Our Staff

Dr. Thomas L. DiMatteo, M.D., Child, Adolescent & Adult Psychiatrist

Dr. Andrea N. Uribe, D.O., Child & Adolescent Psychiatrist

Dr. Margaret Byrnes, Ph.D., Licensed Clinical Psychologist

Bonnie Knox, M.Ed., L.C.P.C., C.A.D.C.

Phil Martinez, L.C.P.C.

Kary Pekarek, L.C.S.W.

Dr. Thomas L. DiMatteo, M.D., Child, Adolescent & Adult Psychiatrist

Diplomate, American Board of Psychiatry and Neurology

Dr. Tom DiMatteo received a Doctorate of Pharmacy degree from the University of Arizona returning there to attend medical school. He trained in General Psychiatry at the University of New Mexico, and Child and Adolescent Psychiatry at the University of Chicago. Dr DiMatteo treats children, adolescents and adults. He is board certified in Child, Adolescent and Adult (general) Psychiatry. Dr. DiMatteo's treatment interests include anxiety and mood disorders, ADHD, oppositional disorders, autism, Asperger's disorder, and trauma spectrum illnesses.

Dr. DiMatteo employs tailored medication interventions as they are indicated, and in collaboration with his clients and their other care providers. He attempts to integrate his sessions with family involvement, and often works in cognitive and behavioral recommendations that complement and support any therapy his clients receive. He has interests in forgiveness as it applies to therapeutic process, and in multiple facets of integration. These include integration of various domains of the person, as well as integration of the person with his or her community.

Dr. Andrea N. Uribe, D.O., Child & Adolescent Psychiatrist

Dr. Uribe is a caring, compassionate and outgoing psychiatrist. She particularly enjoys working with young patients (ages 4 - 40) and their families. Dr. Uribe's clinical areas of expertise include: ADHD, Anxiety Disorders, Depression, Bipolar Disorder, Autism Spectrum/Asperger's, Obsessive Compulsive Disorder, Eating Disorders, behavioral problems, and family relationships. She is comfortable treating a wide range of issues affecting children and teenagers. She also enjoys treating women's health issues including prenatal and post-partum mood disorders and premenstrual dysphoric disorder (PMDD).

Dr. Uribe grew up in the suburbs of Chicago. She completed her medical degree in 2002 at Western University of Health Sciences in Pomona, California. She went on to pursue training in general adult Psychiatry at Allegheny General Hospital in Pittsburgh, Pennsylvania. Her subspecialty training in Child and Adolescent Psychiatry was completed at Northwestern University's Children's Memorial Hospital (now Lurie Children's Hospital of Chicago). She is board certified in Child, Adolescent, and Adult Psychiatry by the American Board of Psychiatry and Neurology. She has been in private practice since 2007.

Dr. Uribe is married and the mother of two sons. She appreciates the struggles parents go through in raising their children and is committed to helping children and families succeed.

Dr. Margaret Byrnes, Ph.D., Licensed Clinical Psychologist

Margaret, PhD, has been providing psychological services for over 20 years. She obtained her doctorate in clinical psychology from DePaul University with a specialty in child psychology. She sees individuals of all ages, providing individual, couples, and family therapy as well as psychological testing. 

She has worked extensively with inattention and academic difficulties, learning disorders, social problems and Asperger's, anger management, behavioral difficulties, parent skills training, anxiety, depression, grief and loss, and divorce. Areas of subspecialty include giftedness and chronic illness.

Margaret believes in resiliency and helps clients identify and utilize their strengths. She integrates a number of therapeutic perspectives and works with clients to collaboratively develop individualized treatment approaches. When not working, parenting her children, or caring for the various family pets, Margaret enjoys reading, watching movies, building her iTunes library, taking walks, and biking.

Bonnie Knox, M.Ed., L.C.P.C., C.A.D.C.

Bonnie, M.Ed., LCPC, CADC is a licensed clinical professional counselor who completed graduate training at DePaul University in Chicago and is also a certified alcohol and drug counselor. 

Bonnie has extensive experience working with adults, adolescents and their families, treating a wide variety of personal and interpersonal problems such as depression, anxiety, family issues, self-injury, eating disorders and substance abuse. Bonnie is trained and experienced in EMDR (eye movement, desensitization and reprocessing) therapy, as needed, which aids in dealing with post-traumatic stress syndrome, anxiety, grief/loss, and other concerns. Treatment modalities include individual, family and group therapy. 

Bonnie is a member of the American Counseling Association.

Phil Martinez, L.C.P.C.

Phil is a Licensed Clinical Professional Counselor who received his bachelor's degree in Applied Psychology from the University of Illinois at Chicago and his master's degree in Clinical Psychology from Wheaton College. He has spent the past twenty years working in a variety of clinical settings, including working with the homeless, inner-city families and adolescents in Chicago and Gary, IN, and both inpatient and outpatient settings in the city and suburbs. For the past twelve years he has focused his work in the western suburbs with office locations in Wheaton, Naperville, and currently in Lisle.

He specializes in working with adults, adolescents, and their families. While he is comfortable working with clients of a wide age spectrum he has a special knack for connecting with teens, especially those who are considered hard-to-handle, have been to multiple therapists, and in and out of various juvenile settings. He has a unique talent for assisting teens in addressing the issues they face in today's complicated world. Phil specializes in treating a variety of mood and anxiety related disorders, ADHD, and has extensive experience in treating substance abuse and the issues related to these maladies, he is also very comfortable discussing spiritual issues, as well.

Phil genuinely enjoys getting to know the client's he works with "the better I know someone the more equipped I will be to help them in their time of need." He attempts to bring out the very best in those he works with and understands that not everyone responds to the same treatment so he enjoys incorporating a variety of treatment modalities.

When he is not working Phil is an avid weekend warrior, playing summer league softball, basketball in the winter, and golf whenever time permits. He loves spending time with his family traveling, going to movies, or just hanging out. He is a committed professional and family man who strives to give his very best.

Kary Pekarek, L.C.S.W.

Kary is a Licensed Clinical Social Worker who received her graduate training in social work from The University of Chicago. Kary is also a Certified School Social Worker and has spent the last 12 years working with families at a therapeutic day school for students on the autism spectrum.

Kary treats all age with special experience in working with survivors of abuse and trauma as well as mood and anxiety disorders, grief, personality disorders and general interpersonal/family issues. Kary employs a cognitive-behavioral approach and focuses on the strengths of each individual client.

When Kary is not working, she can be found reading, spending time with her 3 children, husband, extended family and friends. She is also an ordained minister and performs wedding ceremonies.