Mental Health Therapist

Sienna Mendez

5608 17th Ave Nw Ste 1668, Seattle, Washington, 98107-5232

About Sienna Mendez

Sienna Mendez is a therapist based in Seattle, Washington who is specialized in Mental Health Counselor. Active license number of Sienna Mendez is MHCA.MC.700878937 for Mental Health Counselor in Washington. current practice location is 5608 17th Ave Nw Ste 1668, Seattle. Patients can reach at 206-672-3202. Sienna Mendez NPI number (Unique professional ID assigned by NPPES) is 1003623950.

Sienna Mendez is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. 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

Sienna Mendez 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 Sienna Mendez
Specialization Mental Health Counselor
Gender X
Practice Address: 5608 17th Ave Nw Ste 1668,
Seattle, WA - 98107-5232

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 Number1003623950
NPI Enumeration Date: 13 Dec, 2024
NPI Last Update On: 21 Apr, 2026

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 Sienna Mendez are as mentioned below.

License NumberSpecializationStateStatus
MHCA.MC.700878937Mental 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.

Sienna Mendez
5608 17th Ave Nw Ste 1668,
Seattle, WA - 98107-5232
Phone: 206-672-3202

Book an Appointment with Sienna Mendez

To schedule an appointment, contact Sienna Mendez at 5608 17th Ave Nw Ste 1668, Seattle, Washington or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Sienna Mendez:

Sienna Mendez is a therapist specializing in Mental Health Counselor. is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. 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, Sienna Mendez is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Sienna Mendez practices at 5608 17th Ave Nw Ste 1668, Seattle, Washington, 98107-5232.

To schedule an appointment with Sienna Mendez, please contact the office at 206-672-3202.

Reviews & Feedback

Have you visited Sienna Mendez? Share your experience to help others looking for a Mental Health Counselor in Seattle, WA.

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