{"npi":"1720022478","type":"NPI-1","status":"active","name":{"display":"Dr. Marcia Bergen DO","other":[],"first":"MARCIA","last":"BERGEN","middle":"J","credential":"DO"},"specialty":{"primary_taxonomy":"207L00000X","primary_taxonomy_description":"Anesthesiology","slug":"anesthesiology","schema_org_specialty":"Anesthesia","all":[{"code":"207L00000X","description":"Anesthesiology","primary":true,"state":"MA","license":"151441"}]},"addresses":[{"purpose":"LOCATION","street_1":"295 VARNUM AVE","city":"LOWELL","state":"MA","postal_code":"018542134","country_code":"US","street_2":"ANESTHETICS OF LOWELL, PC","phone":"9784540941"},{"purpose":"MAILING","street_1":"173 LITTLETON COUNTY RD","city":"HARVARD","state":"MA","postal_code":"014511459","country_code":"US"}],"license":{"state":"MA","number":"151441"},"identifiers":[{"type_code":"05","label":"Medicaid","value":"3181421","state":"MA","issuer":null}],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20041013001243","type_code":"14-05","type_desc":"PRACTITIONER - ANESTHESIOLOGY","state":"MA","pac_id":"1951361906"}]},"enumeration_date":"2006-06-15","last_updated":"2008-04-15","_meta":{"source":"NPPES","snapshot_date":"2008-04-15","doc_url":"https://findmynpi.com/api"}}