William Armstrong, MSW
NPI 1841443389 · Counselor · Ukiah, CA
William Armstrong, MSW is a Counselor provider in Ukiah, CA (NPI 1841443389).
Provider details
- NPI number
- 1841443389
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Case Manager/Care Coordinator171M00000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-10-28
- Last updated
- 2017-04-20
Frequently asked questions
- What is William Armstrong's NPI number?
- William Armstrong's National Provider Identifier (NPI) is 1841443389, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Armstrong's specialty?
- William Armstrong is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is William Armstrong located?
- William Armstrong's practice location on file with NPPES is 780 S Dora St, Ukiah, CA 95482-5348.
- What is William Armstrong's phone number?
- The practice phone number listed in the NPPES registry for William Armstrong is (707) 472-2922.
- Is William Armstrong's NPI active?
- Yes — William Armstrong's NPI (1841443389) is active in the NPPES registry as of the last update on 2017-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.