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

Derek Grieb

Individual provider Peer Specialist · NPI 1093606873

Derek Grieb is a Peer Specialist in Walla Walla, Washington. Practices as a sole proprietor. Registered with an NPI since 2025.

In the registry since
2025
Specialties on file
2

Practice location Address checks out

120 E Birch St Ste 14
Walla Walla, WA 99362-3054
Phone: (509) 876-4525
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
Peer Specialist Taxonomy 175T00000X

Record details

NPI number1093606873
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJuly 10, 2025
Last updated in NPPESJuly 10, 2025
Certification dateJuly 10, 2025
Mailing address120 E Birch St Ste 14, Walla Walla, WA 99362-3054

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