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

Gary Somdahl, CDP

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1821205808

Gary Somdahl, CDP is an Addiction (Substance Use Disorder) Counselor in Richland, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007

Practice location Address checks out

1305 Mansfield St Ste 5
Richland, WA 99352-3588
Phone: (509) 942-1624
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence CP00001001 (WA)

Record details

NPI number1821205808
Entity typeIndividual (Type 1)
GenderMale
Credentials CDP
Sole proprietorYes
NPI enumeratedMay 17, 2007
Last updated in NPPESJuly 8, 2007

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