{"npi":"1609833102","type":"NPI-1","status":"active","name":{"display":"Marvin Walker D.O.","other":[],"first":"MARVIN","last":"WALKER","middle":"DEAN","credential":"D.O."},"specialty":{"primary_taxonomy":"2085R0202X","primary_taxonomy_description":"Diagnostic Radiology","slug":"diagnostic-radiology","schema_org_specialty":"Radiography","all":[{"code":"2085R0202X","description":"Diagnostic Radiology","primary":true,"state":"IA","license":"02204"}]},"addresses":[{"purpose":"LOCATION","street_1":"12368 STRATFORD DR","city":"CLIVE","state":"IA","postal_code":"503258162","country_code":"US","street_2":"SUITE 300","phone":"5152269810","fax":"5152268408"},{"purpose":"MAILING","street_1":"153 37TH ST","city":"DES MOINES","state":"IA","postal_code":"503124303","country_code":"US","phone":"5152770753"}],"license":{"state":"IA","number":"02204"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"1043364","state":"IA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20060207000186","type_code":"14-30","type_desc":"PRACTITIONER - DIAGNOSTIC RADIOLOGY","state":"IA","pac_id":"0941294813"}]},"enumeration_date":"2006-04-27","last_updated":"2007-07-08","_meta":{"source":"NPPES","snapshot_date":"2007-07-08","doc_url":"https://findmynpi.com/api"}}