{"schema_version":"1","generated_at":"2026-10-29T21:51:52.510Z","data_as_of":null,"url":"https://www.findmykol.com/kol/john-kovalchin","json_url":"https://www.findmykol.com/kol/john-kovalchin/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"john-kovalchin","name":"John Kovalchin","credential":"MD","specialty":"Pediatric Cardiology","specialty_raw":"Pediatric Cardiology","therapeutic_area":"Cardiology","therapeutic_areas":["Cardiology"],"institution":"Nationwide Children's Hospital","institution_url":"https://www.findmykol.com/institution/nationwide-children-s-hospital","city":"Columbus","state":"OH","region":{"label":"Midwest","url":"https://www.findmykol.com/region/midwest"}},"identifiers":{"npi":"1417994476","orcid":"0000-0001-7156-5373","openalex":"A5089252592"},"summary":"John Kovalchin is a Cardiology physician affiliated with Nationwide Children's Hospital. OpenAlex indexes 82 publications with 2,592 citations (h-index 25).","overview":null,"focus":{"indications":[],"research_topics":["Cardiology"]},"scholarship":{"works_count":82,"cited_by_count":2592,"h_index":25,"latest_activity_year":2025,"source":"works"},"publications":{"total":50,"shown":5,"withheld":45,"matched_by":"OpenAlex author record","recent":[{"title":"Flow dynamic differences between Kawasaki Disease patients with coronary artery aneurysms and ectasia","year":2025,"journal":"Journal of cardiovascular computed tomography","source_url":"https://doi.org/10.1016/j.jcct.2025.07.003","status":"verified"},{"title":"Effect of Beta Blockers on the Hemodynamics and Thrombotic Risk of Coronary Artery Aneurysms in Kawasaki Disease","year":2023,"journal":"Journal of Cardiovascular Translational Research","source_url":"https://doi.org/10.1007/s12265-023-10370-0","status":"verified"},{"title":"Predicting hemodynamic indices in coronary artery aneurysms using response surface method: An application in Kawasaki disease","year":2022,"journal":"Computer Methods and Programs in Biomedicine","source_url":"https://doi.org/10.1016/j.cmpb.2022.107007","status":"verified"},{"title":"Contemporary Outcomes in Tetralogy of Fallot With Absent Pulmonary Valve After Fetal Diagnosis","year":2021,"journal":"Journal of the American Heart Association","source_url":"https://doi.org/10.1161/jaha.120.019713","status":"verified"},{"title":"Risk Factors for Mortality and Circulatory Outcome Among Neonates Prenatally Diagnosed With Ebstein Anomaly or Tricuspid Valve Dysplasia: A Multicenter Study","year":2020,"journal":"Journal of the American Heart Association","source_url":"https://doi.org/10.1161/jaha.120.016684","status":"verified"}],"source":"works"},"similar":[{"name":"Maryam Fouladi","slug":"maryam-fouladi","institution":"Nationwide Children's Hospital","specialty":"Hematology / Oncology","url":"https://www.findmykol.com/kol/maryam-fouladi","json_url":"https://www.findmykol.com/kol/maryam-fouladi/profile.json"},{"name":"Toshiharu Shinoka","slug":"toshiharu-shinoka","institution":"Nationwide Children's Hospital","specialty":"Thoracic Surgery (Cardiothoracic Vascular Surgery)","url":"https://www.findmykol.com/kol/toshiharu-shinoka","json_url":"https://www.findmykol.com/kol/toshiharu-shinoka/profile.json"},{"name":"William Smoyer","slug":"william-smoyer","institution":"Nationwide Children's Hospital","specialty":"Pediatric Nephrology","url":"https://www.findmykol.com/kol/william-smoyer","json_url":"https://www.findmykol.com/kol/william-smoyer/profile.json"},{"name":"Mark Galantowicz","slug":"mark-galantowicz","institution":"Nationwide Children's Hospital","specialty":"Thoracic Surgery (Cardiothoracic Vascular Surgery)","url":"https://www.findmykol.com/kol/mark-galantowicz","json_url":"https://www.findmykol.com/kol/mark-galantowicz/profile.json"},{"name":"Deepak Bhatt","slug":"deepak-bhatt","institution":"Icahn School of Medicine at Mount Sinai","specialty":"Interventional Cardiology","url":"https://www.findmykol.com/kol/deepak-bhatt","json_url":"https://www.findmykol.com/kol/deepak-bhatt/profile.json"},{"name":"Harlan Krumholz","slug":"harlan-krumholz","institution":"Yale School of Medicine","specialty":"Cardiovascular Disease","url":"https://www.findmykol.com/kol/harlan-krumholz","json_url":"https://www.findmykol.com/kol/harlan-krumholz/profile.json"},{"name":"Scott Solomon","slug":"scott-solomon","institution":"Brigham and Women's Hospital","specialty":"Cardiovascular Disease","url":"https://www.findmykol.com/kol/scott-solomon","json_url":"https://www.findmykol.com/kol/scott-solomon/profile.json"},{"name":"Eric Topol","slug":"eric-topol","institution":"Scripps Research Institute (Scripps Research)","specialty":"Cardiovascular Disease","url":"https://www.findmykol.com/kol/eric-topol","json_url":"https://www.findmykol.com/kol/eric-topol/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":{"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"}