{"npi":"1922009943","type":"NPI-1","status":"active","name":{"display":"Dr. Mark Fedder MD","other":[],"first":"MARK","last":"FEDDER","middle":"STEPHEN","credential":"MD"},"specialty":{"primary_taxonomy":"207RG0100X","primary_taxonomy_description":"Gastroenterology","slug":"gastroenterology","schema_org_specialty":"Gastroenterologic","all":[{"code":"207RG0100X","description":"Gastroenterology","primary":true,"state":"IL","license":"036-067702"}]},"addresses":[{"purpose":"LOCATION","street_1":"6810 STATE ROUTE 162","city":"MARYVILLE","state":"IL","postal_code":"620628501","country_code":"US","street_2":"SUITE 211","phone":"6182880346","fax":"6182880349"},{"purpose":"MAILING","street_1":"6810 STATE ROUTE 162","city":"MARYVILLE","state":"IL","postal_code":"620628501","country_code":"US","street_2":"SUITE 211","phone":"6182880346","fax":"6182880349"}],"license":{"state":"IL","number":"036-067702"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20110304000782","type_code":"14-10","type_desc":"PRACTITIONER - GASTROENTEROLOGY","state":"IL","pac_id":"1153503602"}]},"enumeration_date":"2005-08-02","last_updated":"2020-12-29","_meta":{"source":"NPPES","snapshot_date":"2020-12-29","doc_url":"https://findmynpi.com/api"}}