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Timothy Ryken, MD, Neurosurgery, Wheat Ridge, CO

TimothyCRykenMDMS, FACS, FAANS

Neurosurgery Wheat Ridge, CO

Brain & Spinal Tumor, Neurosurgical Spine Surgery, Neurotrauma

Professor, Department of Neurological Surgery

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.

Education & Training

  • University of Iowa College of Public Health
    University of Iowa College of Public HealthMS, 2004 - 2007
  • University of Cambridge
    University of CambridgeFellowship, 1995 - 1996
  • University of Iowa Hospitals and Clinics
    University of Iowa Hospitals and ClinicsChief Residency, Neurological Surgery, 1994 - 1995
  • University of Iowa Hospitals and Clinics
    University of Iowa Hospitals and ClinicsResidency, Neurological Surgery, 1990 - 1995
  • University of Iowa Hospitals and Clinics
    University of Iowa Hospitals and ClinicsInternship, Surgery, 1989 - 1990
  • University of Wyoming College of Health Sciences
    University of Wyoming College of Health SciencesIntern, Family Medicine, 1988 - 1989
  • University of Iowa Roy J. and Lucille A. Carver College of Medicine
    University of Iowa Roy J. and Lucille A. Carver College of MedicineClass of 1988
  • Iowa State University
    Iowa State UniversityBS, Biochemistry, 1980 - 1984

Certifications & Licensure

  • CO State Medical License
    CO State Medical License 2022 - 2025
  • IA State Medical License
    IA State Medical License 1989 - 2025
  • VT State Medical License
    VT State Medical License 2020 - 2024
  • WA State Medical License
    WA State Medical License 2021 - 2024
  • NH State Medical License
    NH State Medical License 2017 - 2023
  • ME State Medical License
    ME State Medical License 2020 - 2021
  • KS State Medical License
    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

Publications & Presentations

PubMed

Journal Articles

  • CD271+ Cells Are Diagnostic and Prognostic and Exhibit Elevated MAPK Activity in SHH Medulloblastoma  
    Timothy 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

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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 Mend
    Dartmouth-Hitchcock Health Finances Continue to MendJune 20th, 2021
  • Conroy Paid Less Than Predecessor
    Conroy Paid Less Than PredecessorSeptember 6th, 2020
  • Dartmouth-Hitchcock Uses Robotic Surgical System for Spinal Operations
    Dartmouth-Hitchcock Uses Robotic Surgical System for Spinal OperationsAugust 12th, 2019
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Professional Memberships

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 PPO
    Kaiser 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