{"npi":"1073445003","type":"NPI-1","status":"active","name":{"display":"Dr. Gregory Martens DDS","other":[],"first":"GREGORY","last":"MARTENS","credential":"DDS"},"specialty":{"primary_taxonomy":"1223G0001X","primary_taxonomy_description":"General Practice Dentistry","slug":"general-practice-dentistry","schema_org_specialty":null,"all":[{"code":"1223G0001X","description":"General Practice Dentistry","primary":true,"state":"WI","license":"600220215"}]},"addresses":[{"purpose":"LOCATION","street_1":"1003 PEARSON DR","city":"HUDSON","state":"WI","postal_code":"540168727","country_code":"US","phone":"7153779966","fax":"7153779933"},{"purpose":"MAILING","street_1":"4202 W 42ND ST","city":"EDINA","state":"MN","postal_code":"554165008","country_code":"US","phone":"9529280093"}],"license":{"state":"WI","number":"600220215"},"identifiers":[],"pecos":{"enrolled_at":null,"enrollments":[]},"enumeration_date":"2026-06-02","last_updated":"2026-06-02","_meta":{"source":"NPPES","snapshot_date":"2026-06-02","doc_url":"https://findmynpi.com/api"}}