{"npi":"1043200306","type":"NPI-1","status":"active","name":{"display":"John Mesko MD","other":[{"code":"2","type":"Professional name","value":"MESKO, J WESLEY"}],"first":"JOHN","last":"MESKO","middle":"WESLEY","credential":"MD"},"specialty":{"primary_taxonomy":"207XS0114X","primary_taxonomy_description":"Adult Reconstructive Orthopaedic Surgery","slug":"adult-reconstructive-orthopedic-surgery","schema_org_specialty":"Surgical","all":[{"code":"207XS0114X","description":"Adult Reconstructive Orthopaedic Surgery","primary":true,"state":"MI","license":"JM056304"}]},"addresses":[{"purpose":"LOCATION","street_1":"2815 S PENNSYLVANIA AVE","city":"LANSING","state":"MI","postal_code":"489103496","country_code":"US","street_2":"SUITE 204","phone":"5172670200","fax":"5172671877"},{"purpose":"MAILING","street_1":"2815 S PENNSYLVANIA AVE","city":"LANSING","state":"MI","postal_code":"489103496","country_code":"US","street_2":"SUITE 204","phone":"5172670200","fax":"5172671877"}],"license":{"state":"MI","number":"JM056304"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"4954152","state":"MI","issuer":null},{"type_code":"01","label":"Other","value":"JM056304","state":null,"issuer":"LICENSE"},{"type_code":"01","label":"Other","value":"200000006522","state":"MI","issuer":"PHP"},{"type_code":"01","label":"Other","value":"P00366506","state":"MI","issuer":"RAILROAD MEDICARE"},{"type_code":"01","label":"Other","value":"2003313211","state":"MI","issuer":"BLUES"},{"type_code":"01","label":"Other","value":"P54271","state":null,"issuer":"BCN"},{"type_code":"01","label":"Other","value":"4642835","state":null,"issuer":"AETNA"}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20050103000329","type_code":"14-20","type_desc":"PRACTITIONER - ORTHOPEDIC SURGERY","state":"MI","pac_id":"4880652700"}]},"enumeration_date":"2005-10-26","last_updated":"2023-03-07","_meta":{"source":"NPPES","snapshot_date":"2023-03-07","doc_url":"https://findmynpi.com/api"}}