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

MS. Mary Jo Williams, RN

Individual provider Administrator Registered Nurse · NPI 1144333220

MS. Mary Jo Williams, RN is an Administrator Registered Nurse in Oakland, 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.

See every abbreviation used in this directory →

Practice location Address checks out

1950 Franklin St
Oakland, CA 94612-5103
Phone: (510) 987-3647
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Administrator Registered Nurse (primary) Taxonomy 163WA2000X · Licence 271936 (CA)

Record details

NPI number1144333220
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorNo
NPI enumeratedAugust 16, 2006
Last updated in NPPESJuly 8, 2007

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