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

Derwin Decker, CADC1

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1619208337

Derwin Decker, CADC1 is an Addiction (Substance Use Disorder) Counselor in Klamath Falls, Oregon. Licensed in Oregon. Registered with an NPI since 2010.

Licensed in
OR
In the registry since
2010

Practice location Address checks out

3949 S 6th St
Klamath Falls, OR 97603-4746
Phone: (541) 882-1487
Fax: (541) 882-1670
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 95-04-35 (OR)

Record details

NPI number1619208337
Entity typeIndividual (Type 1)
GenderMale
Credentials CADC1
Sole proprietorNo
NPI enumeratedJanuary 20, 2010
Last updated in NPPESJanuary 20, 2010
Mailing address3949 South 6th Street, Klamath Falls, OR 97603-4746

Other providers in Klamath Falls