{"schema_version":"1","generated_at":"2026-10-31T10:05:07.073Z","data_as_of":null,"url":"https://www.findmykol.com/kol/john-visser","json_url":"https://www.findmykol.com/kol/john-visser/profile.json","record_kind":"basic","profile_kind":"clinical","person":{"slug":"john-visser","name":"John Visser","credential":"MD","specialty":"Neurology","specialty_raw":"Neurology","therapeutic_area":"Neurology","therapeutic_areas":["Neurology"],"institution":"Spectrum Health","institution_url":"https://www.findmykol.com/institution/spectrum-health","city":"Grand Rapids","state":"MI","region":{"label":"Midwest","url":"https://www.findmykol.com/region/midwest"}},"identifiers":{"npi":"1255388062","openalex":"A5049162160"},"summary":"John Visser is a Neurology physician affiliated with Spectrum Health. OpenAlex indexes 9 publications with 203 citations (h-index 6).","overview":null,"focus":{"indications":[],"research_topics":["Neurology"]},"scholarship":{"works_count":9,"cited_by_count":203,"h_index":6,"latest_activity_year":2017,"source":"works"},"prescribing":{"data_year":2019,"areas_total":2,"areas_shown":2,"areas":[{"area":"Metabolism & gastrointestinal","share_pct":52,"classes_total":1,"classes":[{"class":"Anticholinergic","setting":"prescribed","share_pct":52,"drugs":[{"name":"Dicyclomine Hcl","share_pct":100}],"max_beneficiaries":null}]},{"area":"Cardiovascular","share_pct":48,"classes_total":1,"classes":[{"class":"Beta blocker","setting":"prescribed","share_pct":48,"drugs":[{"name":"Propranolol Hcl Er","share_pct":100}],"max_beneficiaries":null}]}],"care_setting":{"dominant":"office","data_year":2019,"office_pct":100,"facility_pct":0},"source":"medicare"},"publications":{"total":9,"shown":5,"withheld":4,"matched_by":"OpenAlex author record","recent":[{"title":"Recurrent Cerebral Venous Thrombosis in the Setting of Ulcerative Colitis (P3.281)","year":2017,"journal":"Neurology","source_url":"https://doi.org/10.1212/wnl.88.16_supplement.p3.281","status":"verified"},{"title":"Prevention of Meningococcal Serogroup B Infections in Children: A Protein‐Based Vaccine Induces Immunologic Memory","year":2001,"journal":"The Journal of Infectious Diseases","source_url":"https://doi.org/10.1086/320993","status":"verified"},{"title":"Influvac: a safe Madin Darby Canine Kidney (MDCK) cell culture-based influenza vaccine.","year":1999,"journal":"PubMed","status":"verified"},{"title":"Psychological impact of continuous subcutaneous insulin infusion pump therapy in non-selected newly diagnosed insulin dependent (type 1) diabetic children: evaluation after two years of therapy.","year":1991,"journal":"PubMed","status":"verified"},{"title":"Psychological impact of continuous subcutaneous insulin infusion pump therapy in non-selected newly diagnosed insulin dependent (type 1) diabetic children: Evaluation after two years of therapy [IMPACT PSYCHOLOGIQUE D'UN TRAITEMENT PAR PERFUSION SOUS-CUTANEE CONTINUE D'INSULINE DES LE DIAGNOSTIC CHEZ LES ENFANTS DIABETIQUES NON SELECTIONNES: EVALUATIONS APRES DEUX AND DE TRAITEMENT]","year":1990,"journal":"Open Repository and Bibliography (University of Luxembourg)","status":"verified"}],"source":"works"},"similar":[{"name":"Kevin Klos","slug":"kevin-klos","institution":"Spectrum Health","specialty":"Neurological Surgery","url":"https://www.findmykol.com/kol/kevin-klos","json_url":"https://www.findmykol.com/kol/kevin-klos/profile.json"},{"name":"Tomasz Timek","slug":"tomasz-timek","institution":"Spectrum Health","specialty":"Thoracic Surgery (Cardiothoracic Vascular Surgery)","url":"https://www.findmykol.com/kol/tomasz-timek","json_url":"https://www.findmykol.com/kol/tomasz-timek/profile.json"},{"name":"Martin Luchtefeld","slug":"martin-luchtefeld","institution":"Spectrum Health","specialty":"Colon & Rectal Surgery","url":"https://www.findmykol.com/kol/martin-luchtefeld","json_url":"https://www.findmykol.com/kol/martin-luchtefeld/profile.json"},{"name":"Darryl Elmouchi","slug":"darryl-elmouchi","institution":"Spectrum Health","specialty":"Clinical Cardiac Electrophysiology","url":"https://www.findmykol.com/kol/darryl-elmouchi","json_url":"https://www.findmykol.com/kol/darryl-elmouchi/profile.json"},{"name":"Bruce Miller","slug":"bruce-miller","institution":"University of California, San Francisco (UCSF)","specialty":"Neurology","url":"https://www.findmykol.com/kol/bruce-miller","json_url":"https://www.findmykol.com/kol/bruce-miller/profile.json"},{"name":"Brett Kissela","slug":"brett-kissela","institution":"Medical College of Wisconsin","specialty":"Neurology","url":"https://www.findmykol.com/kol/brett-kissela","json_url":"https://www.findmykol.com/kol/brett-kissela/profile.json"},{"name":"Bradley Boeve","slug":"bradley-boeve","institution":"Mayo Clinic","specialty":"Neurology","url":"https://www.findmykol.com/kol/bradley-boeve","json_url":"https://www.findmykol.com/kol/bradley-boeve/profile.json"},{"name":"Richard Lipton","slug":"richard-lipton","institution":"Albert Einstein College of Medicine","specialty":"Neurology","url":"https://www.findmykol.com/kol/richard-lipton","json_url":"https://www.findmykol.com/kol/richard-lipton/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":4}},"sources":{"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"},"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":2019}},"methodology_url":"https://www.findmykol.com/about#methodology"}