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Welcome to Our Practice

Welcome to Hahn Pediatric Group, Your Pediatrician in Tinley Park, Illinois

Welcome to the Hahn Pediatric Group website. We provide comprehensive pediatric care for our patients and families. Our office is located in the Advocate Medical Campus Southwest in Tinley Park. A physician is available Monday through Saturday for both well and sick appointments. After hours we can be reached for urgent matters by phoning 708-478-7800 and our answering service will direct the call to the physician on duty. Our nurses and support staff our dedicated to providing you with the highest quality of courteous and prompt service.


This website is for informational purposes only. The information on this website is subject to change without notice. The external links that are provided are for the user’s convenience and Hahn Pediatric Group is not responsible for their content. This website is not a substitute for an assessment by a physician or any other health professional. All rights and permissions are reserved

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Meet Our Doctors

  • Dr.
    Gene Denning D.O., F.A.A.P.


    5/1993 University of Illinois at Chicago B.S. in Biological Science
    5/1998 Midwestern University Chicago College of Osteopathic Medicine Doctor of Osteopathic Medicine
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  • Dr.
    Holly E. Russell, M.D., F.A.A.P.


    July 2005 to June 2008 Pediatric Residency Saint Louis University School of Medicine
    August 2001 to May 2005 Doctor of Medicine Southern Illinois University School of Medicine
    August 1997 to May 2001 Bachelor of Arts in Biology Westminster College
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Our Location

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Physician Hours

Our Regular Schedule

Hahn Pediatric Group


8:30 AM-7:00 PM


8:30 AM-7:00 PM


8:30 AM-5:00 PM


8:30 AM-5:00 PM


10:00 AM-5:00 PM


9:00 am-12:00 pm




  • "Coming Soon"