Center. At the BRAIN Center of Michigan, she is in charge of all administrative and front desk duties. This includes patient intakes, setting appointments, insurance benefits and authorization, claims rejections/resubmissions, electronic records, and all other patient services. Stop in and say hi to Anita, you will be greeted with a smile.

Jonathan Shook, PhD


Dr. Jonathan Shook received his Master’s and PhD in Clinical Psychology from Nova Southeastern University in Ft. Lauderdale, Florida. He has training in forensic psychological practices, with research interests in the intersection between legal issues and mental health. His training within juvenile and adult detention centers, psychiatric hospitals, and outpatient treatment settings has provided him the flexibility to deliver effective treatment to individuals with differing mental health needs. He also maintains an active interest in psychological evaluation for both civil and forensic populations.

Dr. Shook is a fully licensed psychologist in the state of Michigan. He began practicing psychotherapy in 2014 and has had the opportunity to work with adolescents and adults from a variety of backgrounds and cultures. He has experience in cognitive behavioral and integrative approaches to psychotherapy and utilizes a collaborative approach to help individuals find balance and make healthy changes in their lives.

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