Marcella Williams
NPI 1467300384 · Addiction (Substance Use Disorder) Counselor · Scotts Valley, CA
Marcella Williams is a Addiction (Substance Use Disorder) Counselor provider in Scotts Valley, CA (NPI 1467300384).
Provider details
- NPI number
- 1467300384
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2026-03-17
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is Marcella Williams's NPI number?
- Marcella Williams's National Provider Identifier (NPI) is 1467300384, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcella Williams's specialty?
- Marcella Williams is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marcella Williams located?
- Marcella Williams's practice location on file with NPPES is 3600 Glen Canyon Rd, Scotts Valley, CA 95066-4923.
- What is Marcella Williams's phone number?
- The practice phone number listed in the NPPES registry for Marcella Williams is (831) 431-8056.
- Is Marcella Williams's NPI active?
- Yes — Marcella Williams's NPI (1467300384) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.