# TIMOTHY TENNYSON TIMOTHY TENNYSON is an ADHD evaluation provider with an address in COSTA MESA, CA, United States. ## Details - Address: 3140 RED HILL AVE STE 130, COSTA MESA, CA, 926263400 - Phone: [949-307-3600]() - National Provider Identifier (NPI): 1407290752 - Credentials: PHD - Provider type: Clinical neuropsychologist - Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free ## Questions ### Where is TIMOTHY TENNYSON? TIMOTHY TENNYSON is at 3140 RED HILL AVE STE 130, COSTA MESA, CA, 926263400. ### How do I contact TIMOTHY TENNYSON? To contact TIMOTHY TENNYSON, call 949-307-3600. ### Is TIMOTHY TENNYSON 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=1407290752), 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 COSTA MESA]() - [Clinical neuropsychologists in COSTA MESA]() - [More ADHD evaluation providers in COSTA MESA]()