T.,
We love our pediatrician and have been using him for 13 years. He is a predi asthma, allergy specialist. Which was part of why we began using him. Best of all he is in an office by himself, we have never had to wait long to see him (I mean usually 30 min or less) and he truely does care. He isn't however located in keller, he is in fort worth by Harris and Cooks hospitals. Here is the information, if you can't find what you are looking for in Keller.
Dr S. Kaushik 617 Travis Ave, FT Worth, ###-###-####
Also, from experience I would interview any doctor you are considering. Your time, money and mostly your family are presious. Make sure you can work together for your childrens health. Best of Luck, K