Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mary Ann Williams

Individual provider Social Worker · NPI 1205968146

Mary Ann Williams is a Social Worker in Festus, Missouri. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

227 E Main St
Festus, MO 63028-1952
Phone: (636) 931-2700
Fax: (636) 931-5304
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1205968146
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 9, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Festus