Gregory D. Bell, M.D.
Dr. Bell graduated from the University of Washington School of Medicine, where he later completed both his internship and his residency in neurology.
He earned board certification in 1999 and is a member of the American Academy of Neurology, the American Headache Society, and the Puget Sound Neurological Society.
In addition to his work with Olympia Neurology, he also serves as a clinical assistant professor in the Department of Neurology at the University of Washington School of Medicine.
Maureen A. Callaghan, M.D. FAAN
Dr. Callaghan earned her medical degree at the University of California at Los Angeles. She completed an internship in internal medicine at Santa Clara Valley Medical Center and a residency in neurology at the University of Washington.
She received board certification in neurology in 1990 and became a Fellow of the American Academy of Neurology in 2005.
In addition to her duties at Olympia Neurology, Dr. Callaghan is a Medical Officer in the Department of Neurology at Madigan Army Medical Center and a Study Physician at American Lake Veterans Administration, both of which are located in Tacoma.
She is a past-president of the Thurston-Mason County Medical Society, the Washington State Medical Association, and the Washington State Neurological Society. She currently serves on the Government Relations Committee of the American Academy of Neurology.
Dr. Callaghan has practiced in association with the physicians of Olympia Neurology since 1985.
Youngbin Choi, M.D.
Dr. Choi earned his medical degree at the Catholic University of Korea, where he also completed an internship and a neurology residency (St. Mary’s Hospital).
After serving in the military as a public health physician, Dr. Choi returned to the Catholic University of Korea to complete a clinical fellowship. He then worked as a full-time instructor and assistant professor in the university’s Department of Neurology from 2001 to 2005.
Dr. Choi completed a clinical fellowship for cerebro-vascular disease in the Calgary Stroke Program at Foothills Hospital in Calgary, Alberta, Canada, before serving as a neurology resident in the Department of Neurology and Psychiatry at St. Louis University Hospital in St. Louis, Missouri.
His work has been published in the Journal of Neuroimaging, Stroke, the Journal of Clinical Neuroscience, Neuro-ophthalmology, Brain Research, Clinical Neurology and Neurosurgery, the Journal of Korean Medical Science, and the Korean Journal of Neurology.
Dr. Choi joined Olympia Neurology in 2011.
Leo W. Kesting, M.D.
Dr. Kesting earned his medical degree at the University of Washington School of Medicine and completed both an internship and residency in neurology at Madigan Army Medical Center in Tacoma, Washington.
He is a member of the American Academy of Neurology and earned board certification in neurology in 1997.
He worked previously at Landstuhl Regional Medical Center in Landstuhl, Germany, before joining Olympia Neurology in 2000.
Jon C. Kooiker, M.D.
Dr. Kooiker attended the Indiana University School of Medicine. He completed his internship at St. Louis University School of Medicine and his fellowship at the University Washington School of Medicine. He also served as a General Medical Officer in the United States Air Force
Dr. Kooiker earned board certification in 1978 and is a member of the American Academy of Neurology and a member and past president of the Puget Sound Neurological Society.
He has been published in Neurology and the Journal of Neurosurgery and contributed to a book titled Clinical Procedures in Emergency Medicine.
Zhongzeng (Jonathan) Li, M.D. Ph.D.
Dr. Li attended Qingdao University Medical College and later earned a Ph.D. in physiology and neurosciences at the University of South Florida. He completed his neurology residency training at the Medical University of South Carolina (MUSC). He also completed one-year fellowship training in clinical neurophysiology (EEG, EMG, Nerve Conduction Study) at MUSC before joining Olympia Neurology in 2006.
Dr. Li is board certified in electrodiagnostic medicine and neurology and is a member of the American Academy of Neurology and the American Association of Neuromuscular and Electrodiagnostic Medicine.
Dr Li practices general neurology with special interest in neuromuscular disorders including nerve conduction study and EMG, EEG, and headache disorders.
He has published research studies in the following scientific journals: Epilepsy and Behavior, Pediatric Neurology, the Journal of Neurophysiology, and Photochemistry & Photobiology.
James R. McDowell, M.D.
Dr. McDowell attended Medical School at the University of Michigan and completed his residency in neurology at the University of Washington Medical Center. He is board certified in both neurology and vascular neurology.
Dr. McDowell is a member of the American Stroke Association, the American Academy of Neurology, the Puget Sound Neurological Society, and the North Pacific Society of Psychiatry and Neurology.
He has been published in Neurology, Pediatric Neurosurgery, the Journal of Neurosurgery, and the Western Journal of Medicine.
Irina Ramneantu, M.D.
Dr. Ramneantu attended medical school at the University of Medicine and Pharmacy, Carol Davilla in Bucharest, Romania. She completed her residency in neurology at Northwest University and a fellowship in neuromuscular disease and electrodiagnostic medicine at Washington University in St. Louis. She joined Olympia Neurology in 2009.
She is board certified in neurology, clinical neurophysiology, and electrodiagnostic medicine and is a member of the American Academy of Neurology and the American Association of Neuromuscular and Electrodiagnostic Medicine.
She has been published in Muscle & Nerve, Neurology, and the Journal of Neurology, Neurosurgery, and Psychiatry. Dr. Ramneantu practiced previously at San Juan Regional Hospital in Farmington, New Mexico.
Dr. Ramneantu was born in Romania. She and her husband have two young daughters. She enjoys hiking, swimming, and photography.