{"npi":"1740778646","type":"NPI-1","status":"active","name":{"display":"Martin Williamson OD","other":[],"first":"MARTIN","last":"WILLIAMSON","middle":"JON","credential":"OD"},"specialty":{"primary_taxonomy":"152W00000X","primary_taxonomy_description":"Optometrist","slug":"optometrist","schema_org_specialty":null,"all":[{"code":"152W00000X","description":"Optometrist","primary":true,"state":"WI","license":"3509"}]},"addresses":[{"purpose":"LOCATION","street_1":"1836 SOUTH AVE","city":"LA CROSSE","state":"WI","postal_code":"54601","country_code":"US","phone":"6087827300"},{"purpose":"MAILING","street_1":"1836 SOUTH AVE","city":"LA CROSSE","state":"WI","postal_code":"546015429","country_code":"US","phone":"6087827300"}],"license":{"state":"WI","number":"3509"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20180910002829","type_code":"14-41","type_desc":"PRACTITIONER - OPTOMETRY","state":"IA","pac_id":"2567719768"},{"enrlmt_id":"I20180920000262","type_code":"14-41","type_desc":"PRACTITIONER - OPTOMETRY","state":"WI","pac_id":"2567719768"},{"enrlmt_id":"I20200902000384","type_code":"14-41","type_desc":"PRACTITIONER - OPTOMETRY","state":"MN","pac_id":"2567719768"}]},"enumeration_date":"2018-04-25","last_updated":"2018-08-31","_meta":{"source":"NPPES","snapshot_date":"2018-08-31","doc_url":"https://findmynpi.com/api"}}