Penny Williams
NPI 1447437736 · Addiction (Substance Use Disorder) Counselor · Martinez, CA
Penny Williams is a Addiction (Substance Use Disorder) Counselor provider in Martinez, CA (NPI 1447437736).
Provider details
- NPI number
- 1447437736
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 070008BN (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-29
- Last updated
- 2008-01-29
Frequently asked questions
- What is Penny Williams's NPI number?
- Penny Williams's National Provider Identifier (NPI) is 1447437736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Penny Williams's specialty?
- Penny Williams is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Penny Williams located?
- Penny Williams's practice location on file with NPPES is 904 Mellus St, Martinez, CA 94553-1745.
- What is Penny Williams's phone number?
- The practice phone number listed in the NPPES registry for Penny Williams is (925) 229-0230.
- Is Penny Williams's NPI active?
- Yes — Penny Williams's NPI (1447437736) is active in the NPPES registry as of the last update on 2008-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.