{"schema_version":"1","generated_at":"2026-10-28T12:47:18.272Z","data_as_of":null,"url":"https://www.findmykol.com/kol/leslie-ballas","json_url":"https://www.findmykol.com/kol/leslie-ballas/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"leslie-ballas","name":"Leslie Ballas","credential":"MD","specialty":"Radiation Oncology","specialty_raw":"Radiation Oncology","therapeutic_area":"Oncology","therapeutic_areas":["Oncology"],"institution":"Cedars-Sinai Medical Center","institution_url":"https://www.findmykol.com/institution/cedars-sinai-medical-center","city":"Los Angeles","state":"CA","region":{"label":"West","url":"https://www.findmykol.com/region/west"}},"identifiers":{"npi":"1235388901","orcid":"0000-0001-5510-1691","openalex":"A5077358252"},"summary":"Leslie Ballas is an Oncology physician affiliated with Cedars-Sinai Medical Center. 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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":["funding","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":{"trials":1,"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":"2022-07-14","provider_certified":"2022-07-14","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. 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