The Center for Obesity and its Consequences in Health (COACH): Meet the Team

The COACH team is a multidisciplinary group of health care professionals who share an interest in helping children and families live a healthy lifestyle. They all chose to work specifically in the field of treatment of overweight children, and have a wealth of professional experience to qualify them for their roles. Beyond their experience, they bring enthusiasm and a passion for their work.

The team includes pediatric endocrinologists, a pediatrician, a cardiologist, registered nurses and support from registered dietitians, psychologists, social workers and physical therapists; all are ready and willing to go above and beyond for the patients they serve.

COACH Providers


Amy M. Burton, M.D. 
Ellen Grishman, M.D., MPH
Olga Gupta, M.D.
Michele R. Hutchison, M.D. 
Roy J. Kim, M.D. 
Ximena Lopez, M.D.
Sudha L. Mootha, M.D. 
Jon D. Oden, M.D.
Christy B. Turer, M.D.
Shawyntee Vertilus, M.D., MPH
Ellen Grishman, M.D., MPH
Olga Gupta, M.D....
Shawyntee Vertilus, M.D., MPH

Nurse Practitioners

Marisa Frizell
Poonam Patel 
Jim Penn   
Preethy Varghese 

The Team Practice Administrator

Debby Johnson, RD, LD, CDE


Catherine Gorman-Moore, RN

COACH Scheduling Staff

Lily Martinez
Yvonne Rivera, MA

Additional support provided by registered dietitians, psychologists, social workers and physical therapists.


Dallas Ambulatory Care Pavilion
Endocrinology Clinic, 4th Floor, Clinic Number 4400
2350 Stemmons Freeway
Dallas, TX 75207