# MARGARET SEWELL MARGARET SEWELL is an ADHD evaluation provider with an address in NEW YORK, NY, United States. ## Details - Address: 1 GUSTAVE L LEVY PL MOUNT SINAI MEDICAL CENTER BOX 1230, NEW YORK, NY, 100296500 - Phone: [212-241-0188]() - National Provider Identifier (NPI): 1952331522 - Credentials: Ph.D. - Provider type: Clinical neuropsychologist - Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free ## Questions ### Where is MARGARET SEWELL? MARGARET SEWELL is at 1 GUSTAVE L LEVY PL MOUNT SINAI MEDICAL CENTER BOX 1230, NEW YORK, NY, 100296500. ### How do I contact MARGARET SEWELL? To contact MARGARET SEWELL, call 212-241-0188. ### Is MARGARET SEWELL accepting new patients? That is not in the registry data. Call the phone number on the listing and ask about availability, wait times and insurance. ## Source From [CMS NPI Registry (National Plan and Provider Enumeration System)](https://npiregistry.cms.hhs.gov/api/?version=2.1&number=1952331522), license US government public data. CMS publishes NPPES provider data for open access under its data dissemination notice., checked 2026-10-06. Last updated October 6, 2026. ## Links - This ADHD evaluation provider on the [web page]() - [ADHD evaluations in NEW YORK]() - [Clinical neuropsychologists in NEW YORK]() - [More ADHD evaluation providers in NEW YORK]()