{"npi":"1619085198","type":"NPI-1","status":"active","name":{"display":"Jeffery Viken MD","other":[],"first":"JEFFERY","last":"VIKEN","middle":"RYAN","credential":"MD"},"specialty":{"primary_taxonomy":"207L00000X","primary_taxonomy_description":"Anesthesiology","slug":"anesthesiology","schema_org_specialty":"Anesthesia","all":[{"code":"207L00000X","description":"Anesthesiology","primary":true,"state":"MD","license":"D64467"}]},"addresses":[{"purpose":"LOCATION","street_1":"100 HOSPITAL RD","city":"PRINCE FREDERICK","state":"MD","postal_code":"20678","country_code":"US","phone":"4105358295","fax":"4104144788"},{"purpose":"MAILING","street_1":"PO BOX 630898","city":"BALTIMORE","state":"MD","postal_code":"212630898","country_code":"US","phone":"8004261670"}],"license":{"state":"MD","number":"D64467"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20070208000207","type_code":"14-05","type_desc":"PRACTITIONER - ANESTHESIOLOGY","state":"MD","pac_id":"3779585419"},{"enrlmt_id":"I20210212001396","type_code":"14-05","type_desc":"PRACTITIONER - ANESTHESIOLOGY","state":"DC","pac_id":"3779585419"}]},"enumeration_date":"2006-08-26","last_updated":"2007-07-08","_meta":{"source":"NPPES","snapshot_date":"2007-07-08","doc_url":"https://findmynpi.com/api"}}