Medical Director

The Excel Center of Lewisville prides itself on its medical staff, which is uniquely equipped to deal with the issues today’s children and adolescents face.

Medical Director

Louis Costello, MD – Medical Director
Dr. Costello is a graduate of the University of Kentucky College of Medicine. He completed his residency at Parkland Memorial Hospital and a fellowship specializing in child and adolescent psychiatry at Children’s Medical Center in Dallas.

Dr. Costello is certified by the American Board of Psychiatry and Neurology, with a secondary specialty in child and adolescent psychiatry. He is a member of the clinical trials research team here at Millwood Hospital.

When Dr. Costello is not working, he enjoys spending time with his family. Dr. Costello joined the staff of Millwood Hospital in 2000, where he is currently the medical director of the inpatient child/adolescent unit, and the medical director of Excel Lewisville child/adolescent outpatient program.

Bi-lingual Support:

Bi-lingual administrative support is provided through Excel Center of Fort Worth when necessary.



Physicians are on the medical staff of Millwood Hospital, but, with limited exceptions, are independent practitioners who are not employees or agents of Millwood Hospital. The facility shall not be liable for actions or treatments provided by physicians.

Model representations of real patients are shown. Actual patients cannot be divulged due to HIPAA regulations.