# WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC is an ADHD evaluation provider with an address in SILVER SPRING, MD, United States. ## Details - Address: 8720 GEORGIA AVE SUITE 300, SILVER SPRING, MD, 209103638 - Phone: [301-565-0534]() - National Provider Identifier (NPI): 1205016607 - Provider type: Clinical neuropsychologist - Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free ## Questions ### Where is WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC? WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC is at 8720 GEORGIA AVE SUITE 300, SILVER SPRING, MD, 209103638. ### How do I contact WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC? To contact WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC, call 301-565-0534. ### Is WILLIAM R. STIXRUD, PH.D. AND ASSOCIATES LLC 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=1205016607), 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 SILVER SPRING]() - [Clinical neuropsychologists in SILVER SPRING]() - [More ADHD evaluation providers in SILVER SPRING]()