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Meet Our Doctors

Dr. John Covert

Dr. John Covert is passionate about dentistry. He thoroughly enjoys his practice and his patients and strives to remain on the leading edge of dentistry through continuing education. Dr. Covert has been practicing at this location since 1984. Dr. Covert graduated Magna Cum Laude from Midwestern State University with a Bachelor of Science degree in Biology and a minor in Chemistry in 1980. He was named the Outstanding Graduate from the Division of Life Sciences. He received his doctorate of dental surgery from the University of Texas Dental School at San Antonio in 1984.

He and his wife, Carol, have twin boys. Dr. Covert enjoys tennis, scuba diving, camping, and other outdoor activities with his family. His father was career Air Force, which enabled him to live in many different places growing up with a love of history and travel. Dr. Covert was in the U.S. Army Reserve from 1980 until 1990.

 

Dr. Katherine Hubenak

Dr. Katherine Hubenak is native to San Antonio. She left just long enough to attend Texas A&M University, where she completed her degree in Biomedial Science. She returned home to San Antonio to earn her dental degree from the University of Texas Health Science Center Dental School. Since her graduation in 2003, she has been in private practice here in San Antonio. She is a member of the American Dental Association, Texas Dental Association and the San Antonio District Dental Society.

Her husband, Dr. Darren Hubenak, is a veterinarian practicing in the Stone Oak area. They have four children and enjoy parenting, being involved with their church and spending time outdoors.

 

Dr. Vicki Leonhart

Dr. Vicki Leonhart is from Houston, TX, she is a graduate of Texas A&M University and she truly loves helping people achieve oral health. She received a B.S. Degree in Biomedical Science in 1998. After graduation, she remained at Texas A&M doing research in a Clinical Pathology Lab. She enjoyed research but yearned to work more directly in the care of patients. She then returned to Houston to attend the University of Texas Dental School. While in dental school, she continued her interest in research as a Fellow in Cranial Facial Development. Dr. Leonhart received several awards and recognitions through the Sarnat Competition, Hinman Symposium and the Committee on the Status of Women. She received her DDS degree in 2006 with accomplishments and awards in Oral Biology, Equilibration, Removable Prosthodontics and more. After graduation, she and her husband, Dr. Ryan Leonhart (a San Antonio native), moved to Louisville, Ky. She practiced general dentistry in Louisville while he completed his residency in Oral and Maxillofacial Surgery. They returned to Texas after he completed training in 2012 to be closer to family.

As a general dentist, Dr. Leonhart remains active in her professional community and is a proud member of the American Dental Assocation, the Texas Dental Association, and the San Antonio Dental Society. In her spare time, Dr. Vicki Leonhart is a busy mother of two boys, enjoys gardening, travel, and reading.

Dr. Aaron Vaughn

Dr. Aaron Vaughn graduated from Cole High School. He then spent a year at Ricks College in the shadows of the Teton Mountains before finishing his undergraduate studies at Brigham Young University. He came home to San Antonio in 1997 to attend Dental School at the UT Health Science Center. After graduation, Dr. Vaughn completed a one year Advanced Education in General Dentistry residency at the Audie L. Murphy hospital in San Antonio. He then completed an endodontic specialty residency at Virginia Commonwealth University where he earned a Masters degree in June 2005. Dr. Vaughn also holds a part-time position as Clinical Professor in the Department of Endodontics at the University of Texas Health Science Center.