Timothy Ryken is a Neurology physician affiliated with University of Iowa Hospitals and Clinics. OpenAlex indexes 243 publications with 15,989 citations (h-index 70); ClinicalTrials.gov lists 1 registered study matched to this name. By OpenAlex citation count, this profile ranks in the top 5% of Neurological Surgery profiles in the findmyKOL directory.
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingClinical trials
- Gliadel Wafers and Temodar in the Treatment of Glioblastoma Multiforme
Sponsor: University of Iowa
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
1 company with payments on record in CMS Open Payments (2021 onward), matched to this physician's NPI. The itemized breakdown by company, amount and year is part of the full profile. Why? →
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- The role of neuropathology in the management of patients with diffuse low grade glioma
Journal of Neuro-Oncology
2015 - The role of surgery in the management of patients with diffuse low grade glioma
Journal of Neuro-Oncology
2015 - Survival outcomes and safety of carmustine wafers in the treatment of high-grade gliomas: a meta-analysis
Journal of Neuro-Oncology
2015
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University of Iowa Hospitals and Clinics
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Satoshi Yamaguchi, MD
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Bruce Miller, MD
University of California, San Francisco (UCSF)
Bradley Boeve, MD
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Richard Lipton, MD
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments, shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”