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

William Armstrong, MSW

Individual provider Mental Health Counselor · NPI 1841443389

William Armstrong, MSW is a Mental Health Counselor in Ukiah, California. Registered with an NPI since 2008.

In the registry since
2008
Specialties on file
3
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

780 S Dora St
Ukiah, CA 95482-5348
Phone: (707) 472-2922
Show map & directions

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

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X
Mental Health Counselor Taxonomy 101YM0800X
Case Manager/Care Coordinator Taxonomy 171M00000X

Record details

NPI number1841443389
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorNo
NPI enumeratedOctober 28, 2008
Last updated in NPPESApril 20, 2017
Mailing addressPo Box 2077, Ukiah, CA 95482-2077

Other providers in Ukiah