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

Mary Ann Williamson

Individual provider Professional Counselor · NPI 1003130865

Mary Ann Williamson is a Professional Counselor in Saint Louis, Missouri. Practices as a sole proprietor. Licensed in Missouri.

Licensed in
MO
In the registry since
2010

Practice location Address checks out

7777 Bonhomme Ave Ste 909
Saint Louis, MO 63105-1911
Phone: (800) 356-0845
Show map & directions

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

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 001837 (MO)

Record details

NPI number1003130865
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedMarch 23, 2010
Last updated in NPPESMarch 23, 2010

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