{"schema_version":"1","generated_at":"2026-10-28T08:30:37.181Z","data_as_of":null,"url":"https://www.findmykol.com/kol/ronald-kallen","json_url":"https://www.findmykol.com/kol/ronald-kallen/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"ronald-kallen","name":"Ronald Kallen","credential":"MD","specialty":"Pediatric Nephrology","specialty_raw":"Pediatric Nephrology","therapeutic_area":"Nephrology","therapeutic_areas":["Nephrology"],"institution":"Northwestern University","institution_url":"https://www.findmykol.com/institution/northwestern-university-feinberg-school-of-medicine","city":"Chicago","state":"IL","region":{"label":"Midwest","url":"https://www.findmykol.com/region/midwest"}},"identifiers":{"npi":"1245283647","openalex":"A5048882188"},"summary":"Ronald Kallen is a Nephrology physician affiliated with Northwestern University. OpenAlex indexes 57 publications with 2,793 citations (h-index 16).","overview":null,"focus":{"indications":[],"research_topics":["Nephrology"]},"scholarship":{"works_count":57,"cited_by_count":2793,"h_index":16,"latest_activity_year":2012,"source":"works"},"publications":{"total":50,"shown":5,"withheld":45,"matched_by":"OpenAlex author record","recent":[{"title":"Pediatric Renal Lymphangiectasia: Importance of Recognition and Accurate Renal Imaging","year":2012,"journal":"Urology","source_url":"https://doi.org/10.1016/j.urology.2011.12.045","status":"verified"},{"title":"Population Genetics of Alport’s Syndrome","year":2008,"journal":"The Nephron journals/Nephron journals","source_url":"https://doi.org/10.1159/000180666","status":"verified"},{"title":"Management options when fetal imaging shows possible urinary tract anomalies","year":2008,"journal":"AAP News","source_url":"https://doi.org/10.1542/aapnews.20082912-14","status":"verified"},{"title":"Author Index, Vol. 16, 1976","year":2008,"journal":"The Nephron journals/Nephron journals","source_url":"https://doi.org/10.1159/000180674","status":"verified"},{"title":"Subject Index, Vol. 16, 1976","year":2008,"journal":"The Nephron journals/Nephron journals","source_url":"https://doi.org/10.1159/000180673","status":"verified"}],"source":"works"},"contact":{"address_1":"2300 N CHILDRENS PLZ","city":"Chicago","state":"IL","zip":"606143363","phone":"847-433-3345","source_url":"https://npiregistry.cms.hhs.gov/provider-view/1245283647","source":"identity"},"similar":[{"name":"Timothy Kuzel","slug":"timothy-kuzel","institution":"Northwestern University","specialty":"Medical Oncology","url":"https://www.findmykol.com/kol/timothy-kuzel","json_url":"https://www.findmykol.com/kol/timothy-kuzel/profile.json"},{"name":"Joel Charrow","slug":"joel-charrow","institution":"Northwestern University","specialty":"Clinical Genetics (M.D.)","url":"https://www.findmykol.com/kol/joel-charrow","json_url":"https://www.findmykol.com/kol/joel-charrow/profile.json"},{"name":"Paul Cremer","slug":"paul-cremer","institution":"Northwestern University","specialty":"Cardiovascular Disease","url":"https://www.findmykol.com/kol/paul-cremer","json_url":"https://www.findmykol.com/kol/paul-cremer/profile.json"},{"name":"Akhil Chawla","slug":"akhil-chawla","institution":"Northwestern University","specialty":"Surgical Oncology","url":"https://www.findmykol.com/kol/akhil-chawla","json_url":"https://www.findmykol.com/kol/akhil-chawla/profile.json"},{"name":"Andrew Levey","slug":"andrew-levey","institution":"Tufts Medical Center","specialty":"Nephrology","url":"https://www.findmykol.com/kol/andrew-levey","json_url":"https://www.findmykol.com/kol/andrew-levey/profile.json"},{"name":"Bertram Kasiske","slug":"bertram-kasiske","institution":"Hennepin Healthcare","specialty":"Nephrology","url":"https://www.findmykol.com/kol/bertram-kasiske","json_url":"https://www.findmykol.com/kol/bertram-kasiske/profile.json"},{"name":"Garabed Eknoyan","slug":"garabed-eknoyan","institution":"Baylor College of Medicine","specialty":"Nephrology","url":"https://www.findmykol.com/kol/garabed-eknoyan","json_url":"https://www.findmykol.com/kol/garabed-eknoyan/profile.json"},{"name":"Lawrence Hunsicker","slug":"lawrence-hunsicker","institution":"University of Iowa","specialty":"Nephrology","url":"https://www.findmykol.com/kol/lawrence-hunsicker","json_url":"https://www.findmykol.com/kol/lawrence-hunsicker/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":{"publications":45}},"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":"2010-12-13","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"}},"methodology_url":"https://www.findmykol.com/about#methodology"}