{"id":131178,"url":"https://lda.gov/api/v1/clients/131178/?format=json","client_id":12,"name":"MASSACHUSETTS MEDICAL SOCIETY","general_description":null,"client_government_entity":false,"client_self_select":true,"state":"MA","state_display":"Massachusetts","country":"US","country_display":"United States of America","ppb_state":"MA","ppb_state_display":"Massachusetts","ppb_country":"US","ppb_country_display":"United States of America","effective_date":"1996-02-14","registrant":{"id":23975,"url":"https://lda.gov/api/v1/registrants/23975/?format=json","house_registrant_id":31967,"name":"MASSACHUSETTS MEDICAL SOCIETY","description":null,"address_1":"860 WINTER STREET","address_2":null,"address_3":null,"address_4":null,"city":"WALTHAM","state":"MA","state_display":"Massachusetts","zip":"02451","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"THEODORE A. CALIANOS, MD","contact_telephone":"+1 781-893-4610","dt_updated":"2026-07-23T07:11:44.504471-04:00"}}