Board Certification

  • Pediatrics

Area of Expertise

  • Attention Deficit Hyperactivity Disorder

New Patient Status

Accepting all New Patients


Internship and Residency

Tulane University School of Medicine
New Orleans, LA
1998 – 2001

Medical School

Medical College of Pennsylvania
Doctor of Medicine
Philadelphia, PA

Undergraduate School

University of Delaware
Bachelor of Science in Animal Science, Minor in Biology
Cum Laude, Dean Scholar
Newark, DE

Hospitals Affiliated With

Baylor Medical Center at Frisco
Baylor Cenntenial Frisco
THR Hospital of Frisco
Medical City Frisco
THR (Presbyterian) Hospital of Plano

Professional Associations

American Academy of Pediatrics (AAP)

American Board of Pediatrics (ABP)

Texas Medical Association (TMA)

Academic Appointments

George Washington University
Associate Clinical Professor of Health Care Sciences for Physician Assistant Program
2002 – 2005

John E. Dohms Ph.D. Department of Animal Science, University of Delaware
Undergraduate Teaching Assistant for Infection & Immunity Course
Fall 1992

John E. Dohms Ph.D. Department of Animal Science, University of Delaware
Undergraduate Research Assistant
1991 – 1992


Drs. McGonnell and Liu with their family

Dr. McGonnell has dedicated the practice of medicine to the care of infants, children, and adolescents. He is board certified in Pediatrics and a fellow of the American Academy of Pediatrics. He is also a member of the Texas Medical Association and Dallas Medical Society. He takes a special interest in the treatment of Attention Deficit Hyperactivity Disorder as well as behavior management.

Dr. McGonnell completed his Pediatric Internship and Residency at Tulane University in New Orleans, Louisiana. He attended medical school at Medical College of Pennsylvania in Philadelphia, Pennsylvania and undergraduate studies at the University of Delaware. He practiced for 5 years in Northern Virginia prior to joining Forest Lane Pediatrics in 2006. Dr. McGonnell has been recognized as a Mom Approved Doctor by DFW Child Magazine in 2017.

His wife Dr. Ann Liu is also a pediatrician with Forest Lane Pediatrics. They are proud parents to Paige and Liam. The family enjoys outdoor activities including 5K runs, walking their dogs, and hiking.

Parent Testimonials

“I love this clinic, all three of my kids go to Dr. McGonnell. He is incredibly patient and kind and he takes time to answer any and all questions and provides helpful advice when needed. The nurses are all friendly as well! The place is very clean. There are two locations, this one in Plano and the other in Dallas, both located in hospitals and equally nice. I like that when I had to bring my kids in for a sick visit, they were taken in immediately. They were seen by another doctor who was just as nice which is reassuring for moments like those. Great place!”
– Kassandra A.

“I have twin boys and we have been seeing Dr. McGonnell since they we’re born. We love him!! He is always on time and has great bedside manner, my boys look forward to their Dr appointments!!”
– Tiffany T.

“We LOVE Dr. McGonnell! He has such a great bedside manner and my kids love him! He always takes the time to answer all questions and just overall a great doctor!”
– N. Rayburn