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Dwayne Gordon, MD

Program Director, Internal Medicine Residency

Medical School: Loma Linda University School of Medicine.

Residency: Kettering Medical Center.

Selected Awards: Albert A. Brust, Internal Medicine Residency Award of Excellence, 2013. Nurses Choice Award, 2013. Patient Experience Top Performer, 2019. Fellow–American College of Physicians, 2020.

Selected community programs: Youth counseling program on HIV, Disaster Relief efforts, and Medical Mission Trips to Zambia, Peru, Bangladesh, and a Navaho Reserve in the US. Unit Medical Director/Transformational Director, active in quality improvement and patient safety initiatives in the hospital. Leader in resident simulation lab experiences.

Dr. George Everett.

George Everett, MD, MS, FACP

Academic Chair, Internal Medicine Residency

Medical School: University of Iowa College of Medicine
Medical Residency: University of Rochester, Strong Memorial Hospital
Fellowship: University of Iowa College of Medicine
Master of Science in Epidemiology: University of Iowa College of Medicine
Selected Awards:

  • Alpha Omega Alpha (junior year)
  • American College of Physicians Teaching and Research Scholar
  • American College of Physicians Teacher of the Year in Florida, 2007
  • Florida State University College of Medicine Faculty Teacher of the Year, 2007
  • Fellow, American College of Physicians

Scholarship: Author of more than 50 peer-reviewed publications in cancer epidemiology, hospital medicine, residency education and medical economics.

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Daniel Tambunan, MD

Assistant Director, Internal Medicine Residency

Position: Assistant Director, Internal Medicine residency
Medical School: Loma Linda University College of Medicine
Residency: Loma Linda University College of Medicine
Selected Awards: Faculty of the Year, 2005
Scholarship: Author of more than 25 peer-reviewed publications and presentations in dementia, thromboembolism, hepatitis and lipid metabolism. Co-investigator of multiple trials in lipid metabolism, migraine, thromboembolism, heart failure and coronary disease.

Vincent Hsu, MD

Vincent P. Hsu, MD, MPH

Director of Infection Prevention, Assistant Director, Internal Medicine Residency

Medical School: Loma Linda University College of Medicine
Medical Residency: Legacy Portland Hospital
Fellowship (Infectious Diseases): University of Southern California Medical Center
Preventive Medicine Residency: Centers for Disease Control, United States Public Health Services
Masters of Public Health: UCLA School of Public Health
Selected Awards:

  • Servicing the Field Award, (Director's Award, SARS planning)
  • US Public Health Service Awards
  • Unit Commendation Award (CDC Cruise Ship Investigation Team)
  • Foreign Duty Service Award (Malaysia, Vietnam, Bangladesh)
  • Outstanding Unit Citation Award (DHHS Terrorist Response Team)
  • Crisis Response Service Award (Response to Terrorist Attacks)
  • Crisis Response Service Award (Response to Anthrax Attacks)
  • American College of Physicians
  • Infectious Disease Society of America
  • Society for Healthcare Epidemiology of America

Scholarship: Author of more than 15 peer-reviewed publications in epidemiology and infectious diseases.

Karen Echeverria-Beltran, MD

Karen A. Echeverria-Beltran, MD, FACP

Assistant Director, Internal Medicine Residency

Karen A. Echeverria-Beltran, MD, FACP is board certified in internal medicine and brings her dedication and experience in preventive medicine and primary care to our program. She earned her medical degree from the University of Miami Miller School of Medicine and completed an internal medicine residency with Orlando Health, where she achieved Chief Resident status. For more than 10 years, she has been committed to medical education—serving as a faculty member, assistant director and associate program director within the medicine residency program at Orlando Health. For her outstanding work, she received the Primary Care Physician Award in 2001 and 2003 amongst many other accolades. Additionally, she is an active member of the American College of Physicians and currently serves as secretary and member of the Governor’s Council for the Florida Chapter. She strives to provide exceptional care for her patients and is passionate about bringing excellence into the field of internal medicine.

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Luis Isea, MD

Associate Program Director, Internal Medicine Residency

Medical school: Earned a Magna Cum Laude distinction and the Dr. Lorenzo Campins y Ballester Award for graduating top of class at the Luis Razetti School of Medicine at the Universidad Central de Venezuela in Caracas, Venezuela.

Residency: AdventHealth Residency, where he served as Chief Resident. Dr. Isea is a member of the Florida Chapter of the American College of Physicians where he served as Council of Residents Co-chair and Chair of the Resident Well-Being Committee. He is passionate about technology and the development of virtual learning tools to enhance medical education.

Bahar Sumbul-Yuksel, MD

Bahar Sumbul Yuksel, MD

Assistant Program Director, Internal Medicine Residency

Medical School: Cukurova Universitesi Tip Fakultesi, Turkey

Residency: Internal Medicine, Albany Medical Center, Albany, NY

Fellowship (Rheumatology): Albany Medical Center, Albany NY Board Certifications: Internal Medicine and Rheumatology

She has served as an Assistant Professor of Rheumatology/IM at the University of Nevada and the University of Central Florida. She currently works as an academic Rheumatologist here at AdventHealth Internal Medicine Residency

Edward Maharam, MD

Edward Maharam, MD

Assistant Program Director, Internal Medicine Residency

Medical School: Florida International University

Residency: University of Arizona, where he later served as Chief Resident in Quality & Patient Safety. Most recently Dr. Maharam joined our faculty after working as an assistant professor and academic hospitalist at Vanderbilt University Medical Center in Nashville, Tennessee. Dr. Maharam currently helps run our Value Care and Patient Safety conferences.

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Asef Mahmud, MD

Assistant Program Director, Internal Medicine Residency

Medical School: University of South Florida

Residency: University of South Florida. I grew up much of my life in Florida, splitting my time between Orlando and Tampa. I completed a combined 7 year B.S. and M.D. program at the University of South Florida where I also completed a combined residency in both Internal Medicine and Pediatrics serving as chief resident for my last year. I taught as core faculty at the University of Mississippi where I was honored to win teaching awards for my last two years. I am board certified to care for both children plus adults and am very passionate about Transitional Care Medicine looking after patients with complex and chronic childhood diseases who then become adults. I am also very interested in obesity medicine, point-of-care ultrasound, bedside procedures, medical education, and affordable medical technology.

I am thrilled to be back home in Florida and can't wait to get started serving the community that helped raise me