{"schema_version":"1","generated_at":"2026-11-04T11:03:23.272Z","data_as_of":null,"url":"https://www.findmykol.com/kol/sebastian-niezen","json_url":"https://www.findmykol.com/kol/sebastian-niezen/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"sebastian-niezen","name":"Sebastian Niezen","specialty":"Gastroenterology","specialty_raw":"Gastroenterology","therapeutic_area":"Gastroenterology","therapeutic_areas":["Gastroenterology"],"institution":"Beth Israel Deaconess Medical Center","institution_url":"https://www.findmykol.com/institution/beth-israel-deaconess-medical-center","city":"Boston","state":"MA","region":{"label":"Northeast","url":"https://www.findmykol.com/region/northeast"}},"identifiers":{"npi":"1265162291","orcid":"0000-0002-9297-8828","openalex":"A5004023037"},"summary":"Sebastian Niezen is a Gastroenterology physician affiliated with Beth Israel Deaconess Medical Center. OpenAlex indexes 30 publications with 1,122 citations (h-index 9).","overview":null,"focus":{"indications":[],"research_topics":["Gastroenterology"]},"scholarship":{"works_count":30,"cited_by_count":1122,"h_index":9,"source":"works"},"similar":[{"name":"Matcheri Keshavan","slug":"matcheri-keshavan","institution":"Beth Israel Deaconess Medical Center","specialty":"Psychiatry","url":"https://www.findmykol.com/kol/matcheri-keshavan","json_url":"https://www.findmykol.com/kol/matcheri-keshavan/profile.json"},{"name":"Connie Tsao","slug":"connie-tsao","institution":"Beth Israel Deaconess Medical Center","specialty":"Cardiovascular Disease","url":"https://www.findmykol.com/kol/connie-tsao","json_url":"https://www.findmykol.com/kol/connie-tsao/profile.json"},{"name":"Donald Cutlip","slug":"donald-cutlip","institution":"Beth Israel Deaconess Medical Center","specialty":"Interventional Cardiology","url":"https://www.findmykol.com/kol/donald-cutlip","json_url":"https://www.findmykol.com/kol/donald-cutlip/profile.json"},{"name":"Robert Yeh","slug":"robert-yeh","institution":"Beth Israel Deaconess Medical Center","specialty":"Interventional Cardiology","url":"https://www.findmykol.com/kol/robert-yeh","json_url":"https://www.findmykol.com/kol/robert-yeh/profile.json"},{"name":"Charles Rice","slug":"charles-rice","institution":"The Rockefeller University","specialty":"Gastroenterology","url":"https://www.findmykol.com/kol/charles-rice","json_url":"https://www.findmykol.com/kol/charles-rice/profile.json"},{"name":"Edward Loftus","slug":"edward-loftus","institution":"Mayo Clinic Rochester","specialty":"Gastroenterology","url":"https://www.findmykol.com/kol/edward-loftus","json_url":"https://www.findmykol.com/kol/edward-loftus/profile.json"},{"name":"Kris Kowdley","slug":"kris-kowdley","institution":"Washington State University","specialty":"Gastroenterology","url":"https://www.findmykol.com/kol/kris-kowdley","json_url":"https://www.findmykol.com/kol/kris-kowdley/profile.json"},{"name":"Bruce Sands","slug":"bruce-sands","institution":"Icahn School of Medicine at Mount Sinai","specialty":"Gastroenterology","url":"https://www.findmykol.com/kol/bruce-sands","json_url":"https://www.findmykol.com/kol/bruce-sands/profile.json"}],"coverage":{"note":"A basic directory record. 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":{}},"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"},"works":{"name":"OpenAlex","url":"https://openalex.org","provides":"Citations, h-index, research topics, most-cited works and congress abstracts"}},"methodology_url":"https://www.findmykol.com/about#methodology"}