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MR. GREGORY DAVID RIKER BA, AAC
NPI 1639221989
Counselor - Mental Health in Seattle, WA

Active since January 17, 2007
122 16TH AVE E, CAPITOL HILL NORTH, SEATTLE, WA 98112(206) 302-2200(206) 302-2710 Get Directions Write a Review

NPPES record last updated: December 19, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. Gregory David Riker Ba, Aac NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. GREGORY DAVID RIKER BA, AAC (NPI 1639221989) is an individual mental health provider in Seattle, Washington, licensed in Washington (CG60164112) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1639221989
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameMR. GREGORY DAVID RIKERCredential: BA, AAC
Location Address122 16TH AVE E, CAPITOL HILL NORTHSeattle, WA 98112-5212
Mailing Address1600 E Olive St, Seattle Mental HealthSeattle, WA 98122-2735 · (206) 302-2200 · Fax (206) 302-2210
Phone(206) 302-2200
Fax(206) 302-2710
Sole ProprietorNo
Enumeration DateJanuary 17, 2007
Last NPPES UpdateDecember 19, 2016
✔ NPI 1639221989 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in WA · CG60164112
122 16TH AVE E, Seattle, WA 98112
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MATTHEW L WALD
Student in an Organized Health Care Education/Training Program
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 302-2700
JASON SLADE
Student in an Organized Health Care Education/Training Program
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 302-2700
KYLE S GREGG
Student in an Organized Health Care Education/Training Program
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 302-2800
RYAN E DOMITZ MS
Counselor
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 901-2000
HAYDEN ROBERT FLETCHER
Peer Specialist
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 901-2000
CATHERINE T GREGORY
Student in an Organized Health Care Education/Training Program
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 302-2700
SCOTT JOHNSON
Counselor
122 16TH AVE E
SEATTLE, WA 98112
King County (206) 302-2700
MS. HANNAH LENORA HARRISON MSW
Counselor (Mental Health)
122 16TH AVE E, SOUND MENTAL HEALTH CHN
SEATTLE, WA 98112
King County (206) 302-2700

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Riker's NPI number?

The NPI number for Gregory Riker is 1639221989. It was assigned to this individual provider in the NPPES registry on January 17, 2007.

Where is Gregory Riker located?

Gregory Riker practices at 122 16th Ave E Capitol Hill North, Seattle, WA 98112. The listed phone number is (206) 302-2200.

What is Gregory Riker's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Gregory Riker was last updated on December 19, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.