{"npi":"1740552249","type":"NPI-1","status":"active","name":{"display":"Dr. Brett Larsen M.D.","other":[],"first":"BRETT","last":"LARSEN","middle":"ERIK","credential":"M.D."},"specialty":{"primary_taxonomy":"208600000X","primary_taxonomy_description":"Surgery","slug":"surgery","schema_org_specialty":"Surgical","all":[{"code":"2086S0102X","description":"Surgical Critical Care Physician","primary":false,"state":"AZ","license":"78132"},{"code":"390200000X","description":"Student in an Organized Health Care Education/Training Program","primary":false,"state":null,"license":null},{"code":"208600000X","description":"Surgery","primary":true,"state":"MI","license":"4301111208"}]},"addresses":[{"purpose":"LOCATION","street_1":"3500 CALKINS RD STE A","city":"FLINT","state":"MI","postal_code":"485323500","country_code":"US","phone":"8105157662","fax":"8103371479"},{"purpose":"MAILING","street_1":"302 KENSINGTON AVE","city":"FLINT","state":"MI","postal_code":"485032044","country_code":"US","phone":"8107628092","fax":"8107628892"}],"license":{"state":"MI","number":"4301111208"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20170323002385","type_code":"14-02","type_desc":"PRACTITIONER - GENERAL SURGERY","state":"MI","pac_id":"1951686427"},{"enrlmt_id":"I20250829002936","type_code":"14-02","type_desc":"PRACTITIONER - GENERAL SURGERY","state":"AZ","pac_id":"1951686427"}]},"enumeration_date":"2012-01-31","last_updated":"2025-08-15","_meta":{"source":"NPPES","snapshot_date":"2025-08-15","doc_url":"https://findmynpi.com/api"}}