{"npi":"1407934391","type":"NPI-1","status":"active","name":{"display":"William Probst MD","other":[],"first":"WILLIAM","last":"PROBST","middle":"E.","credential":"MD"},"specialty":{"primary_taxonomy":"207V00000X","primary_taxonomy_description":"Obstetrics & Gynecology","slug":"ob-gyn","schema_org_specialty":"Obstetric","all":[{"code":"207V00000X","description":"Obstetrics & Gynecology","primary":true,"state":"CA","license":"G75094"}]},"addresses":[{"purpose":"LOCATION","street_1":"2185 W GRANT LINE RD","city":"TRACY","state":"CA","postal_code":"953777309","country_code":"US","phone":"2098393200"},{"purpose":"MAILING","street_1":"1800 HARRISON ST FL 7","city":"OAKLAND","state":"CA","postal_code":"946123466","country_code":"US","phone":"5106256262"}],"license":{"state":"CA","number":"G75094"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"00G750940","state":"CA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20101119001148","type_code":"14-16","type_desc":"PRACTITIONER - OBSTETRICS/GYNECOLOGY","state":"CA","pac_id":"1951597665"}]},"enumeration_date":"2006-11-01","last_updated":"2021-12-02","_meta":{"source":"NPPES","snapshot_date":"2021-12-02","doc_url":"https://findmynpi.com/api"}}