{"npi":"1619969854","type":"NPI-1","status":"active","name":{"display":"William Billows PHD Hspp","other":[],"first":"WILLIAM","last":"BILLOWS","middle":"DEAN","credential":"PHD HSPP"},"specialty":{"primary_taxonomy":"103TC0700X","primary_taxonomy_description":"Clinical Psychologist","slug":"clinical-psychologist","schema_org_specialty":null,"all":[{"code":"103TC0700X","description":"Clinical Psychologist","primary":true,"state":"IL","license":"071.006777"}]},"addresses":[{"purpose":"LOCATION","street_1":"800 E NORTHWEST HWY STE 106","city":"MOUNT PROSPECT","state":"IL","postal_code":"600563457","country_code":"US","phone":"8479099858","fax":"8472994952"},{"purpose":"MAILING","street_1":"800 E NORTHWEST HWY STE 106","city":"MOUNT PROSPECT","state":"IL","postal_code":"600563457","country_code":"US","phone":"8479099858","fax":"8472994952"}],"license":{"state":"IL","number":"071.006777"},"identifiers":[],"pecos":{"enrolled_at":"2026-07-01T15:01:53.235063+00:00","enrollments":[{"enrlmt_id":"I20071004000101","type_code":"14-68","type_desc":"PRACTITIONER - CLINICAL PSYCHOLOGIST","state":"IL","pac_id":"7113829466"}]},"enumeration_date":"2005-08-15","last_updated":"2022-07-21","_meta":{"source":"NPPES","snapshot_date":"2022-07-21","doc_url":"https://findmynpi.com/api"}}