{"npi":"1164558920","type":"NPI-1","status":"active","name":{"display":"Dr. William Chapman M.D.","other":[],"first":"WILLIAM","last":"CHAPMAN","middle":"TALBERT","credential":"M.D."},"specialty":{"primary_taxonomy":"174400000X","primary_taxonomy_description":"Specialist","slug":"specialist","schema_org_specialty":null,"all":[{"code":"174400000X","description":"Specialist","primary":true,"state":"CA","license":"G38997"}]},"addresses":[{"purpose":"LOCATION","street_1":"2340 E 8TH ST","city":"NATIONAL CITY","state":"CA","postal_code":"919502869","country_code":"US","street_2":"SUITE G","phone":"6194753870","fax":"6194756402"},{"purpose":"MAILING","street_1":"2340 E 8TH ST","city":"NATIONAL CITY","state":"CA","postal_code":"919502869","country_code":"US","street_2":"SUITE G","phone":"6194753870","fax":"6194756402"}],"license":{"state":"CA","number":"G38997"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"00G389970","state":"CA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20090116000584","type_code":"14-13","type_desc":"PRACTITIONER - NEUROLOGY","state":"CA","pac_id":"2163585134"}]},"enumeration_date":"2007-02-26","last_updated":"2007-07-08","_meta":{"source":"NPPES","snapshot_date":"2007-07-08","doc_url":"https://findmynpi.com/api"}}