Sienna Williams
NPI 1477211159 · Addiction (Substance Use Disorder) Counselor · Grants Pass, OR
Sienna Williams is a Addiction (Substance Use Disorder) Counselor provider in Grants Pass, OR (NPI 1477211159).
Provider details
- NPI number
- 1477211159
- 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
- Health Information Technician247000000X
Technologists, Technicians & Other Technical Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES 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
- 2021-11-30
- Last updated
- 2022-09-21
- Certified
- 2022-09-21
Frequently asked questions
- What is Sienna Williams's NPI number?
- Sienna Williams's National Provider Identifier (NPI) is 1477211159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sienna Williams's specialty?
- Sienna Williams is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sienna Williams located?
- Sienna Williams's practice location on file with NPPES is 900 Hitching Post Rd, Grants Pass, OR 97526-9710.
- What is Sienna Williams's phone number?
- The practice phone number listed in the NPPES registry for Sienna Williams is (541) 237-5067.
- Is Sienna Williams's NPI active?
- Yes — Sienna Williams's NPI (1477211159) is active in the NPPES registry as of the last update on 2022-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.