{"npi":"1790852291","type":"NPI-1","status":"active","name":{"display":"Justin Greczek O.D.","other":[],"first":"JUSTIN","last":"GRECZEK","middle":"P","credential":"O.D."},"specialty":{"primary_taxonomy":"152W00000X","primary_taxonomy_description":"Optometrist","slug":"optometrist","schema_org_specialty":null,"all":[{"code":"152W00000X","description":"Optometrist","primary":true,"state":"PA","license":"OEG001812"}]},"addresses":[{"purpose":"LOCATION","street_1":"841 E. BALTIMORE PIKE","city":"KENNETT SQUARE","state":"PA","postal_code":"19348","country_code":"US","street_2":"CHESTER COUNTY OPTICIANS","phone":"6104445252"},{"purpose":"MAILING","street_1":"22 S WALNUT ST","city":"WEST CHESTER","state":"PA","postal_code":"193823141","country_code":"US","phone":"2674080895","fax":"6103638545"}],"license":{"state":"PA","number":"OEG001812"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20080701000094","type_code":"14-41","type_desc":"PRACTITIONER - OPTOMETRY","state":"PA","pac_id":"8426120866"}]},"enumeration_date":"2006-11-29","last_updated":"2013-04-25","_meta":{"source":"NPPES","snapshot_date":"2013-04-25","doc_url":"https://findmynpi.com/api"}}