# 1St Line Medical, Inc. 1St Line Medical, Inc. is a sleep clinic with an address in Holderness, NH, United States. ## Details - Address: 854 US ROUTE 3, Holderness, NH, 03245, United States - Phone: [603-968-3172]() - National Provider Identifier (NPI): 1477886075 - 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 1St Line Medical, Inc.? 1St Line Medical, Inc. is at 854 US ROUTE 3, Holderness, NH, 03245, United States. ### How do I contact 1St Line Medical, Inc.? To contact 1St Line Medical, Inc., call 603-968-3172. ### Is 1St Line Medical, Inc. 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=1477886075), 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 Holderness]() - [Home sleep apnea testing providers in Holderness]() - [In-lab polysomnography centers in Holderness]() - [Sleep disorder diagnostic clinics in Holderness]() - [More sleep clinics in Holderness]()