Mental Health Therapist

Sionainn Marissa Stein, LMHC, CST, NCC

600 N 36th St Ste 221, Seattle, Washington, 98103-8697

About Sionainn Marissa Stein

Sionainn Marissa Stein is a therapist based in Seattle, Washington who is specialized in Mental Health Counselor. Active license number of Sionainn Marissa Stein is LH61466439 for Mental Health Counselor in Washington. Her current practice location is 600 N 36th St Ste 221, Seattle. Patients can reach her at 425-477-9118 or can fax her at 206-338-0626. Sionainn Marissa Stein is LMHC, CST, NCC in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1275297228.

Sionainn Marissa Stein is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She 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

Sionainn Marissa Stein 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 Sionainn Marissa Stein
Specialization Mental Health Counselor
Credentials LMHC, CST, NCC
Gender Female
Practice Address: 600 N 36th St Ste 221,
Seattle, WA - 98103-8697
Fax 206-338-0626

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 Number1275297228
NPI Enumeration Date: 26 Oct, 2021
NPI Last Update On: 17 Nov, 2025

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 Sionainn Marissa Stein are as mentioned below.

License NumberSpecializationStateStatus
LH61466439Mental 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.

Sionainn Marissa Stein
600 N 36th St Ste 221,
Seattle, WA - 98103-8697
Phone: 425-477-9118

Book an Appointment with Sionainn Marissa Stein

To schedule an appointment, contact Sionainn Marissa Stein at 600 N 36th St Ste 221, Seattle, Washington or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Sionainn Marissa Stein:

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

Sionainn Marissa Stein practices at 600 N 36th St Ste 221, Seattle, Washington, 98103-8697.

To schedule an appointment with Sionainn Marissa Stein, please contact the office at 425-477-9118.

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