{"npi":"1841289899","type":"NPI-1","status":"active","name":{"display":"Dr. Kenneth Demarco MD","other":[],"first":"KENNETH","last":"DEMARCO","middle":"M","credential":"MD"},"specialty":{"primary_taxonomy":"174400000X","primary_taxonomy_description":"Specialist","slug":"specialist","schema_org_specialty":null,"all":[{"code":"174400000X","description":"Specialist","primary":true,"state":"DE","license":"C100003230"}]},"addresses":[{"purpose":"LOCATION","street_1":"2700 SILVERSIDE RD","city":"WILMINGTON","state":"DE","postal_code":"198103719","country_code":"US","street_2":"SUITE 3","phone":"3024780400","fax":"3024783827"},{"purpose":"MAILING","street_1":"2700 SILVERSIDE RD","city":"WILMINGTON","state":"DE","postal_code":"198103719","country_code":"US","street_2":"SUITE 3","phone":"3024780400","fax":"3024783827"}],"license":{"state":"DE","number":"C100003230"},"identifiers":[{"type_code":"01","label":"Other","value":"0402191","state":null,"issuer":"UNITED HEALTHCARE"},{"type_code":"01","label":"Other","value":"110025559","state":null,"issuer":"RAILROAD MEDICARE"},{"type_code":"05","label":"Medicaid","value":"000055901","state":"DE","issuer":null},{"type_code":"01","label":"Other","value":"0053581000","state":null,"issuer":"IBC"},{"type_code":"01","label":"Other","value":"27965","state":null,"issuer":"AETNA"}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20090401000099","type_code":"14-11","type_desc":"PRACTITIONER - INTERNAL MEDICINE","state":"DE","pac_id":"1456418755"}]},"enumeration_date":"2005-10-20","last_updated":"2010-09-21","_meta":{"source":"NPPES","snapshot_date":"2010-09-21","doc_url":"https://findmynpi.com/api"}}