# Arete Nw Llc Arete Nw Llc is a sleep clinic with an address in Portland, OR, United States. ## Details - Address: 6640 SW REDWOOD LN, Portland, OR, 97224, United States - Phone: [503-924-2266]() - National Provider Identifier (NPI): 1831362482 - 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 Arete Nw Llc? Arete Nw Llc is at 6640 SW REDWOOD LN, Portland, OR, 97224, United States. ### How do I contact Arete Nw Llc? To contact Arete Nw Llc, call 503-924-2266. ### Is Arete Nw 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=1831362482), 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 Portland]() - [Home sleep apnea testing providers in Portland]() - [In-lab polysomnography centers in Portland]() - [Sleep disorder diagnostic clinics in Portland]() - [More sleep clinics in Portland]()