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

Dr. Edward Joseph Terhaar, PHD

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1720257215

Dr. Edward Joseph Terhaar, PHD is an Addiction (Substance Use Disorder) Counselor in Spokane Valley, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2008
Specialties on file
3
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

9203 E Trent Ave
Spokane Valley, WA 99206-4216
Phone: (509) 838-2111
Fax: (509) 838-2111
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 020703-LH00005453 (WA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 20000262 (WA)
Marriage & Family Therapist Taxonomy 106H00000X · Licence 020705-FF00001053 (WA)

Record details

NPI number1720257215
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedFebruary 28, 2008
Last updated in NPPESMarch 22, 2011

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