Overview of Dr. Ryken
Dr. Timothy Ryken is a neurosurgeon currently residing in Colorado and is the former Chief of Neurosurgery at Dartmouth-Hitchcock Medical Center and currently Professor Adjunct with the Department of Neurosurgery University of Iowa Health Care. He received his medical degree from University of Iowa Roy J. and Lucille A. Carver College of Medicine completed residency in Neurosurgery at the University of Iowa and is a AANS VanWagenen Scholar. He has been in practice over 30 years. He specializes in brain & spinal tumor, neurosurgical spine surgery, and neurotrauma and is experienced in oncology, neurosurgical oncology, neurosurgical spine surgery, epidemiology. He has more than 200 publications, over 1500 citations and a Research Gate H score of over 65.
Office
12905 West 40th Avenue
Suite 415
Wheat Ridge, CO 80033Fax+1 303-403-6240
Education & Training
- University of Iowa College of Public HealthMS, 2004 - 2007
- University of CambridgeFellowship, 1995 - 1996
- University of Iowa Hospitals and ClinicsChief Residency, Neurological Surgery, 1994 - 1995
- University of Iowa Hospitals and ClinicsResidency, Neurological Surgery, 1990 - 1995
- University of Iowa Hospitals and ClinicsInternship, Surgery, 1989 - 1990
- University of Wyoming College of Health SciencesIntern, Family Medicine, 1988 - 1989
- University of Iowa Roy J. and Lucille A. Carver College of MedicineClass of 1988
- Iowa State UniversityBS, Biochemistry, 1980 - 1984
Certifications & Licensure
- CO State Medical License 2022 - 2025
- IA State Medical License 1989 - 2025
- VT State Medical License 2020 - 2024
- WA State Medical License 2021 - 2024
- NH State Medical License 2017 - 2023
- ME State Medical License 2020 - 2021
- KS State Medical License 2015 - 2017
- American Board of Neurological Surgery Neurological Surgery
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Awards, Honors, & Recognition
- AANS VanWagenen Fellow 1995-1996
- America's Top Doctors Castle Connolly, 2007-2014
- America's Top Doctors for Cancer Castle Connolly, 2006-2013
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Clinical Trials
- Gliadel Wafers and Temodar in the Treatment of Glioblastoma Multiforme Start of enrollment: 2005 Oct 01
- Natural History of Brain Function, Quality of Life, and Seizure Control in Patients With Brain Tumor Who Have Undergone Surgery Start of enrollment: 2011 Oct 01
Publications & Presentations
PubMed
- 657 citationsA novel classification system for spinal instability in neoplastic disease: an evidence-based approach and expert consensus from the Spine Oncology Study Group.Charles G. Fisher, Christian P. DiPaola, Timothy C. Ryken, Mark H. Bilsky, Christopher I. Shaffrey
Spine. 2010-10-15 - 329 citationsSpinal Instability Neoplastic Score: An Analysis of Reliability and Validity From the Spine Oncology Study GroupDaryl R. Fourney, Evan Frangou, Timothy C. Ryken, Christian P. DiPaola, Christopher I. Shaffrey
Journal of Clinical Oncology. 2011-08-01 - 38 citationsCongress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines for the Treatment of Adults With Metastatic Brain Tumors: Executive SummaryJeffrey J. Olson, Steven N. Kalkanis, Timothy C. Ryken
Neurosurgery. 2019-03-01
Journal Articles
- CD271+ Cells Are Diagnostic and Prognostic and Exhibit Elevated MAPK Activity in SHH MedulloblastomaTimothy Ryken, MD, Clinical Cancer Research
- Suppression of glioma growth in vitro and in vivo by glia maturation factor.Lim R, Hicklin DJ, Ryken TC, Han X, Kang-Nian L, Miller JF, Baggenstoss BA, Cancer Research 46(10):5241-5247
- Endogenous immunoreactive glia maturation factor-like molecule in astrocytes and glioma cells.Lim R, Hicklin DJ, Ryken TC, Miller JF, Brain Research 430(1):49-57
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Books/Book Chapters
Abstracts/Posters
- Infratentorial stereotactic biopsy.Ryken TC, Hitchon PW, Roach RM, Traynelis VC, Iowa Midwest Neurosurgical Society Semi-Annual Meeting, Omaha, NE
- Stereotactic approach to brain stem lesions.Ryken TC, Hitchon PW, University of Iowa Department of Surgery Residents and Fellows Research Day, Iowa City, IA
- Cervical lipomas.Ryken TC, Menezes AH, Iowa Midwest Neurosurgical Society Semi-Annual Meeting, Des Moines, IA
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Lectures
- Somatosensory systems.Neurosurgical Grand Rounds, University of Iowa, Iowa City, IA
- Neurosurgical considerations in pediatric trauma.Pediatric Neurosurgery Conference, Neuroscience Nursing, University of Iowa, Iowa City, IA
- Biomechanics of anterior cervical plates.Iowa-Midwest Neurosurgical Society Semiannual Meeting, Omaha, NE
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Press Mentions
- Dartmouth-Hitchcock Health Finances Continue to MendJune 20th, 2021
- Conroy Paid Less Than PredecessorSeptember 6th, 2020
- Dartmouth-Hitchcock Uses Robotic Surgical System for Spinal OperationsAugust 12th, 2019
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Professional Memberships
- Fellow
- Member
- Member
- Fellow
Insurance Accepted
- Aetna Choice POS II
BCBS Blue Card PPO
BCBS Illinois PPO
CIGNA Open Access
CIGNA PPO
First Health PPO
Great West PPO
Humana ChoiceCare Network PPOKaiser Permanente
Multiplan PHCS PPO
Multiplan PPO
Oxford Health Freedom
Oxford Health Liberty
United Healthcare - Direct Choice Plus POS
United Healthcare - Direct Options PPO
Wellmark Alliance Select - Please verify your coverage with the provider's office directly when scheduling an appointment
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