Individual provider · Type 1 NPI

Mark Mason Matthiessen

Blind Rehabilitation Specialist/Technologist · Worcester, MA

NPI number 1164373676 Active

About NPI 1164373676

Mark Mason Matthiessen's National Provider Identifier is 1164373676, issued on Feb 9, 2026. The primary taxonomy on file is Blind Rehabilitation Specialist/Technologist (2255R0406X), and the practice location is in Worcester, MA. The record was last updated on Feb 9, 2026.