Mental Health Therapist

Mr. Gregory David Riker, BA, AAC

122 16th Ave E, Capitol Hill North, Seattle, Washington, 98112-5212

About Mr. Gregory David Riker

Mr. Gregory David Riker is a therapist based in Seattle, Washington who is specialized in Mental Health Counselor. Active license number of Mr. Gregory David Riker is CG60164112 for Mental Health Counselor in Washington. His current practice location is 122 16th Ave E, Capitol Hill North, Seattle. Patients can reach him at 206-302-2200 or can fax him at 206-302-2710. Mr. Gregory David Riker is BA, AAC in Mental Health Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1639221989.

Mr. Gregory David Riker is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Practice Information

Mr. Gregory David Riker speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Mr. Gregory David Riker
Specialization Mental Health Counselor
Credentials BA, AAC
Gender Male
Practice Address: 122 16th Ave E, Capitol Hill North
Seattle, WA - 98112-5212
Fax 206-302-2710

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1639221989
NPI Enumeration Date: 17 Jan, 2007
NPI Last Update On: 19 Dec, 2016

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mr. Gregory David Riker are as mentioned below.

License NumberSpecializationStateStatus
CG60164112Mental Health Counselor WashingtonPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Mr. Gregory David Riker
1600 E Olive St, Seattle Mental Health
Seattle, WA - 98122-2735
Phone: 206-302-2200
Fax: 206-302-2210

Book an Appointment with Mr. Gregory David Riker

To schedule an appointment, contact Mr. Gregory David Riker at 122 16th Ave E, Capitol Hill North, Seattle, Washington or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mr. Gregory David Riker:

Gregory David Riker is a therapist specializing in Mental Health Counselor. He is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, Gregory David Riker is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Gregory David Riker practices at 122 16th Ave E, Capitol Hill North, Seattle, Washington, 98112-5212.

To schedule an appointment with Gregory David Riker, please contact the office at 206-302-2200.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.