{"npi":"1477565612","type":"NPI-1","status":"active","name":{"display":"Dr. Kelly Holder PH.D.","other":[{"code":"2","type":"Professional name","value":"DARBY-HOLDER, KELLY DIANE"}],"first":"KELLY","last":"HOLDER","middle":"DIANE DARBY","credential":"PH.D."},"specialty":{"primary_taxonomy":"103TC0700X","primary_taxonomy_description":"Clinical Psychologist","slug":"clinical-psychologist","schema_org_specialty":null,"all":[{"code":"103T00000X","description":"Psychologist","primary":false,"state":"PA","license":"PS016389"},{"code":"103TC0700X","description":"Clinical Psychologist","primary":true,"state":"MI","license":"6301019678"},{"code":"103T00000X","description":"Psychologist","primary":false,"state":"TN","license":"2973"}]},"addresses":[{"purpose":"LOCATION","street_1":"250 CHERRY ST SE","city":"GRAND RAPIDS","state":"MI","postal_code":"495034608","country_code":"US","phone":"6166855600"},{"purpose":"MAILING","street_1":"200 JEFFERSON AVE SE","city":"GRAND RAPIDS","state":"MI","postal_code":"495034502","country_code":"US"}],"license":{"state":"MI","number":"6301019678"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20251017000298","type_code":"14-68","type_desc":"PRACTITIONER - CLINICAL PSYCHOLOGIST","state":"MI","pac_id":"6305030438"}]},"enumeration_date":"2006-08-13","last_updated":"2026-02-04","_meta":{"source":"NPPES","snapshot_date":"2026-02-04","doc_url":"https://findmynpi.com/api"}}