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  • Muhammad S. Ghumman, MD

    Muhammad (Mo) Ghumman, MD, FACC, is an interventional cardiologist with Orlando Health Heart & Vascular Institute. He is board certified in internal medicine, echocardiography, cardiovascular disease and interventional cardiology. He also is a registered physician in vascular interpretation and a fellow of the American College of Cardiology (FACC). His clinical interests include acute coronary intervention as well as peripheral artery disease intervention.

  • 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:

  • Mary K. Reischmann, MD

    Mary Kate Reischmann, MD, is a board-certified pulmonologist with Orlando Health Medical Group Pulmonary and Sleep Medicine. Specializing in diseases, conditions and injuries of the respiratory system and critical care, Dr. Reischmann treats cystic fibrosis, asthma, lung cancer, chronic obstructive pulmonary disease (COPD) and more.

  • Marshall Chandler Cress, MD

    Neurological Surgery

  • 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:

  • Maxim Olivier, MD

    Dr. Maxim Anthony Olivier is a board-certified cardiologist with the Orlando Health Heart and Vascular Institute. He specializes in treating conditions that affect the heart and blood vessels, such as:

  • 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:

  • Michael Gurian, MD

    Dr. Michael Gurian is a board-certified diagnostic radiologist with Orlando Health Medical Group Radiology. He uses medical imaging to look inside the body to diagnose illnesses and conditions and recommend treatment for his adult and pediatric patients.

  • M. Firas Sioufi, MD

    Dr. Firas Sioufi is a neurologist with the Orlando Health Neuroscience Institute with an emphasis on clinical neurophysiology. His specialties include:

  • Mellisa Powell, APRN

    Mellisa Powell is a certified family nurse practitioner (FNP-C) with Orlando Health Medical Group Urology. She has been a nurse at several Orlando Health hospitals since 2008. She joined Orlando Health Medical Group Urology PUR Clinic in 2018 when she earned her family nurse practitioner certification.