Dr. Daniel L. Beckles is a board-certified cardiothoracic surgeon, academic physician, and surgical leader with more than three decades of surgical training, operative experience, teaching, and translational research. He currently serves as Director and Chief of Cardiothoracic Surgery and Chief of Surgical Services at Ochsner CHRISTUS Health – St. Patrick Hospital in Lake Charles, Louisiana. He also serves as an Adjunct Clinical Preceptor at William Carey University College of Medicine and as a UNOS Region 4 Heart Transplant Surgeon in Texas.
More than 30 years of cardiothoracic training and experience dedicated to advanced heart and lung care, outcomes, and patient-centered recovery.

Dr. Beckles’ career combines advanced cardiothoracic surgical practice with academic medicine, leadership development, and cardiovascular research. His educational background includes a:
-B.S. in Biochemistry,
-M.S. in Chemistry (Organic),
-M.D., Doctor of Medicine
-Ph.D. in Molecular and Cellular Biology (Cardiovascular), and a
-Healthcare MBA with Welch Scholar Distinction.
His postgraduate training includes general surgery internship, residency, and chief residency at SUNY Downstate Medical Center, followed by Cardiothoracic Surgery Residency at the University of Texas Southwestern Medical Center and a Thoracic Surgery Fellowship at Brigham and Women’s Hospital / Harvard Medical School.
For individuals and referring clinicians seeking advanced heart and lung care, Dr. Beckles offers a unique combination of complex surgical expertise, evidence-based decision making, and a focus on functional recovery and long-term cardiometabolic health.
Clinical & Academic Focus: Board Certified in Surgery and Thoracic Surgery · Advanced Heart & Lung Transplantation · Minimally Invasive Cardiac & Thoracic Surgery · Program and Systems Leadership
Dr. Beckles brings extensive experience in general surgery, thoracic surgery, and cardiac surgery, shaped by high-volume academic training and leadership roles across major institutions in New York, Texas, Massachusetts, and Louisiana. His clinical appointments have included Mount Sinai Medical Center, University of Texas Medical Branch, SUNY Downstate Medical Center, United Health Services, Baylor Scott & White Health, and Ochsner CHRISTUS Health. His clinical portfolio has included lung transplantation, heart transplantation, mechanical circulatory support, minimally invasive cardiac and thoracic surgery, Robotic Surgery and advanced cardiothoracic program leadership.
His approach centers on matching complex surgical techniques with individualized perioperative care—optimizing hemodynamics, recovery pathways, and long-term cardiometabolic health for complex cardiac and thoracic patients.
Leadership spanning transplant, minimally invasive surgery, and program development:
Dr. Beckles has been recognized repeatedly for surgical and clinical excellence, including election to Alpha Omega Alpha, the Golden Apple Teaching Award, the President and Alumni Award for Outstanding Graduate Medical Education / Best Surgical Resident Award, repeated inclusion in Guide to America’s Top Surgeons, Texas Monthly Super Doctors Rising Stars, Houston Top Doctors, Castle Connolly Top Doctors, New York Super Doctors, and Louisiana Top Doctors.
Dr. Beckles has held academic appointments across several leading medical institutions and has served in both instructional and professorial roles throughout his career. His appointments have included Instructor of Surgery at Harvard Medical School, Assistant Professor at Mount Sinai Medical School, Assistant Professor of Surgery at the University of Texas Medical Branch, Associate Professor of Surgery and Associate Professor of Cell Biology at SUNY Downstate, Clinical Professor at the University of Mary Hardin-Baylor, Adjunct Clinical Professor at Texas A&M University, and Adjunct Clinical Preceptor at William Carey University College of Medicine.
Across these roles, he has combined operative leadership with curriculum development, mentoring, and cross-disciplinary collaboration in cardiovascular science and surgery.
Surgical Director, Heart Transplantation, VADS & ECMO
Herman and Olive Pascarella Endowed Professorship in Cardiovascular Research
Chief, Division of Cardiothoracic Surgery
Co-Director, Center for Cardiopulmonary and Metabolic Research
President, Alumni Association – College of Medicine, SUNY Downstate Medical Center
Member, Board of Trustees / Board of Managers, SUNY Downstate Alumni Association
Dr. Beckles has built a longstanding reputation for excellence in teaching across medical students, residents, fellows, physician assistant students, nurses, perfusion teams, and multidisciplinary cardiovascular teams. His teaching responsibilities have spanned SUNY Downstate, Mount Sinai Medical Center, University of Texas Medical Branch, Baylor Scott & White Health, Texas A&M University, and the University of Mary Hardin-Baylor.
His educational contributions have included bedside teaching, operative instruction, clerkship lectures, fellowship teaching, cardiac cath conference education, journal club leadership, and academic grand rounds across multiple departments and institutions.
Dr. Beckles has mentored medical students, residents, fellows, junior faculty, and premedical trainees across multiple institutions and programs, including SUNY Downstate, MIT Laureates and Leaders, the American Heart Association mentoring pathway, and the Cardiothoracic Surgery Summer Scholars Program. His mentees have gone on to leadership and faculty roles in cardiac surgery, pediatric cardiac surgery, critical care, and academic medicine.
Dr. Beckles’ research career spans translational cardiovascular biology, cardiometabolic disease, wound healing, advanced cardiac surgical outcomes, ECMO, ultrafiltration, and molecular pathways in hypertrophy and ischemia-reperfusion injury. His work includes principal investigator, co-principal investigator, sub-investigator, and chief science officer roles across academic, translational, and industry-supported projects.
His funded and sponsored research has included cardiometabolic disease, acute kidney injury after cardiac surgery, ECMO-related studies, cytokine modulation with ultrafiltration, AI data-collection studies using echocardiography and ECG, and wound healing innovation—bringing scientific rigor directly to the bedside and operative suite.
US Patent 6,433,018 — Method for reducing cardiac hypertrophy and ischemia
US Patent 7,235,588 — Method for reducing hypertension and heart failure
Dr. Beckles has authored and co-authored peer-reviewed articles, book chapters, abstracts, videos, and invited presentations spanning cardiovascular surgery, off-pump coronary surgery, minimally invasive surgery, heart and lung transplantation, hemodynamic management, translational cardiovascular science, and molecular cardiology. His publication record reflects both clinical outcomes research and foundational scientific investigation.
Dr. Beckles is active in multiple national and international professional societies across surgery, thoracic surgery, cardiology, transplantation, minimally invasive surgery, academic surgery, ERAS Cardiac, and lifestyle medicine. These include the American College of Surgeons, Society of Thoracic Surgeons, American College of Cardiology, American College of Chest Physicians, American Heart Association, International Society for Heart & Lung Transplantation, European Association for Cardio-Thoracic Surgery, American Society of Transplantation, American College of Healthcare Executives, and the American College of Lifestyle Medicine, among others.
In addition to his clinical and academic roles, Dr. Beckles has served on numerous hospital, academic, transplant, quality, tumor board, robotic surgery, and cardiology committees across multiple institutions. He has also contributed to national review boards, mentoring initiatives, alumni leadership, and community health education in the United States and the Caribbean.
His service portfolio reflects a career committed not only to patient care, but to institutional excellence, academic mentorship, and public health outreach—particularly in cardiovascular health, heart failure prevention, and lifestyle-focused recovery after major cardiothoracic surgery.
Dr. Daniel L. Beckles’ career reflects the convergence of technical surgical excellence, academic rigor, meaningful teaching, translational research, and mission-driven leadership. For institutions, referring clinicians, collaborators, and patients seeking high-level expertise grounded in both science and service, his work represents a distinctive model of modern cardiothoracic surgery.
To explore collaboration, referral pathways, or advanced surgical care options, you may request a consultation or connect regarding research, program development, or educational initiatives.
Share brief clinical details or collaboration goals, and a member of the team will follow up with scheduling options and next steps.