{"schema_version":"1","generated_at":"2026-10-29T18:00:14.057Z","data_as_of":null,"url":"https://www.findmykol.com/kol/john-timmerman","json_url":"https://www.findmykol.com/kol/john-timmerman/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"john-timmerman","name":"John Timmerman","credential":"MD","specialty":"Hematology / Oncology","specialty_raw":"Hematology & Oncology","therapeutic_area":"Oncology","therapeutic_areas":["Oncology"],"institution":"University of California, Los Angeles","institution_url":"https://www.findmykol.com/institution/university-of-california-los-angeles","city":"Los Angeles","state":"CA","region":{"label":"West","url":"https://www.findmykol.com/region/west"}},"identifiers":{"npi":"1891715090","orcid":"0000-0003-4104-8943","openalex":"A5066129729"},"summary":"John Timmerman is an Oncology physician affiliated with University of California, Los Angeles. OpenAlex indexes 305 publications with 22,124 citations (h-index 42); ClinicalTrials.gov lists 1 registered study matched to this name. 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California, Los Angeles","specialty":"Hematology / Oncology","url":"https://www.findmykol.com/kol/dennis-slamon","json_url":"https://www.findmykol.com/kol/dennis-slamon/profile.json"},{"name":"Beth Karlan","slug":"beth-karlan","institution":"University of California, Los Angeles","specialty":"Gynecologic Oncology","url":"https://www.findmykol.com/kol/beth-karlan","json_url":"https://www.findmykol.com/kol/beth-karlan/profile.json"},{"name":"Richard Casaburi","slug":"richard-casaburi","institution":"University of California, Los Angeles","specialty":"Pulmonary Disease","url":"https://www.findmykol.com/kol/richard-casaburi","json_url":"https://www.findmykol.com/kol/richard-casaburi/profile.json"},{"name":"Jerome Engel","slug":"jerome-engel","institution":"University of California, Los Angeles","specialty":"Neurology","url":"https://www.findmykol.com/kol/jerome-engel","json_url":"https://www.findmykol.com/kol/jerome-engel/profile.json"},{"name":"Carl 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Sections absent here were not yet checked for this person, so absence means not yet looked, never none found.","not_yet_checked":["congress","network","presence","recognition"]},"not_included":{"note":"This document is the public layer: neutral facts cited to their source. Judgments (influence tier, archetype, trajectory commentary) and the itemized rows past each section's public teaser are account features and are not served here or to crawlers.","withheld_rows":{"payments":1,"funding":11,"publications":45}},"sources":{"orcid":{"name":"ORCID","url":"https://orcid.org","provides":"The verified researcher identity that anchors authorship"},"identity":{"name":"NPPES (CMS)","url":"https://npiregistry.cms.hhs.gov","provides":"Identity, specialty and practice location for every U.S. clinician","coverage":"Practice location (not mailing) from the NPPES record","record_last_updated":"2013-01-23","collected_at":"2026-10-27T00:00:00.000Z"},"works":{"name":"OpenAlex","url":"https://openalex.org","provides":"Citations, h-index, research topics, most-cited works and congress abstracts"},"trials":{"name":"ClinicalTrials.gov","url":"https://clinicaltrials.gov","provides":"Investigator roles on registered clinical studies"},"payments":{"name":"CMS Open Payments","url":"https://openpaymentsdata.cms.gov","provides":"Industry payments reported to CMS, by company and program year","disclaimer":"Payments are publicly reported to CMS. Their existence does not imply wrongdoing; CMS does not interpret these data.","coverage":"Program years 2021 onward"},"grants":{"name":"NIH RePORTER","url":"https://reporter.nih.gov","provides":"Federally funded research awards, by fiscal year"}},"methodology_url":"https://www.findmykol.com/about#methodology"}