# Helene A. Emsellem, Md, Pc Helene A. Emsellem, Md, Pc is a sleep clinic with an address in Chevy Chase, MD, United States. ## Details - Address: 5454 WISCONSIN AVE STE 1335, Chevy Chase, MD, 20815, United States - Phone: [301-654-0209]() - National Provider Identifier (NPI): 1689853756 - Provider type: Sleep disorder diagnostic clinic - Sleep studies offered: In-lab polysomnography (CPT 95810), Home sleep apnea test (CPT 95806 / G0399) - Source of the listing data: CMS NPI Registry, retrieved 2026-10-28, public, free ## Questions ### Where is Helene A. Emsellem, Md, Pc? Helene A. Emsellem, Md, Pc is at 5454 WISCONSIN AVE STE 1335, Chevy Chase, MD, 20815, United States. ### How do I contact Helene A. Emsellem, Md, Pc? To contact Helene A. Emsellem, Md, Pc, call 301-654-0209. ### Is Helene A. Emsellem, Md, Pc accepting new patients? That is not in the registry data. Call the phone number on the listing and ask about availability, referral rules, 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=1689853756), license US government public data. CMS publishes NPPES provider data for open access under its data dissemination notice., checked 2026-10-29. Last updated October 29, 2026. ## Links - This sleep clinic on the [web page]() - [Sleep studies in Chevy Chase]() - [Home sleep apnea testing providers in Chevy Chase]() - [In-lab polysomnography centers in Chevy Chase]() - [Sleep disorder diagnostic clinics in Chevy Chase]() - [More sleep clinics in Chevy Chase]()