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

MS. Penny L Williams

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1447437736

MS. Penny L Williams is an Addiction (Substance Use Disorder) Counselor in Martinez, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008

Practice location Address checks out

904 Mellus St
Martinez, CA 94553-1745
Phone: (925) 229-0230
Fax: (925) 229-0233
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 070008BN (CA)

Record details

NPI number1447437736
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJanuary 29, 2008
Last updated in NPPESJanuary 29, 2008
Mailing address1901 Church Ln, San Pablo, CA 94806-3707

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