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

MS. Mary Virginia Williams, RN, MS, FNP

Individual provider Nurse Practitioner · NPI 1174602825

MS. Mary Virginia Williams, RN, MS, FNP is a Nurse Practitioner in Walnut Creek, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MS — Master of Science
A graduate science degree.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Practice location Address checks out

1776 Ygnacio Valley Rd Ste 208
Walnut Creek, CA 94598-3125
Phone: (925) 937-0995
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 412931-6857 (CA)

Record details

NPI number1174602825
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MS , FNP
Sole proprietorNo
NPI enumeratedNovember 3, 2006
Last updated in NPPESFebruary 21, 2018

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