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  • Anna Burke, MD

    Anna 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 Geriatrics Society.

    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.

    Karissa Secora, MPAS

    Karissa Secora is a physician assistant in the Jan & Tom Lewis Migraine Treatment Program at Barrow Neurological Institute. She is board certified by the National Commission on Certification of Physician Assistants.

    Ms. Secora’s expertise and research interests include headache disorders. She is a member of the American Headache Society, American Academy of Neurology, American Academy of Physician Assistants, and Association of Neurology Physician Assistants.

    Ms. Secora received her master’s degree in physician assistant studies from Concordia University Wisconsin.

    Fax: (602) 406-6261

    Office Location

    Karissa Secora, MPAS
    240 West Thomas Road, Suite 400
    Phoenix, Arizona 85013

    Ryan Walsh, MD, PhD

    Ryan Walsh, MD, PhD, is a board-certified neurologist at the Muhammad Ali Parkinson Center at Barrow Neurological Institute. In addition, he is fellowship-trained in movement disorders.

    Dr. Walsh’s clinical expertise includes caring for patients with Parkinson’s disease and all other movement disorders. He is a member of the American Academy of Neurology, the International Parkinson and Movement Disorder Society, and the Alpha Omega Alpha National Medical Honor Society.

    Dr. Walsh earned his medical degree and PhD from the NIH-funded Medical Scientist Training Program at the University of Cincinnati College of Medicine. He completed his neurology residency at the University of Chicago Medical Center, where he also pursued postdoctoral training in neuroimaging. He then completed a fellowship in movement disorders at the University of Alabama at Birmingham.

    Dr. Walsh’s research interests include cognitive impairment and neuro-imaging in Parkinson’s disease. He was integral in conducting new neuro-imaging research during his tenure at the Cleveland Clinic Lou Ruvo Center for Brain Health, including serving as principal investigator of one of three research projects for a large National Institutes of Health (NIH) award. Dr. Walsh’s efforts have garnered several honors and awards, including being recognized by the American Academy of Neurology as one of 12 individuals nationally selected for their inaugural Emerging Leaders Program.

    To request an appointment with Dr. Walsh, call (602) 406-6262.

    Fax: (602) 406-6261

    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.