{"result_count":1,"results":[{"addresses":[{"address_1":"1015 WALNUT ST STE 620","address_purpose":"MAILING","address_type":"DOM","city":"PHILADELPHIA","country_code":"US","country_name":"United States","fax_number":"215-955-2878","postal_code":"191075005","state":"PA","telephone_number":"215-955-6864"},{"address_1":"1015 WALNUT ST STE 620","address_purpose":"LOCATION","address_type":"DOM","city":"PHILADELPHIA","country_code":"US","country_name":"United States","fax_number":"215-955-2878","postal_code":"191075005","state":"PA","telephone_number":"215-955-6864"}],"basic":{"certification_date":"2025-04-30","credential":"MD","enumeration_date":"2025-04-30","first_name":"CHELSEA","last_name":"MATZKO","last_updated":"2025-04-30","sex":"F","sole_proprietor":"YES","status":"A"},"created_epoch":"1746041104000","endpoints":[],"enumeration_type":"NPI-1","identifiers":[],"last_updated_epoch":"1746041104000","number":"1043008725","other_names":[],"practiceLocations":[],"taxonomies":[{"code":"208600000X","desc":"Surgery","license":"MT233711","primary":true,"state":"PA","taxonomy_group":"193400000X - Single Specialty Group"}]}]}