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Daniel Beckles, M.D., PhD, Division Chief of Cardiothoracic Surgery at SUNY Downstate Medical Center

Daniel Beckles, M.D., PhD

Division Chief, CT Surgery

Department of Surgery, SUNY Downstate Medical Center

Tel: (718) 270-1981 | Fax: (718) 270-3843



Daniel Beckles, M.D., PhD, is a Clinical Professor of Surgery and a Chief of the Division of Cardiothoracic Surgery at SUNY Downstate Medical Center. He is board certified in general and thoracic surgery.

Dr. Beckles was born in Trinidad and Tobago and migrated to the USA at the age of 17. He earned his BS degree in Biochemistry and his MS degree in Chemistry from Stony Brook University and his Medical Degree at SUNY Downstate College of Medicine. He stayed on to complete his general surgery internship, residency and chief residency along with his PhD in cardiovascular Molecular and Cellular Biology at SUNY Downstate Medical Center/Kings County Hospital Center. He completed his cardiovascular and thoracic surgery residency at the University of Texas Southwestern Medical Center in Dallas/Parkland Memorial Hospital and a thoracic surgery fellowship at the Brigham and Women's Hospital-Harvard Medical School.

He is board certified in general and thoracic surgery and was the founding Director of Minimally Invasive Cardiac and Thoracic Surgery at the University of Texas Medical Branch (UTMB), a member of the Texas Medical Center in Houston. During the last five years, he holds the record for performing numerous first, including the first robotically assisted minimally invasive cardiac surgery, minimally invasive aortic valve and mitral valve surgeries and had an active hybrid coronary revascularization program. His practice used minimally invasive and beating heart off-pump CABG for coronary revascularization and bilateral internal mammary arteries. His practice emphasized collaboration and a multi-disciplinary approach to provide personalized patient care and offer minimally invasive surgery whenever possible without compromising outcomes.He also performed the first video-assisted thoracoscopic (VATS) lobectomy, VATS bilobectomy, VATS pneumonectony, VATS thymectomy, robotic assisted lobectomy, cervical video mediastinoscopy, and the first minimally invasive esophagectomy (MIE) while at UTMB.

He is a specialist in the care of end-stage heart disease and lung diseases. He was the United Network for Organ Sharing (UNOS) certified surgical director of heart transplant and the previous co-director of lung transplantation. He performed pediatric and adult ECMO and implantation of left ventricular assist devices (LVADs) for end-stage heart disease. During this time, his institution obtained advanced certification in ventricular assist device for destination therapy from the Joint Commission in January 2012 and he served as a Principal Investigator for the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS). As the surgical co-directorship of Lung transplantation his institution was certified by CMS for the first time in 2012 and awarded the national silver award by the U.S. Department of Health and Human Services.? Prior to moving to Texas, Dr. Beckles's first academic appointments were as an Assistant Professor of Cardiothoracic Surgery and Surgical Director of the Lung Transplant Program at Mount Sinai Medical Center in New York City.

Dr. Beckles is an academic surgeon, researcher, educator and innovator with numerous peer reviewed clinical and basic science papers and abstracts, book chapters in cardiovascular surgery and cardiac molecular biology. He is an inventor on 2 United States and international patents developed for heart diseases. He is double boarded by the American Board of Surgery and the American Board of Thoracic Surgery. He is a fellow of the American College of Cardiology, the American College of Surgeons, American College of Chest Physicians, member of the Society of Thoracic Surgeons, the American Heart Association, International Society for Minimally Invasive Cardiothoracic Surgery and the International Society for Heart and Lung Transplantation.

He has numerous clinical, teaching, and research excellence awards and was elected into AOA, named in Guide to Americas Top Surgeons by Consumers Research Council 2010 - 2014, chosen as Texas Super Doctors Rising Stars in 2013, recognized as Top Doctors in Houstonia Magazine in 2013 and 2014 and recognized as a Houston Top Doctor in H Texas Magazine in 2014 by his peers. He is honored to be a part of the Department of Surgery in the Division of Cardiothoracic Surgery at Downstate Medical Center.

Patient Appointments

8:00 - 5:00 PM daily.
To make an appointment, please call 718-270-1981

Louis H. Stein, M.D., PhD

Louis H. Stein, M.D., PhD

Division of Cardiothoracic Surgery

Department of Surgery


Tel: (718) 270-1981 | Fax: (718) 270-3843



Louis H. Stein, MD, PhD received his BSc in Biomedical Engineering from Johns Hopkins University. He received the Provost Dean’s and Department of Biomedical Engineering’s Awards for undergraduate research excellence in cardiovascular physiology and device applications.  Dr. Stein then continued his studies at the Johns Hopkins School of Public Health, where he pursued a dissertation in cellular and systems physiology while concurrently completing a master of health science degree.

Dr. Stein went on to pursue his Doctor of Medicine at Jefferson Medical College.  His interest in  cardiac surgery was fostered by the mentorship of Drs. Daniel Marelli and Scott Silvestry.   As a medical student, Dr. Stein continued to conduct benchtop and clinical research as well helping in the establishment of the LVAD and Heart Transplant program at Jefferson.  By graduation, he was recognized with  Lavine Scholarship for Research, the William J. Bodin, Jr. Research Award, The Robert J. Mandle Memorial Graduation Award, the Hyman Menduke Research Prize, and was elected a member of the Hobart Amory Hare Medical Honor Society

From Philadelphia, Dr. Stein  went on to pursue his general surgery training at the Yale –New Haven Hospital.  At Yale, Dr. Stein was mentored by the noted aortic surgeon, John Elefteriades. Together, they published a key study demonstrating the protective nature of Statins on the development of thoracic aortic aneurysms. Subsequent to Yale, Dr. Stein pursued training in Cardiothoracic Surgery at the NYU-Langone Medical Center.  At NYU Dr. Stein received extensive training in minimally invasive cardiac surgery, valvular heart disease (both repair and replacement), thoracic aortic disease, and coronary artery disease.  To complete all aspects of cardiothoracic training, Dr. Stein spent one additional year at Stanford University Hospital gaining experience in mechanical circulatory support (including ventricular assist devices and ECMO) as well as heart  and lung transplantation. 

Dr. Stein’ clinical interests include all aspects of adult heart surgery including coronary artery disease, valvular heart disease, aortic disease, ECMO, LVAD, and heart transplant.  He has published 30 original contributions, reviews, book chapters, abstracts, and invited talks.  He maintains investigational interests the basic mechanisms of cardiovascular disease, clinical studies, as well as the translation of novel therapy to clinical application.  Dr. Stein was born and raised in White Plains, New York and curently lives in Brooklyn with his wife and two sons (5 and 8 years old).

Patient Appointments

8:00 - 5:00 PM daily.
To make an appointment, please call 718-270-1981