(210) 731-4800
About Us
8542 Wurzbach Rd. | San Antonio, TX 78240-1241
Telephone: 210-616-7300 | Fax: 210-616-7359

Wurzbach Clinic

  • After retiring from the United States Air Force as a Lieutenant Colonel and medical director of the Family Medicine Clinic at Randolph AFB, Dr. Tim Kosmatka brought his wealth of knowledge and expertise to HealthTexas Medical Group.He was born and raised in Sussex, Wisconsin where he enjoyed the outdoors as well as participated in multiple sporting activities. One of  the sports where he excelled was football. His dream was realized when he was able to play college football at the Air Force Academy.

  • Dr. Stella Yu began her career in health care as a registered nurse at St. Joseph Hospital in Houston. While working as a nurse for five years she decided to further her education. She received her Doctor of Medicine degree from the University of the Visayas Gullas College of Medicine, graduating Cum Laude. Dr. Yu completed her residency at the Scranton Temple Residency Program in Pennsylvania.

  • Dr. Clark was born and raised in San Antonio, Texas and earned her Doctor of Medicine from Texas Tech University School of Medicine in Lubbock, Texas. She completed her Internal Medicine Internship and Residency training at the University of Texas Health Science Center at San Antonio.

  • Dr. Luna was born and raised right here in San Antonio. After graduating from Alamo Heights High School, he headed to Baltimore, Maryland where he received his Bachelor of Science degree from world renowned Johns Hopkins University. Upon completion of his undergraduate degree, Dr. Luna returned to San Antonio, where he received his Medical Degree and completed his internship from the University of Texas Health Science Center.

  • Kara Goodspeed was born and raised in the beautiful city of Bastrop, Texas. Upon graduating high school, she ventured off to Hattiesburg, Mississippi where she received her Bachelor of Science in Nursing (BSN) at Southern Mississippi University.


  • Ashley Hartman was raised in Fort Worth, Texas. Upon graduating high school, she attended Texas State University and received her Bachelor of Science in Radiation Therapy. While at Texas State, she was inducted into the nation’s oldest and largest honor society, Phi Eta Sigma National Honor Society.

  • Ms. Jacqueline Marks was born and raised in Atlanta, Georgia. She left the comfort of the south and ventured north where she received her Bachelor of Science degree at Mt. Saint Mary College in Newburgh, New York where she graduated Summa Cum Laude.