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  • 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.

  • Steven Walczak, MD

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

  • Stephen Gregory Hersperger, MD

    Stephen G. Hersperger, MD, is a surgeon with Orlando Health who is board certified in general surgery and surgical critical care.

  • Juan Antonio Lopez-Cespedes, MD

  • 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:

  • 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.

  • Meenor Sagar, MD

    Dr. Meenor Sagar is a board-certified and fellowship-trained diagnostic radiologist with Orlando Health Medical Group Radiology. He has been providing radiology services to patients in Florida since 2001, and his skills include obtaining and interpreting:

  • Harmanjit Sidhu, MD

    Dr. Harmanjit Sidhu is a board-certified radiologist with Orlando Health Medical Group Radiology, specializing in diagnostic radiology and neuroradiology. He has cared for patients in Central Florida since 2007 and believes every patient deserves the best he can possibly offer.

  • Heidi Seymour, PA-C

    Heidi Seymour is a certified physician assistant (PA-C) with the Orlando Health Heart and Vascular Institute’s interventional cardiology team. Her experience includes: