{"schema_version":"1","generated_at":"2026-10-29T23:25:40.571Z","data_as_of":null,"url":"https://www.findmykol.com/kol/william-stewart-tx","json_url":"https://www.findmykol.com/kol/william-stewart-tx/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"william-stewart-tx","name":"William Stewart","credential":"MD","specialty":"Ophthalmology","specialty_raw":"Ophthalmology","therapeutic_area":"Ophthalmology","therapeutic_areas":["Ophthalmology"],"city":"Houston","state":"TX","region":{"label":"South Central","url":"https://www.findmykol.com/region/south-central"}},"identifiers":{"npi":"1497740161"},"summary":"William Stewart is an Ophthalmology physician. ClinicalTrials.gov lists 6 registered studies matched to this name.","overview":null,"focus":{"indications":[],"research_topics":["Ophthalmology"]},"scholarship":{"note":"Research metrics are not shown for this record: either no confident publication match for this name, or more than one clinician shares the matched author record."},"trials":{"count":6,"shown":1,"withheld":0,"matched_by":"investigator name, confirmed against institution and geography","rows":[{"nct":"NCT00273455","title":"Lumigan Versus Cosopt","phase":"PHASE4","status":"COMPLETED","role":"Overall official","sponsor":"Pharmaceutical Research Network","source_url":"https://clinicaltrials.gov/study/NCT00273455","trial_url":"https://www.findmykol.com/trial/NCT00273455"}],"source":"trials"},"payments":{"company_count":13,"program_years":{"first":2021,"last":null},"rows_total":22,"shown":3,"withheld":19,"rows":[{"payer":"Alcon Vision LLC","program_year":2025,"amount_usd":299.01,"payment_count":5,"source_url":"https://openpaymentsdata.cms.gov/search?query=1497740161"},{"payer":"Alcon Vision LLC","program_year":2024,"amount_usd":53.03,"payment_count":2,"source_url":"https://openpaymentsdata.cms.gov/search?query=1497740161"},{"payer":"Johnson & Johnson Surgical Vision, Inc.","program_year":2024,"amount_usd":33.33,"payment_count":1,"source_url":"https://openpaymentsdata.cms.gov/search?query=1497740161"}],"record_url":"https://openpaymentsdata.cms.gov/search?query=1497740161","source":"payments"},"prescribing":{"data_year":2024,"areas_total":1,"areas_shown":1,"areas":[{"area":"Sensory organs","share_pct":100,"classes_total":3,"classes":[{"class":"Corticosteroids, plain","setting":"prescribed","share_pct":86.3,"drugs":[{"name":"Difluprednate","share_pct":100}],"max_beneficiaries":190},{"class":"Prostaglandin Analog","setting":"prescribed","share_pct":9.4,"drugs":[{"name":"Latanoprost","share_pct":100}],"max_beneficiaries":null}]}],"care_setting":{"dominant":"office","data_year":2024,"office_pct":70.5,"facility_pct":29.5},"source":"medicare"},"contact":{"address_1":"1415 NORTH LOOP W STE 400","city":"Houston","state":"TX","zip":"770081646","phone":"713-869-6400","source_url":"https://npiregistry.cms.hhs.gov/provider-view/1497740161","source":"identity"},"similar":[{"name":"Emily Chew","slug":"emily-chew","institution":"National Eye Institute","specialty":"Ophthalmology","url":"https://www.findmykol.com/kol/emily-chew","json_url":"https://www.findmykol.com/kol/emily-chew/profile.json"},{"name":"Robert Weinreb","slug":"robert-weinreb","institution":"University of California San Diego","specialty":"Ophthalmology","url":"https://www.findmykol.com/kol/robert-weinreb","json_url":"https://www.findmykol.com/kol/robert-weinreb/profile.json"},{"name":"Harry Quigley","slug":"harry-quigley","institution":"Johns Hopkins University School of Medicine","specialty":"Ophthalmology","url":"https://www.findmykol.com/kol/harry-quigley","json_url":"https://www.findmykol.com/kol/harry-quigley/profile.json"},{"name":"Joel Schuman","slug":"joel-schuman","institution":"Wills Eye Hospital","specialty":"Ophthalmology","url":"https://www.findmykol.com/kol/joel-schuman","json_url":"https://www.findmykol.com/kol/joel-schuman/profile.json"}],"coverage":{"note":"A basic record from the physician directory. 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":{"payments":19}},"sources":{"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":"2021-03-22","provider_certified":"2021-03-22","collected_at":"2026-10-27T00:00:00.000Z"},"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"},"medicare":{"name":"CMS Medicare Part D Prescribers and Part B","url":"https://data.cms.gov/provider-summary-by-type-of-service","provides":"Share of this prescriber's Medicare fee-for-service prescribing by drug class and therapeutic area, classified with WHO ATC and NLM RxClass","disclaimer":"Proportions of the prescriber's own classified prescribing, never patient counts or dollar amounts. Fee-for-service only; CMS publishes about 17 months after the fact and suppresses counts of ten patients or fewer.","data_year":2024}},"methodology_url":"https://www.findmykol.com/about#methodology"}