# Napnook, Llc Napnook, Llc is a sleep clinic with an address in Washington, DC, United States. ## Details - Address: 1445 NEW YORK AVE NW STE 130, Washington, DC, 20005, United States - Phone: [844-334-6627]() - National Provider Identifier (NPI): 1346759701 - 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 Napnook, Llc? Napnook, Llc is at 1445 NEW YORK AVE NW STE 130, Washington, DC, 20005, United States. ### How do I contact Napnook, Llc? To contact Napnook, Llc, call 844-334-6627. ### Is Napnook, Llc 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=1346759701), 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 Washington]() - [Home sleep apnea testing providers in Washington]() - [In-lab polysomnography centers in Washington]() - [Sleep disorder diagnostic clinics in Washington]() - [More sleep clinics in Washington]()