{"npi":"1265529366","type":"NPI-1","status":"active","name":{"display":"Dr. Mark Wang D.M.D","other":[{"code":"2","type":"Professional name","value":"WANG, MARK GUANGQIANG"}],"first":"MARK","last":"WANG","middle":"G","credential":"D.M.D"},"specialty":{"primary_taxonomy":"1223E0200X","primary_taxonomy_description":"Endodontics","slug":"endodontics","schema_org_specialty":null,"all":[{"code":"1223E0200X","description":"Endodontics","primary":true,"state":"MA","license":"20514"}]},"addresses":[{"purpose":"LOCATION","street_1":"39 CROSS ST STE 304","city":"PEABODY","state":"MA","postal_code":"019601666","country_code":"US","phone":"9785313400","fax":"7818636368"},{"purpose":"MAILING","street_1":"4 WELCH RD","city":"LEXINGTON","state":"MA","postal_code":"024217519","country_code":"US","phone":"7818636368","fax":"7818636368"}],"license":{"state":"MA","number":"20514"},"identifiers":[],"pecos":{"enrolled_at":null,"enrollments":[]},"enumeration_date":"2006-10-09","last_updated":"2026-04-08","_meta":{"source":"NPPES","snapshot_date":"2026-04-08","doc_url":"https://findmynpi.com/api"}}