Because every child is extraordinary!

Wonder Kids Pediatrics is the private practice of Dr. Demetrios Leiloglou. Our office is located in the Commons at Wilderness Oak near the intersection of Blanco and Wilderness Oak, close to the Parman Library.

Our address is 20818 Gathering Oak, Suite 109, San Antonio, TX 78260. You can contact us at (210) 762-6464 or by fax (210) 762-6465. If for some reason you have had trouble reaching us by phone, you may request an appointment via our HIPAA secure email address: wonderkidspediatrics {at} mdofficemail {dot} com (you will need to convert this to a usable email address).

You may leave your email in the space provided to receive updates. You can also follow us on Facebook.

Wonder Kids Pediatrics will be closed for the following holidays in 2018:

  • New Year’s Day, Monday, January 1
  • Good Friday, Friday, March 30
  • Memorial Day, Monday, May 28
  • Independence Day, Wednesday, July 4
  • Labor Day, Monday, September 3
  • Thanksgiving holiday, Thursday – Friday, November 22 – 23
  • Christmas holiday, Monday – Wednesday, December 24 – 26

Wonder Kids Pediatrics is pleased to announce that Dr. Elizabeth Owen has joined our practice and is now accepting new patients. Find out more about Dr. Owen on our About Page.

Dr. Leiloglou is currently closed to new patients. This does not include new babies of existing families.


We have been assured by United Healthcare that we are still in-network, despite the fact that some of you have received letters to the contrary. They believe it may be a glitch in their system. The best thing you can do if you are concerned is to call United Healthcare Member Services and ask them to confirm our participation in your plan using our tax ID #471251551. Thank you, and we apologize for any inconvenience.

Our Future Location