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  • Anna D. Burke, MD

    Anna D. Burke, MD, is a geriatric psychiatrist and the director of neuropsychiatry at Barrow Neurological Institute. She is board certified in psychiatry with a subspecialty certification in geriatric psychiatry by the American Board of Psychiatry and Neurology.

    Dr. Burke’s expertise includes the treatment of challenging behavioral and psychiatric disturbances that result from neurological conditions. She is a member of the American Association for Geriatric Psychiatry, the Alzheimer’s Association International Society to Advance Alzheimer’s Research and Treatment, and the Arizona Neuropsychiatric Association.

    Dr. Burke received her medical degree from Gdańsk Medical University. She completed her residency training in adult psychiatry at Hartford Hospital’s Institute of Living before completing a geriatric psychiatry fellowship at McLean Hospital, the largest psychiatric teaching hospital of Harvard Medical School.

    In addition to her clinical work, Dr. Burke has led numerous clinical trials of investigational drugs, neuromodulation, environmental modifications, prevention methods, and novel neuroimaging techniques for cognitively impaired patients with neurodegenerative disorders.

    For more information or to request an appointment, please call (602) 406-6262.

    Fax: (602) 406-6261

    Tom Sitzman, MD

    Thomas Sitzman, MD, is a plastic surgeon in the Cleft and Craniofacial Center at Barrow Neurological Institute. He is board certified by the American Board of Plastic Surgery.

    Dr. Sitzman’s expertise includes the surgical treatment of cleft lip, cleft palate, and velopharyngeal insufficiency (VPI). He is a member of the American Society of Plastic Surgeons, the American Cleft Palate-Craniofacial Association, the Association for Academic Surgery, and the Society for Pediatric Research.

    Dr. Sitzman earned his medical degree from Duke University and his master’s degree in public health from Harvard University. He completed his residency in plastic and reconstructive surgery at the University of Wisconsin-Madison, and he completed a fellowship in pediatric plastic surgery at the Hospital for Sick Children.

    Dr. Sitzman’s research interests include evaluating outcomes of cleft lip and palate surgical care, implementing evidence-based strategies in cleft lip and palate care, and identifying optimal treatment strategies for VPI.

    To request an appointment at the Barrow Cleft and Craniofacial Center, please call (602) 406-3560.

    Juan Uribe, MD

    Juan Uribe, MD, is chief of the division of spinal disorders, Volker Sonntag chair of spine research, and vice chairman of neurosurgery at Barrow Neurological Institute. He is board certified by the American Board of Neurological Surgery.

    Dr. Uribe’s expertise includes the surgical treatment of scoliosis, spinal trauma, and spinal tumors, particularly with minimally invasive techniques. He is a member of the American Association of Neurological Surgeons, Congress of Neurological Surgeons, North American Spine Society, Society for Minimally Invasive Spine Surgery, Society of Lateral Access Surgery, and Scoliosis Research Society.

    Dr. Uribe earned his medical degree from Instituto Superior de Ciencias de la Salud in Colombia, where he also completed a residency in neurosurgery at Hospital San Vicente de Paul.  He also completed a neurosurgery residency at the University of South Florida and a spine surgery fellowship at the University of Miami.

    His research interests include anatomical, biomechanical, and clinical studies of applying minimally invasive spine surgery to complex degenerative disease, traumatic injuries, and tumors.

    For more information or to request an appointment, please call (602) 406-3181.

    View Dr. Uribe’s curriculum vitae here.


    Michael T. Lawton, MD

    Michael T. Lawton, MD, is the President and CEO of Barrow Neurological Institute and the Chair of the Department of Neurosurgery. He is board certified by the American Board of Neurological Surgery.

    Dr. Lawton’s neurosurgical expertise includes cerebrovascular disorders (aneurysms, arteriovenous malformations, cavernous malformations, and stroke) and skull base tumors. He has experience in treating more than 4,000 brain aneurysms, 875 AVMs, and 1,000 cavernous malformations, including more than 250 in the brain stem and other highly delicate areas of the brain. He is a member of the American Association of Neurological Surgeons, Congress of Neurological Surgeons, Society of Neurological Surgeons, American Academy of Neurological Surgery, and World Academy of Neurological Surgery.

    Dr. Lawton received a degree in biomedical engineering from Brown University and his medical degree from Johns Hopkins University School of Medicine. He completed his neurosurgery residency at Barrow, where he also completed a fellowship in cerebrovascular and skull base surgery. After joining the faculty at University of California, San Francisco, he later completed a fellowship in endovascular surgery there.

    Dr. Lawton’s research studies the formation, underlying genetics, and rupture of brain AVMs, as well as the hemodynamics, rupture, and computational modeling of brain aneurysms. His clinical research studies the anatomy of microsurgical approaches and clinical outcomes of microsurgery for aneurysms, AVMs, and bypass surgery. He is the principal investigator for the Brain Vascular Malformation Consortium, a NIH-funded multicenter group studying the genetics and clinical course of rare vascular diseases of the brain. He has published over 450 peer-reviewed articles, three single-author textbooks, and over 70 book chapters. He co-founded Mission: BRAIN, a teaching mission to raise the level of neurosurgery practiced in developing countries that conducts annual missions in Mexico and Asia.

    To request an appointment with Dr. Lawton, please call (602) 406-3181.

    About Barrow Neurological Institute
    Since our doors opened as a regional specialty center in 1962, we have grown into one of the premier destinations in the world for neurology and neurosurgery. Our experienced, highly skilled, and comprehensive team of neurological specialists can provide you with a complete spectrum of care–from diagnosis through outpatient neurorehabilitation–under one roof. Barrow Neurological Institute: Discover. Educate. Heal.