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  • Damita Thomas, MD

    Dr. Damita Thomas is a board-certified nuclear medicine specialist with Orlando Health Medical Group Radiology who has more than a decade of experience. She cares for patients who need interpretation of their nuclear imaging, which is used to examine organ function. The most common areas for nuclear scans include:

  • Dianna Yang, DO

    Dr. Dianna Yang is a board-certified radiologist with Orlando Health Medical Group Radiology specializing in vascular and interventional radiology. She has cared for patients in Central Florida since 2015.

  • Marc Underhill, MD

    Dr. Marc Underhill is a board-certified and fellowship-trained vascular and interventional radiologist with Orlando Health Medical Group Radiology. He has been working as a radiologist and teaching medical residents for the past decade. As both an interventional and diagnostic radiologist, Dr. Underhill can capture and interpret medical images and perform minimally invasive procedures using those images as a guide. His skills include:

  • 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.

  • 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:

  • Joel A. Garcia-Fernandez, MD

    Dr. Joel Garcia is a board-certified cardiologist at the Orlando Health Heart and Vascular Institute. He is board certified in internal medicine, cardiovascular disease, interventional cardiology and endovascular medicine, and his expertise includes:

  • Paul Gibson, MD

    Dr. Paul Gibson is a board-certified diagnostic radiologist with Orlando Health Medical Group Radiology. He has more than 30 years of imaging experience, including specializations in:

  • John Murphy, MD

    Dr. John Murphy is a board-certified radiologist with Orlando Health Medical Group Radiology serving Central Florida patients since 2005. His specialty is neuroradiology. His diagnostic imaging experience covers:

  • John Cappleman, MD, FACP

    Dr. John Cappleman is a board-certified internal medicine physician with Orlando Health Physician Associates. He has cared for patients in Orange County since opening a private practice in his hometown of Winter Garden in 1987.

  • Alexander Azbel, MD

    Dr. Alexander Azbel is a board-certified vascular and interventional radiologist with Orlando Health Medical Group Radiology who has 24 years of experience. He specializes in uterine fibroid embolization and liver cancer therapy.