{"npi":"1720154495","type":"NPI-1","status":"active","name":{"display":"Dr. Niven Tien DDS, MD","other":[],"first":"NIVEN","last":"TIEN","middle":"T","credential":"DDS,MD"},"specialty":{"primary_taxonomy":"1223S0112X","primary_taxonomy_description":"Oral and Maxillofacial Surgery (Dentist)","slug":"oral-and-maxillofacial-surgery-dentist","schema_org_specialty":null,"all":[{"code":"204E00000X","description":"Oral & Maxillofacial Surgery (D.M.D.)","primary":false,"state":"MD","license":"14962"},{"code":"2086S0122X","description":"Plastic and Reconstructive Surgery Physician","primary":false,"state":"DC","license":"MD044528"},{"code":"2086S0122X","description":"Plastic and Reconstructive Surgery Physician","primary":false,"state":"MD","license":"D0075315"},{"code":"1223S0112X","description":"Oral and Maxillofacial Surgery (Dentist)","primary":true,"state":"DC","license":"DEN1001223"}]},"addresses":[{"purpose":"LOCATION","street_1":"4301 50TH ST NW STE 200","city":"WASHINGTON","state":"DC","postal_code":"200164396","country_code":"US","phone":"2023604032"},{"purpose":"MAILING","street_1":"14955 SHADY GROVE ROAD","city":"NORTH BETHESDA","state":"MD","postal_code":"208508720","country_code":"US","street_2":"SUITE 330","phone":"3013400101"}],"license":{"state":"DC","number":"DEN1001223"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20150804004491","type_code":"33-C5","type_desc":"ORDER AND REFERRING ONLY - DENTIST","state":"CA","pac_id":"4486968427"}]},"enumeration_date":"2006-11-27","last_updated":"2024-11-14","_meta":{"source":"NPPES","snapshot_date":"2024-11-14","doc_url":"https://findmynpi.com/api"}}