Physicians and Providers


Professor and Chair, Cardiothoracic Surgery
President's Council Chair for Excellence in Surgery

Dr. Calhoon obtained his medical degree at Baylor College of Medicine in Houston, Texas in 1981. He is Board Certified in Thoracic Surgery and Congenital Cardiac Surgery. He joined the group in 1989...

Professor and Program Director of Thoracic Surgery Residency
Director of Cardiac Surgery, University Health Systems

Dr. Carpenter earned her PhD in Physiology from Penn State University in 1981 and her medical degree from George Washington University in 1989. She is Board Certified in Surgery and Thoracic Surgery...
Associate Professor and Associate Program Director for Thoracic Surgery Residency
Dr. DeArmond specializes in minimally invasive thoracic surgery: Performs video-assisted thoracoscopic (VATS) and robotic-assisted pulmonary, esophageal, and mediastinal surgery with an emphasis on...

Associate Professor
Chief, General Thoracic Surgery
Director of Lung Transplantation
Chiscano Endowed Professorship for Research & Education

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Associate Professor

Professor and Vice Chair, Cardiothoracic Surgery
Chief of Division, Adult Cardiac Surgery
J. Kent Trinkle Chair in Thoracic Surgery

Dr. Sako joined us in 1992 and is a Professor and the J. Kent Trinkle Chair of Thoracic Surgery. He also serves as the Vice Chair for the Department of Cardiothoracic Surgery and Chief of Adult ...

Nurse Practitioners

Acute Care Nurse Practitioner, Specialist
Adult Cardiac, Thoracic, Lung Transplant Surgery

Mrs. Kim Hanks graduated from Northwestern State University School of Nursing in 1999. She began her professional nursing career in the Surgical Trauma Intensive Care Unit at Louisiana State...

Acute Care Nurse Practitioner
Adult Cardiac, Thoracic, Lung Transplant Surgery

Mr. Koch received his nursing degree at the University of Texas Health Science Center San Antonio (UTHSCSA) School of Nursing in 1981 and immediately began employment in the surgical intensive care...

Acute Care Nurse Practitioner, Family Nurse Practitioner
Adult Cardiac, Thoracic, Lung Transplant Surgery

Mr. Rossett joined the University of Texas Health Science Center at San Antonio in 2003 with Interventional Cardiology. He transitioned to Cardiothoracic Surgery in 2005 where he currently practices...
Congenital Heart Surgery Nurse Practitioner, Specialist
Heather Schniepp graduated from the University of Vermont in 1999 with a degree in Nutritional Sciences and Dietetics.  However, she knew at that time she wanted to be a nurse and in 2003, graduated...


Thoracic Surgery Nurse Coordinator
Rebecca Medina received her Master's Degree in Nursing from Western Governor's University in 2016. Rebecca is a surgical nurse coordinator & case manager, she has been with the department since...

Cardiac Surgery Nurse Coordinator

Ms. Wendy Robinson R.N. has more than 30 years of interdisciplinary direct and supervisory clinical experience in many clinical specialties. This experience includes case management, risk management...
Congenital Heart Surgery Case Manager
Rita Rodriguez graduated from St. Phillip’s College in 2005 with an Associate’s Degree in Nursing and received her Certification in Case Management from the Commission for Case Managers in 2010. Her...
Cardiothoracic Surgery Practice Manager


Cardiothoracic Surgery Resident
Dr. Beers was born, and raised in Coatesville, PA. He received his bachelor’s degree in Biology at the University of South Carolina in 2009, and his osteopathic medicine degree at the West Virginia...
Cardiothoracic Surgery Resident
Dr. Bettenhausen was born and raised in Bismarck, ND. The son of a veterinarian, his interest in medicine and surgery was established early in his life. He received his Bachelor of Science in Cell...
Cardiothoracic Surgery Resident
Dr. Carroll was born and raised in Spokane, WA. He received his Bachelor of Science degree in Biology from the University of Washington in 2007 where he was a Mary Gates Scholar studying marine...
Cardiothoracic Surgery Resident
Dr. Cordova was born and raised in the small, quaint town of Sulphur Springs, TX. She received a Bachelor of Science in Human Development from The University of Texas at Austin. She later migrated...
Cardiothoracic Surgery Resident
Dr. Evaristo Fernandez Sada was born in Mexico City, Mexico. He received his medical degree in 2009 from the Escuela de Medicina Ignacio A. Santos in Monterrey, Mexico. For his year of social...
Cardiothoracic Surgery Resident
Dr. Pan was born and raised in Manhattan Beach, CA. He attended Villanova University and the University of Colorado, Boulder, where he completed his undergraduate degree in Kinesiology/Integrated...

Clinical Staff

Benefits Coordinator
New Patient Referral Coordinator