Medical Directors
Anna Wanahita, M.D., Medical Director, Stroke Service
Patrick P. Han, M.D., Medical Director, Vascular Neurosurgery
Director, ICU Hospitalists
James V. Rooks, M.D.
Vice Directors and Hospitalists
Justin P. Thankachan, M.D.
David N. Gilbert, M.D.
Interventional Radiology
Thomas W. White, M.D.
Neuroradiology
Rodney G. Shaffer, M.D.
Emergency Department
Charles A. Farmer, M.D.
Physical Medicine & Rehabilitation Services
Annie Venugopal, M.D.
Neurology/Electrophysiology
Todd B. Dunaway, M.D.
Neurology and Neuro-Psychiatry
Ralph W. Richter, M.D.
Physician Assistant
Sonja Boswell, MHS, PA-C
Program Coordinator
Lyndsay Swindell, RN
Anna Wanahita, M.D.
Neurology, Vascular
TRAINING
• Internship, Internal Medicine, University of Louisville, KY
• Residency, Neurology, University of Louisville, KY
FELLOWSHIPS
• University of Louisville, KY
PROFESSIONAL MEMBERSHIPS
• American Medical Association
• American Academy of Neurology
• American Heart Association
• American Stroke Association
• Society of Vascular and Interventional Neurology
APPOINTMENTS AND POSITIONS
Co-Medical Director, St. John Stroke Center
Medical Director, Stroke Service
Patrick P. Han, M.D.
Neurosurgery
TRAINING
• University of Kansas Medical School, 1997
• Internship, Phoenix Integrated Surgical Residency,
1998
• Residency, Barrow Neurological Institute,
Phoenix, AZ, 1998
FELLOWSHIPS
• Barrow Neurological Institute
• Cerebrovascular and skull-based surgery
• Endovascular neurosurgery
• Complex spinal surgery
ADVANCED STUDIES
• CyberKnife radiosurgery
SUBSPECIALTY INTERESTS
• Cerebrovascular and skull-based surgery
• Aneurysm clipping
• Carotid endarterectomy
• Endovascular neurosurgery
• Coil embolization of brain aneurysm
• Carotid stent
• Stereotactic radiosurgery
• AVM, brain tumor trigeminal neuralgia
• Complex spine surgery
• Minimally invasive spine surgery
PROFESSIONAL MEMBERSHIPS
• American Association of Neurological Surgeons
• Congress of Neurological Surgeons
• Joint Section on Cerebrovascular
• North American Skull Base Society
APPOINTMENTS AND POSITIONS
Medical Director, St. John Neuroscience Institute
Co-Medical Director, St. John Stroke Center
James V. Rooks, M.D.
Internal Medicine
EDUCATION/TRAINING
Doctorate of Medicine, University of Oklahoma College of Medicine
Residency in Internal Medicine, University of Oklahoma College of Medicine
ACADEMIC APPOINTMENTS
Associate Clinical Instructor - Department of Internal Medicine, University of Oklahoma College of Medicine, Tulsa
PROFESSIONAL MEMBERSHIPS
Member, American College of Physicians
Federal Legislative Representative
Member, Society of Hospital Medicine
APPOINTMENTS AND POSITIONS
Director of Inpatient Services – St. John Medical Center
Medical Director – St. John Physicians’ Hospitalists
ICU Management Team – St. John Medical Center
Justin P. Thankachan, M.D.
Internal Medicine
TRAINING
University of Oklahoma College of Medicine, 2005
Residency, University of Oklahoma College of Medicine, Internal Medicine
PROFESSIONAL MEMBERSHIPS
American Medical Association
American Heart Association
American Stroke Association
APPOINTMENTS AND POSITIONS
Stroke Team Hospitalist
Co-Vice Director, St. John Stroke Center
Co-Vice Director, St. John Stroke Service
David N. Gilbert, M.D.
Internal Medicine
TRAINING
University of Oklahoma College of Medicine, 2005
Residency, University of Oklahoma College of Medicine, Internal Medicine
PROFESSIONAL MEMBERSHIPS
American Medical Association
American Heart Association
American Stroke Association
APPOINTMENTS AND POSITIONS
Stroke Team Hospitalist
Co-Vice Director, St. John Stroke Center
Co-Vice Director, St. John Stroke Service
Thomas W. White, M.D.
Radiology, Interventional
Rodney G. Shaffer, M.D.
Neuroradiology
FELLOWSHIPS
Neuroradiology, Northwestern University, Chicago, IL 2006
TRAINING
Ross University School of Medicine, 2000
Residency, Diagnostic Radiology Geisinger Medical Center, 2005
Internship, Preliminary Internal Medicine, Greater Baltimore Medical Center, 2001
Post Baccalaureate, University of Houston, 1995
PROFESSIONAL MEMBERSHIPS
American College of Radiology
American Society of Neuroradiology
The Radiological Society of North America
American Medical Association
Oklahoma State Medical Association
Oklahoma State Radiological Society
Tulsa County Medical Society
APPOINTMENTS AND POSITIONS
Tulsa Radiology Associates Board Member
St. John Medical Center QA Committee
St. John Medical Center Stroke Committee
American Society of Neuroradiology
Charles A. Farmer, M.D.
Emergency Medicine
TRAINING
University of Arkansas School of Medicine, 1971
Internship, St. John Medical Center, 1972
Residency, Tulsa Medical Education Foundation, 1976
MILITARY SERVICE
United States Navy, 1972-1974
PROFESSIONAL MEMBERSHIPS
Affiliate Faculty, American Heart Association
Medical Advisory Committee, Tulsa Life Flight
APPOINTMENTS AND POSITIONS
Director, Emergency Medicine, St. John Medical Center
Clinical Associate Professor of Surgery, University of Oklahoma Medical School
President, St. John Emergency Physicians, Inc.
Annie Venugopal, M.D.
Physical Medicine and Rehabilitation
Todd B. Dunaway, M.D.
Neurology, Electrophysiology
Ralph W. Richter, M.D.
Neurology, Neuro-psychiatry
TRAINING
Columbia University, 1956
Residency, Columbia-Presbyterian Medical Center
Residency, The University of Oklahoma College of Medicine, Tulsa
PROFESSIONAL MEMBERSHIPS
American Academy of Neurology
Oklahoma State Medical Society
American Medical Association
APPOINTMENTS AND POSITIONS
Advisory Board, College of Public Health, Oklahoma University Health Sciences Center, Oklahoma City
Geriatric Neurology Task Force/Patient Care Subcommittee, American Academy of Neurology
Advisory Board, Physicians and Surgeons Club, Columbia University College of Physicians and Surgeons
Sonja Boswell, MHS, PA-C
Physician Assistant
TRAINING
Master of Health Sciences in Physician Associate Program,University of Oklahoma Health Sciences Center, 2001
University of Tulsa, Bachelor of Science in Athletic Training, 1998
PROFESSIONAL MEMBERSHIPS
Oklahoma Stroke Center Coordinator Consortium Member
American Heart Association
American Stroke Association
American Academy of Physician Assistants
Oklahoma Academy of Physician Assistants
APPOINTMENTS AND POSITIONS
Clinical Educator
Lyndsay Swindell, RN
Program Coordinator
TRAINING
University of Oklahoma College of Nursing, 2006
PROFESSIONAL MEMBERSHIPS
American Association of Neuroscience Nurses
Oklahoma Nurses Association
American Heart Association
American Stroke Association
