Individual provider · Type 1 NPI

Maria Lena Walls, ANP

Adult Health Nurse Practitioner · O Fallon, MO

NPI number 1740517515 Active

About NPI 1740517515

Maria Lena Walls, ANP's National Provider Identifier is 1740517515, issued on Nov 15, 2009. The primary taxonomy on file is Adult Health Nurse Practitioner (363LA2200X), and the practice location is in O Fallon, MO. The record was last updated on Oct 23, 2026.