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Timothy Ryken, MD

Timothy Ryken, MD

Neurosurgery Waterloo, IA

Director and Chair of Neurological Surgery, Iowa Spine and Brain Institute, Waterloo Iowa

Office Address

Office Map
  • Iowa Spine and Brain Institute
    2710 St. Francis Drive, Suite 110
    Waterloo, IA 50702
    Phone: (319) 272-5000

Dr. Ryken's Clinical Specialties & Interests

  • Neurosurgery: General Neurosurgery, Neurosurgical Spine Surgery, Brain & Spinal Tumor
  • Clinical Interests: Neurosurgery; Spine; Epidemiology; Medical Oncology

Dr. Ryken's Faculty Appointments & Work History

  • ProfessorUniversity of Iowa College of Medicine
    Iowa City, IA
    Assistant Professor (1998-2002); Associate Professor (2002-2009); Neurosurgical Consultant (2006-2009); Adjunct Associate Professor (2012-present)
  • Chair and Co-director, Staff NeurosurgeonIowa Brain and Spine Institute
    Waterloo, IA
  • Assistant ProfessorState University of New York
    Syracuse, NY
  • General PhysicianState of Iowa, Department of Medical Classification
    Iowa City, IA
  • Compensation and Pension ExaminerVeterans Administration Hospital
    Iowa City, IA
  • ProfessorUniversity of Iowa Hospital and Clinics
    Iowa City, IA
    Phlebotomist (1984-1985); Research Assistant (1985-1986)

Dr. Ryken's Education & Medical Training

  • University of Iowa College of Public HealthUniversity of Iowa College of Public HealthOther Training, MS
  • University of CambridgeUniversity of CambridgeOther Training, Fellowship
  • University of Iowa Hospitals and ClinicsUniversity of Iowa Hospitals and ClinicsChief Residency, Neurological Surgery
  • University of Iowa Hospitals and ClinicsUniversity of Iowa Hospitals and ClinicsResidency, Neurological Surgery
  • University of Iowa Hospitals and ClinicsUniversity of Iowa Hospitals and ClinicsInternship, General Surgery
  • University Wy Coll Health SciUniversity Wy Coll Health SciChief Residency, Family Practice
  • University of California at San FranciscoUniversity of California at San FranciscoResidency, General Surgery
  • U of IA Coll of MedUniversity of Iowa Carver College of MedicineMedical School
  • Iowa State UniversityIowa State UniversityOther Training, BS, Biochemistry

Dr. Ryken's Certifications & Licensure

  • IA State Medical LicenseIA State Medical License1991 - 2015
  • American Board of Neurological SurgeryAmerican Board of Neurological SurgeryNeurological Surgery, 1998

Dr. Ryken's Awards, Honors, & Recognition

  • University of Iowa College of Medicine Student ResearchOutstanding Oral PresentationUniversity of Iowa College of Medicine Student Research, 2007
  • AANS/CNS Joint Section on TumorsMentor - PreussAANS/CNS Joint Section on Tumors, 1999
  • Mentor - AANSRF1999
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Dr. Ryken's Publications & Presentations

PubMed | Citations by Web of Science®

Journal Articles

  • Clinical prognostic indicators of surgical outcome in cervical spondylotic myelopathy.Holly LT, Matz PG, Anderson PA, Groff MW, Heary RF, Kaiser MG, Mummaneni PV, Ryken TC, Choudhri TF, Vresilovic EJ, Resnick DK, J Neurosurg Spine. 2009 Aug;11(2):112-8. PubMed PMID: 19769490
  • The natural history of cervical spondylotic myelopathy.Matz PG, Anderson PA, Holly LT, Groff MW, Heary RF, Kaiser MG, Mummaneni PV, Ryken TC, Choudhri TF, Vresilovic EJ, Resnick DK, J Neurosurg Spine. 2009 Aug;11(2):104-11. PubMed PMID:19769489
  • DNA methyltransferase-mediated transcriptional silencing in malignant glioma: a combined whole-genome microarray and promoter array analysis.Foltz G, Yoon JG, Lee H, Ryken TC, Sibenaller Z, Ehrich M, Hood L, Madan A, Oncogene. 2009 Jul 23;28(29):2667-77. Epub 2009 May 25. PubMed PMID: 19465937
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Books/Book Chapters

  • Neurosurgical Operative Atlas. Vol. 2Chapter: Surgical management of anterior communicating artery aneurysmsPage 273 - 281
    Ryken TC, Loftus CM
    Editors: Wilkins R.Williams and Wilkins, Baltimore, MD
    Edition 4,
  • Neurosurgical Operative Atlas. Vol 3Chapter: Surgical Management of Cerebral AbscessPage 449 - 457
    Ryken TC, Loftus CM
    Editors: Wilkins R.William and Wilkins, Baltimore, MD
    Edition 6,
  • Intraoperative Monitoring Techniques in Neurosurgery.Chapter: Intraoperative electrical and manometric monitoring techniques in lumbosacral surgeryPage 257 - 268
    Ryken TC, Menezes AH
    Editors: Loftus CM, Traynelis VC.McGraw-Hill, New York
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Abstracts/Posters

  • Fas upregulation results in increased survival of rats with intracranial malignant glioma.Frankel B, Longo S, Kyle M, Canute GW, Ryken TC, Society for Neuroscience Abstracts, Vol. 25:2086
  • Three dimensional culture of genetically modified glioma cell lines.Ryken TC, Housden ES, Frankel BM, Watts C, Sofroniew MV, Traynelis VC, Congress of Neurological Surgeons 46th Annual Meeting, Montreal, Canada
  • Fas ligand induced cytotoxicity in human malignant glioma.Lennarson PJ, Frankel B, Julien T, Ryken TC, NeuroOncology 2(4):262
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Lectures

  • Implantable Chemotherapy.Canadian Approval, Montreal, CA
  • Biomechanics of subaxial posterior cervical stabilization.Congress of Neurological Surgeons 46th Annual Meeting, Montreal, Canada
  • Ten Year Experience with Implantable Local Therapy for Malignant Brain Tumors.Glasgow, Scotland UK
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Hospital Affiliations

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

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