{"schema_version":"1","generated_at":"2026-10-28T21:56:31.744Z","data_as_of":null,"url":"https://www.findmykol.com/kol/john-marshall-dc","json_url":"https://www.findmykol.com/kol/john-marshall-dc/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"john-marshall-dc","name":"John Marshall","specialty":"Hematology / Oncology","specialty_raw":"Hematology & Oncology","therapeutic_area":"Oncology","therapeutic_areas":["Oncology"],"institution":"Georgetown University","institution_url":"https://www.findmykol.com/institution/georgetown-university","city":"Washington","state":"DC","region":{"label":"Northeast","url":"https://www.findmykol.com/region/northeast"}},"identifiers":{"npi":"1316935844"},"summary":"John Marshall is an Oncology physician affiliated with Georgetown University. ClinicalTrials.gov lists 17 registered studies matched to this name.","overview":null,"focus":{"indications":[],"research_topics":["Oncology"]},"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":17,"shown":3,"withheld":14,"matched_by":"investigator name, confirmed against institution and geography","rows":[{"nct":"NCT05482516","title":"Evaluating Novel Therapies in ctDNA Positive GI Cancers","phase":"PHASE3","status":"RECRUITING","role":"Overall official","sponsor":"Georgetown University","source_url":"https://clinicaltrials.gov/study/NCT05482516","trial_url":"https://www.findmykol.com/trial/NCT05482516"},{"nct":"NCT04306367","title":"Study of Pembrolizumab and Olaparib in Bile Duct Cancer","phase":"PHASE2","status":"COMPLETED","role":"Overall official","sponsor":"Georgetown University","source_url":"https://clinicaltrials.gov/study/NCT04306367","trial_url":"https://www.findmykol.com/trial/NCT04306367"},{"nct":"NCT02402036","title":"A Biomarker Study in Patients Getting Regorafenib for Metastatic Colorectal Cancer","phase":"PHASE2","status":"TERMINATED","role":"Overall official","sponsor":"Georgetown University","source_url":"https://clinicaltrials.gov/study/NCT02402036","trial_url":"https://www.findmykol.com/trial/NCT02402036"}],"source":"trials"},"payments":{"company_count":26,"program_years":{"first":2021,"last":null},"rows_total":45,"shown":3,"withheld":42,"rows":[{"payer":"TAIHO ONCOLOGY, INC.","program_year":2025,"amount_usd":39107.49,"payment_count":32,"source_url":"https://openpaymentsdata.cms.gov/search?query=1316935844"},{"payer":"PFIZER INC.","program_year":2025,"amount_usd":9408.47,"payment_count":6,"source_url":"https://openpaymentsdata.cms.gov/search?query=1316935844"},{"payer":"Takeda Pharmaceuticals U.S.A., Inc.","program_year":2025,"amount_usd":2782.5,"payment_count":1,"source_url":"https://openpaymentsdata.cms.gov/search?query=1316935844"}],"record_url":"https://openpaymentsdata.cms.gov/search?query=1316935844","source":"payments"},"funding":{"award_count":6,"fiscal_years":{"first":1996,"last":2009},"rows_total":38,"shown":3,"withheld":35,"matched_by":"principal investigator name at an organization in the practice state","rows":[{"project":"M01RR023942","title":"CLINICAL TRIAL: PHASE 1 CLINICAL TRIAL OF DAILY ORAL GLEEVE AND ONE HOUR WEEKLY","fiscal_year":2009,"amount_usd":"24172","organization":"GEORGETOWN UNIVERSITY","source_url":"https://reporter.nih.gov/quickSearch/M01RR023942"},{"project":"M01RR023942","title":"CLINICAL TRIAL: PHASE 1 CLINICAL TRIAL OF DAILY ORAL GLEEVE AND ONE HOUR WEEKLY","fiscal_year":2008,"amount_usd":"99168","organization":"GEORGETOWN UNIVERSITY","source_url":"https://reporter.nih.gov/quickSearch/M01RR023942"},{"project":"M01RR023942","title":"A PHASE I OPEN LABEL SAFETY AND PHARMACOKINETIC STUDY OF SGT-53","fiscal_year":2008,"amount_usd":"1428","organization":"GEORGETOWN UNIVERSITY","source_url":"https://reporter.nih.gov/quickSearch/M01RR023942"}],"source":"grants"},"contact":{"address_1":"3800 RESERVOIR RD NW","city":"Washington","state":"DC","zip":"200072113","phone":"202-444-2223","source_url":"https://npiregistry.cms.hhs.gov/provider-view/1316935844","source":"identity"},"similar":[{"name":"Claudine Isaacs","slug":"claudine-isaacs","institution":"Georgetown University","specialty":"Hematology / Oncology","url":"https://www.findmykol.com/kol/claudine-isaacs","json_url":"https://www.findmykol.com/kol/claudine-isaacs/profile.json"},{"name":"Jessica Ailani","slug":"jessica-ailani","institution":"Georgetown University","specialty":"Neurology","url":"https://www.findmykol.com/kol/jessica-ailani","json_url":"https://www.findmykol.com/kol/jessica-ailani/profile.json"},{"name":"Catherine Broome","slug":"catherine-broome","institution":"Georgetown University","specialty":"Hematology / Oncology","url":"https://www.findmykol.com/kol/catherine-broome","json_url":"https://www.findmykol.com/kol/catherine-broome/profile.json"},{"name":"Virginia Steen","slug":"virginia-steen","institution":"Georgetown University","specialty":"Rheumatology","url":"https://www.findmykol.com/kol/virginia-steen","json_url":"https://www.findmykol.com/kol/virginia-steen/profile.json"},{"name":"Carl June","slug":"carl-june","institution":"University of Pennsylvania","specialty":"Medical Oncology","url":"https://www.findmykol.com/kol/carl-june","json_url":"https://www.findmykol.com/kol/carl-june/profile.json"},{"name":"Rainer Storb","slug":"rainer-storb","institution":"University of Washington","specialty":"Hematology / Oncology","url":"https://www.findmykol.com/kol/rainer-storb","json_url":"https://www.findmykol.com/kol/rainer-storb/profile.json"},{"name":"Christina Fitzmaurice","slug":"christina-fitzmaurice","specialty":"Hematology / Oncology","url":"https://www.findmykol.com/kol/christina-fitzmaurice","json_url":"https://www.findmykol.com/kol/christina-fitzmaurice/profile.json"},{"name":"Larry Norton","slug":"larry-norton","institution":"Memorial Sloan Kettering Cancer Center","specialty":"Medical Oncology","url":"https://www.findmykol.com/kol/larry-norton","json_url":"https://www.findmykol.com/kol/larry-norton/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":["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":14,"payments":42,"funding":35}},"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":"2012-03-09","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"},"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"}