{"npi":"1376537266","type":"NPI-1","status":"active","name":{"display":"Dr. William Keys M.D., PH.D","other":[],"first":"WILLIAM","last":"KEYS","credential":"M.D., PH.D"},"specialty":{"primary_taxonomy":"174400000X","primary_taxonomy_description":"Specialist","slug":"specialist","schema_org_specialty":null,"all":[{"code":"174400000X","description":"Specialist","primary":true,"state":"MD","license":"D0041962"}]},"addresses":[{"purpose":"LOCATION","street_1":"2975 MANCHESTER RD","city":"MANCHESTER","state":"MD","postal_code":"211021802","country_code":"US","street_2":"UNIT A","phone":"4103748100","fax":"4103748104"},{"purpose":"MAILING","street_1":"2975 MANCHESTER RD","city":"MANCHESTER","state":"MD","postal_code":"211021802","country_code":"US","street_2":"UNIT A","phone":"4103748100","fax":"4103748104"}],"license":{"state":"MD","number":"D0041962"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20100819001100","type_code":"14-13","type_desc":"PRACTITIONER - NEUROLOGY","state":"MD","pac_id":"5395879712"}]},"enumeration_date":"2005-09-07","last_updated":"2007-07-08","_meta":{"source":"NPPES","snapshot_date":"2007-07-08","doc_url":"https://findmynpi.com/api"}}