Colin McCannel is an Ophthalmology physician affiliated with Ronald Reagan UCLA Medical Center. OpenAlex indexes 148 publications with 5,762 citations (h-index 36).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingIndustry 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? →
Medicare prescribing footprint (2023)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Cancer & immunology
47.5%Vascular Endothelial Growth Factor Inhibitor47.5%Aflibercept100%Part B, office-administered≥26 patientsSensory organs
44.1%Corticosteroid19.2%Prednisolone Acetate100%Part D≥62 patientsalpha-Adrenergic Agonist12.6%Brimonidine Tartrate84%Brimonidine Tartrate-Timolol16%Part D<11 patients+ 3 more classes in this area
Cardiovascular
4.6%Beta blocker4.6%Timolol Maleate100%Part D≥12 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Prospective, Randomized Trial Comparing Simulator-based versus Traditional Teaching of Direct Ophthalmoscopy for Medical Students
American Journal of Ophthalmology
2021 - Glaucoma After Iodine-125 Brachytherapy for Uveal Melanoma: Incidence and Risk Factors
Journal of Glaucoma
2019 - Continuous Curvilinear Capsulorhexis Training and Non-Rhexis Related Vitreous Loss: The Specificity of Virtual Reality Simulator Surgical Training (An American Ophthalmological Society Thesis).
PubMed
2017
Similar KOLs
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Ariel Takayanagi, DO
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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.”