About Us

At Oakbrook Pediatrics, our board-certified physicians and friendly staff strive to provide excellence in healthcare delivery while treating every patient with compassion and respect. Communication is one of the most important aspects of the doctor/patient relationship, and we excel at ensuring every concern is addressed with care and attention. New patients are always welcomed, and existing patient referrals are appreciated. We also take comments and evaluations very seriously so that we can give you the best pediatric care in Downers Grove.

Dr. Khan

Named a 2017 Top Doctor of Merrillville, Indiana by the International Association of Pediatricians, Dr. Khan is the new Medical Director of A2Z Pediatrics. She is a Board-certified pediatrician and recently relocated to her practice in Bolingbrook from Northwest Indiana. A fellow of the American Board of Pediatrics, Dr. Khan is also affiliated with the Adventist Hinsdale-Bolingbrook Hospitals, Edward-Elmhurst of Naperville and Advocate Good Samaritan Hospital of Downers Grove.

Dr. Coufal


In light of Dr. Coufal’s retirement, she would like to introduce everyone to Dr. Talat Khan. She will continue to operate a medical practice in the same location with the same specialties and concentrations as Dr. Coufal, as well as in her established second location in Bolingbrook. Many of you already know Dr. Khan, as she has assisted Dr. Coufal with her practice over the last several months. She is a highly qualified pediatrician who is dedicated to ensuring your child receives the best care in Downers Grove.

Dr. Calma

Dr. Michelle Calma, MD is a Pediatrics Specialist in Orland Park, IL and is affiliated with Advocate Christ Medical Center, Palos Health and Saint Anthony Hospital. Dr. Calma graduated from the Ross University School of Medicine in 2006 and she has been in practice between 11-20 years. She specializes in Internal Medicine/Pediatrics, Pediatrics, Immunization, Vaccination, Pediatric Diabetes, Physical and Check-up.