{"npi":"1013545433","type":"NPI-1","status":"active","name":{"display":"William Madsen DO","other":[],"first":"WILLIAM","last":"MADSEN","middle":"CHASE","credential":"DO"},"specialty":{"primary_taxonomy":"207P00000X","primary_taxonomy_description":"Emergency Medicine","slug":"emergency-medicine","schema_org_specialty":"Emergency","all":[{"code":"207P00000X","description":"Emergency Medicine","primary":false,"state":"NV","license":"DO3341"},{"code":"207P00000X","description":"Emergency Medicine","primary":true,"state":"UT","license":"14250379-1204"}]},"addresses":[{"purpose":"LOCATION","street_1":"1000 N MAIN ST STE A","city":"RICHFIELD","state":"UT","postal_code":"847012069","country_code":"US","phone":"4358930580"},{"purpose":"MAILING","street_1":"PO BOX 27128","city":"SALT LAKE CITY","state":"UT","postal_code":"841270128","country_code":"US"}],"license":{"state":"UT","number":"14250379-1204"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20230821002190","type_code":"14-93","type_desc":"PRACTITIONER - EMERGENCY MEDICINE","state":"NV","pac_id":"1759743958"},{"enrlmt_id":"I20251106003506","type_code":"14-93","type_desc":"PRACTITIONER - EMERGENCY MEDICINE","state":"UT","pac_id":"1759743958"}]},"enumeration_date":"2020-03-31","last_updated":"2025-11-17","_meta":{"source":"NPPES","snapshot_date":"2025-11-17","doc_url":"https://findmynpi.com/api"}}