Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Gregory David Riker, BA, AAC

Individual provider Mental Health Counselor · NPI 1639221989

Mr. Gregory David Riker, BA, AAC is a Mental Health Counselor in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2007.

Licensed in
WA
In the registry since
2007
What do these letters mean?
BA — Bachelor of Arts
An undergraduate arts degree.

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Practice location Address checks out

122 16th Ave E Capitol Hl N
Seattle, WA 98112-5212
Phone: (206) 302-2200
Fax: (206) 302-2710
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Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence CG60164112 (WA)

Record details

NPI number1639221989
Entity typeIndividual (Type 1)
GenderMale
Credentials BA , AAC
Sole proprietorNo
NPI enumeratedJanuary 17, 2007
Last updated in NPPESDecember 19, 2016

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