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
Mailing address5503 Aspen Dr, West Richland, WA 99353-7705

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