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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Edward Joseph Terhaar, PH.D.

Mental Health Counselor in Spokane Valley, WA · enumerated 2008 · practices at Harmony Grove Counseling, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1720257215

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Registry record

Entity type Individual (Type 1)
Name Dr. Edward Joseph Terhaar
Credential PH.D.
Sex Male
Practice address Spokane Valley, WA, 99206
Phone (509) 838-2111
Fax (509) 838-2111
Enumeration date Feb 28, 2008
Last updated in NPPES Mar 22, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 20000262 (WA) Secondary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 020703-LH00005453 (WA) Primary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 020705-FF00001053 (WA) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Edward Terhaar?
Edward Terhaar is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-22.