{"npi":"1932482882","type":"NPI-1","status":"active","name":{"display":"Mr. Matthew Fessler","other":[],"first":"MATTHEW","last":"FESSLER","middle":"AARON"},"specialty":{"primary_taxonomy":"183500000X","primary_taxonomy_description":"Pharmacist","slug":"pharmacist","schema_org_specialty":null,"all":[{"code":"183500000X","description":"Pharmacist","primary":true,"state":"IL","license":"051.290351"}]},"addresses":[{"purpose":"LOCATION","street_1":"1876 CRAIGSHIRE DR","city":"SAINT LOUIS","state":"MO","postal_code":"631464006","country_code":"US","phone":"3144858600","fax":"3144858600"},{"purpose":"MAILING","street_1":"15452 OTTERVILLE RD","city":"GRAFTON","state":"IL","postal_code":"620372418","country_code":"US"}],"license":{"state":"IL","number":"051.290351"},"identifiers":[],"pecos":{"enrolled_at":null,"enrollments":[]},"enumeration_date":"2011-09-27","last_updated":"2026-01-29","_meta":{"source":"NPPES","snapshot_date":"2026-01-29","doc_url":"https://findmynpi.com/api"}}