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  • William Samuel Havron, MD

    William S. Havron III, MD, FACS, joined Orlando Health's Department of Surgical Education as the director of surgical simulation and is now the program director of the general surgery residency. Dr. Havron currently serves as a surgeon for the Orlando Health Complex Hernia Center. He is board-certified in general surgery and surgical critical care.

  • Wei-Shen Chin, MD

    Dr. Wei-Shen Chin is a board-certified diagnostic radiologist with Orlando Health Medical Group Radiology. He has been treating patients in Central Florida for 31 years and during that time has served as chairman of the radiology department and chief of oncologic imaging at Orlando Health UF Health Cancer Center. His specialties include:

  • Daniel Dauer, MD, MPH

    Dr. Daniel Dauer is a board-certified and fellowship-trained musculoskeletal radiologist with Orlando Health Medical Group Radiology. He cares for patients who need interpretation of their diagnostic imaging, including:

  • Daniel J. Nohra Revilla, DO

    Daniel Nohra Revilla, DO, is a neurologist specializing in headache and facial pain at the Orlando Health Neuroscience Institute Neurology Group. He cares for patients with debilitating headaches and facial pain, customizing treatment based on the type of pain, triggers and other medical conditions.

  • Daniel Brown, DO

    Dr. Daniel Brown is a board-certified diagnostic radiologist and neuroradiologist with Orlando Health Medical Group Radiology. He has a clinical interest in emergency imaging. Dr. Brown cares for patients who need interpretation of their diagnostic imaging, including:

  • Edgar H. Sanchez, MD

    Edgar Sanchez, MD, joined Orlando Health Physicians in 2015. Dr. Sanchez is board certified in infectious diseases and internal medicine and is a current member of the Infectious Diseases Society of America and the American College of Physicians.

  • Luis Isaac Garcia, MD

    Dr. Luis Garcia is a clinical cardiac electrophysiologist with the Orlando Health Heart and Vascular Institute. He specializes in the evaluation and treatment of heart rhythm disorders, cardiac ablation, and cardiac device implantation and management. His expertise includes:

  • Marc Johannsen, DO

    Dr. Marc Johannsen is a diagnostic radiologist with Orlando Health Medical Group Radiology. He spent a decade providing radiology services for the U.S. Navy, and his skills include obtaining and interpreting:

  • Mark Arthur Vollenweider, MD

    Mark Vollenweider, MD is a board-certified interventional pulmonologist with the Rod Taylor Thoracic Care Center at Orlando Health Cancer Institute, where he also is part of the lung cancer and lung nodule screening program. As a leader in interventional pulmonology, Dr. Vollenweider is skilled at treating patients with conditions ranging from cancer to lung nodules and at using a variety of minimally invasive procedures and diagnostic techniques. He is expertly trained on both the Ion and robotic bronchoscopy platforms that help diagnose and treat lung issues for optimal results. These advanced robotic systems support earlier detection of lung cancer by more easily accessing the disease location and more accurately determining lesion size.

  • Michael G. Hill, MD

    Dr. Michael Hill is a board-certified neurosurgeon with the Orlando Health Spine Center, a multidisciplinary collaboration between Orlando Health Jewett Orthopedic Institute and Orlando Health Neuroscience Institute. He specializes in complex spinal procedures of the cervical, thoracic and lumbar spine. Dr. Hill offers a full range of neurosurgical procedures, including: