The Future of Cardiovascular Care is Bright: Match Day 2021

Texas Heart Institute is proud to welcome the future leaders of cardiovascular care to its world-renowned training program, in the heart of Houston, which is the home of the largest medical complex in the world. The Texas Heart Institute Cardiology and Advanced Heart Failure and Transplant Cardiology Fellowships at Baylor St. Luke’s Medical Center continue to recruit the most talented applicants in the nation. THI matched another cohort of rising stars.

 “Our fellowships have a rich history of stalwart clinician-educators, and our faculty take tremendous pride in training the fellows to deliver the highest-quality care. We consistently attract outstanding doctors who are highly regarded for their clinical skills. We are honored to welcome these amazingly talented professionals to the Texas Heart Institute family,” stated Stephanie Coulter, MD, Fellowship Program Director.

Fellows are exposed to the latest technologies available in cardiovascular care, including both durable and short-term percutaneous devices, 3D echo, advanced fluoro-less EP studies utilizing 3D mapping systems, and progressive TAVR protocols developed at THI.

“Fellows receive hands-on experience from day one of their fellowship. The fellows benefit from excellent procedural volumes and clinical experience with a variety of pathologies from the diverse Houston area population,” added George Younis, MD, Associate Program Director of the Cardiovascular Disease Fellowship.

The doctors will join the THI team on July 1, 2022.


Diego Celli, M.D.
Medical School: Universidad Central de Venezuela de Medicina Jose Maria Vargas
Residency: University of Miami/Jackson Memorial Hospital

Brett Doliner, M.D.
Medical School:  University of Miami Leonard M. Miller School of Medicine
Residency: Massachusetts General Hospital

Ramsey Kalil, M.D.
Medical School: Renaissance School of Medicine at Stony Brook University
Residency: New York Presbyterian Hospital – Weill Cornell Medical Center

Chelsea Meloche, M.D.
Medical School:  Michigan State University College of Human Medicine – Upper Peninsula (Marquette)
Residency: University of Michigan

Rayhan Saiani, M.D.
Medical School: Weill Cornell Medicine
Residency:  New York Presbyterian Hospital/Weill Cornell Medicine

Andrew Sun, M.D.
Medical School:  McGovern Medical School at The University of Texas Health Science Center at Houston
Residency:  The University of Texas Southwestern Medical Center


Advanced Heart Failure and Transplant Cardiology

Matthew Riesbeck, D.O.
Medical School:  Michigan State University College of Osteopathic Medicine
Residency:  Genesys Regional Medical Center
Fellowship:  Deborah Heart & Lung Center



Texas Heart Institute (THI), founded by world-renowned cardiovascular surgeon Dr. Denton A. Cooley in 1962, is a nonprofit organization dedicated to delivering the future of cardiovascular health through exceptional patient care, discovery, and a commitment to learning. Participating in research programs in cardiology, cardiovascular surgery, stem cell and gene therapy, and regenerative medicine, THI’s scientists and physicians are spearheading some of the most innovative research in the medical field. Through its translational basic and clinical research programs, Texas Heart Institute is learning more every day about the underlying causes of heart disease and the ways to better treat and even prevent it. With initiatives ranging from postdoctoral and continued medical education to public outreach and scientific publications, THI is dedicated to spreading awareness and sharing updates on ways to prevent, treat and defeat cardiovascular disease. With over 12 million visitors coming to its website from around the world every year, is just one of the ways THI is helping to educate people on the importance of heart health. For more information, please visit



The Texas Heart Institute Cardiovascular Disease Fellowship at Baylor St. Luke’s Medical Center was established in 1965 under the guidance of Dr. Robert Leachman. Over the decades, the Texas Heart Institute (THI) cardiology fellowship program has made a name for itself by consistently training outstanding cardiologists who are highly regarded for their clinical skill throughout the cardiology community. The 3-year ACGME certified general cardiology fellowship is open to six fellows per year. We also offer advanced subspecialty fellowships in interventional cardiology, electrophysiology, advanced heart failure, and CT/MRI. After successful completion of the THI general cardiology fellowship program, our fellows are given first preference to subspecialty fellowship positions available at the Institution.



The Texas Heart Institute Advanced Heart Failure and Transplant Cardiology Fellowship Program at Baylor St. Luke’s Medical Center (BSLMC) began in 2004. Since its inception, over 18 national and international fellows have completed the program, and we remain one of the busiest left ventricular assist device and heart transplant programs in the United States today. The Advanced Heart Failure and Transplant Cardiology Fellowship is an approved Graduate Medical Education (ACGME) Council program at Baylor College of Medicine, and has been an accredited fellowship subspecialty program of the ACGME since 2015. The training and goals meet or exceed the United Network of Organ Sharing (UNOS) and the American Society of Transplantation (AST) training guidelines. The one-year fellowship begins July 1 and concludes June 30 the following year. At the end of the program, the fellows qualify to serve as a medical director of a UNOS certified heart transplant program and are eligible for certification in the Advanced Heart Failure and Transplant Cardiology subspecialty by the American Board of Internal Medicine (ABIM).