# RONALD GELLIS RONALD GELLIS is an ADHD evaluation provider with an address in RANCHO SANTA MARGARITA, CA, United States. ## Details - Address: 25 FLORAMAR, RANCHO SANTA MARGARITA, CA, 926881308 - Phone: [949-533-6075]() - National Provider Identifier (NPI): 1891038352 - Credentials: Ph.D. - Provider type: Clinical neuropsychologist - Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free ## Questions ### Where is RONALD GELLIS? RONALD GELLIS is at 25 FLORAMAR, RANCHO SANTA MARGARITA, CA, 926881308. ### How do I contact RONALD GELLIS? To contact RONALD GELLIS, call 949-533-6075. ### Is RONALD GELLIS 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=1891038352), 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 RANCHO SANTA MARGARITA]() - [Clinical neuropsychologists in RANCHO SANTA MARGARITA]() - [More ADHD evaluation providers in RANCHO SANTA MARGARITA]()