About Us

Dr. Jonathan Sheinberg

Dr. Jonathan Sheinberg
After attending Washington and Lee University, Dr. Jonathan Sheinberg received his medical degree from the Georgetown University School of Medicine in Washington, DC. He then completed a rotating internship at Georgetown University. In 1995, Dr. Sheinberg entered Military Service and completed his residency in Internal Medicine at USAF Medical Center, Keesler Air Force Base Mississippi. Dr. Sheinberg then completed his fellowship in Cardiovascular Disease at Wilford Hall USAF Medical Center, Lackland Air Force Base, Texas. After fellowship, Dr. Sheinberg served as a Cardiologist and Flight Surgeon in the United States Air Force. He was deployed overseas and decorated during Operation Enduring Freedom.

During his military service, Dr. Sheinberg also has served as assistant professor of medicine at Wright State University in Dayton, Ohio, and at the Uniformed Services University of the Health Sciences in Bethesda, Maryland. Dr. Sheinberg is trained in both invasive and noninvasive cardiology, performing cardiac catheterization, pacemaker implantation, transthoracic and transesophogeal echocardiography. He specializes not only in treating, but in actively preventing the development of cardiovascular disease. Dr. Sheinberg is Board Certified in Cardiovascular Disease by the American Board of Internal Medicine. He is certified to perform and interpret nuclear cardiology studies and is level II trained in CT coronary angiography. Dr. Sheinberg is a Fellow of the American College of Cardiology, and is a member of the Travis County Medical Society and the Texas Medical Association.

Dr. Sheinberg currently serves as the Staff Physician for the Austin Police Dept. His responsibilities include the development and deployment of individual First Aid Kits (IFAKs) as well as the development of a Tactical Combat Casualty Care Course (TCCC) with targeted role out to the entire department. Dr. Sheinberg is also involved in cardiac research within the Law Enforcement Community. He recently developed The Cardiac Screening Initiative (CSI), an observational study with the intent on determining the prevalence of coronary disease in the asymptomatic law enforcement officer.

Dr. Sheinberg's enjoys spending time with his wife Lauren and three children Anna, Ben and Jeremy.  He is a military history buff and his hobbies include crossfit, running and weight lifting.

Dr. Gary Foster

Dr. Gary Foster
Dr. Gary Foster received his bachelor’s and master’s degrees from Stanford University in Palo Alto, California. He earned his medical degree from the University of Texas Southwestern Medical School in Dallas. Dr. Foster completed his internship and residency training in Internal Medicine at Vanderbilt University Medical Center in Nashville, Tennessee, where he also completed a postdoctoral research fellowship.

He completed his cardiology fellowship at Stanford University Medical Center, serving as Chief Fellow for the Division of Cardiovascular Medicine. He entered clinical practice in 1995, becoming a senior partner with The Sanger Clinic in Charlotte, North Carolina. Dr. Foster returned to Texas and has been practicing cardiology in Austin since 2000. Dr. Foster is board certified by the American Board of Internal Medicine in Cardiovascular Disease and is licensed in Nuclear Cardiology. He is a Fellow of the American College of Cardiology.

Dr. Harry Yu

Dr. Harry Yu Dr. Harry Yu received his undergraduate and medical degrees at Northwestern University in Illinois. He completed his internship and medical residency at the Harvard Medical School program at The Beth Israel Hospital and his cardiology fellowship at the Tufts Medical School program at the New England Medical Center in 2002. He has done clinical research at Harvard and Tufts in lipids, and novel cardiac risk factors. Dr. Yu has specialized training in heart failure and cardiac imaging including echocardiography, nuclear cardiology, and cardiac CT.

Prior to joining Cardiovascular Associates, Dr. Yu practiced in the Seattle area and was elected by his peers as a “Top Doc” by Seattle Magazine from 2010 to 2012. He is board certified in Cardiovascular Disease, Nuclear Cardiology, and Echocardiography. He is a Fellow of the American College of Cardiology.

Dr. Yu enjoys mountain biking, hiking, snowboarding, and spending time with his wife and children.


Dr. Matthew Rogers

Dr. Matthew Rogers Board certified in Cardiovascular Disease and Interventional Cardiology.

Dr. Matthew Rogers earned his medical degree from the University of Texas Medical School in Houston, where he was honored as a Dean's Scholar. He completed his Internal Medicine internship and residency programs at the Baylor College of Medicine in Houston. He is a former Associate Director of the Emergency Department at the Houston Veterans Affairs Medical Center. While completing his Cardiology fellowship at the Texas Heart Institute in Houston, Dr. Rogers was honored as an Outstanding Fellow and served as Chief Cardiology Fellow and as Advanced Cardiac Life Support course instructor. Dr. Rogers has served on the Coronary and Peripheral Interventional Teaching Staff, and as a staff Cardiologist and staff Interventional Cardiologist at the Texas Heart Institute.

Dr. Rogers is board certified in Cardiovascular Disease and Interventional Cardiology. He is a Fellow of the American College of Cardiology and is a member of the Cardiac Society at the Texas Heart Institute, the American College of Physicians, the Travis County Medical Society, the Texas Medical Association and the American Medical Association

Ross Brown, RN CNS

Ross Brown, RN CNS Ross Brown is the Heart Care Program Coordinator. He is board certified as a Clinical Nurse Specialist in Adult Health with Prescriptive Authority (ANCC), and a Registered Nurse. He is a member of the National Association of Clinical Nurse Specialists, the National Lipid Association, and NATCO-the organization of transplant professionals. Ross received his Bachelor of Arts in Psychology from the University of New Mexico at Albuquerque and his Master of Science in Nursing is from the University of Texas at Austin.  Prior to directing the Home Heart Care program at Cardiovascular Associates, Ross worked as a midlevel provider at the Seton Heart Specialty Care and Transplant Center with acute and chronic heart failure patients and mechanical ventricular support.  He also has prior general cardiology experience as a midlevel provider and as a registered nurse.  Before nursing, Ross worked in social services and crisis intervention with adults and children dealing with chronic medical and mental health disorders.

Cassandra Hollifield, P.A.

Cassandra Hollifield, P.A. Cassandra Hollifield, P.A. Cassandra Hollifield is a board certified Physician Assistant. She is the co-president of the Central Texas Physician Assistant Society and a member of the Texas Academy of Physician Assistants, American Academy of Physician Assistants, and the Association of Physician Assistants in Cardiology. Cassandra received her Bachelor of Arts in Chemistry with a minor in Spanish from North Carolina State University. After graduating magna cum laude with a Bachelor of Science in Physician Assistant Studies from the University of Texas – Pan American, she went on to receive her Master of Science in Physician Assistant Studies. Prior to working with the Home Heart Care program at Cardiovascular Associates, Cassandra worked as a Physician Assistant at the Seton Heart Specialty Care and Transplant Center working with acute and chronic heart failure patients, heart transplant patients, and mechanical circulatory support. She also has prior general cardiology and cardiothoracic surgery experience as a Physician Assistant.


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