# MARK DE SANTIS MARK DE SANTIS is an ADHD evaluation provider with an address in CHARLESTON, SC, United States. ## Details - Address: 109 BEE ST, CHARLESTON, SC, 294015703 - Phone: [954-465-8136]() - National Provider Identifier (NPI): 1649469651 - Provider type: Clinical neuropsychologist - Source of the listing data: CMS NPI Registry, retrieved 2026-10-03, public, free ## Questions ### Where is MARK DE SANTIS? MARK DE SANTIS is at 109 BEE ST, CHARLESTON, SC, 294015703. ### How do I contact MARK DE SANTIS? To contact MARK DE SANTIS, call 954-465-8136. ### Is MARK DE SANTIS 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=1649469651), 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 CHARLESTON]() - [Clinical neuropsychologists in CHARLESTON]() - [More ADHD evaluation providers in CHARLESTON]()