Mental Health Therapist

Marissa Lynn Cosaert

5 W Alder St Ste 333, Walla Walla, Washington, 99362-2849

About Marissa Lynn Cosaert

Marissa Lynn Cosaert is a therapist based in Walla Walla, Washington who is specialized in Mental Health Counselor. Active license number of Marissa Lynn Cosaert is MHCA.MC.70045905 for Mental Health Counselor in Washington. Her current practice location is 5 W Alder St Ste 333, Walla Walla. Patients can reach her at 509-529-4774. Marissa Lynn Cosaert NPI number (Unique professional ID assigned by NPPES) is 1023975612.

Marissa Lynn Cosaert 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

Marissa Lynn Cosaert 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 Marissa Lynn Cosaert
Specialization Mental Health Counselor
Gender Female
Practice Address: 5 W Alder St Ste 333,
Walla Walla, WA - 99362-2849

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 Number1023975612
NPI Enumeration Date: 06 Jan, 2026
NPI Last Update On: 06 Jan, 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 Marissa Lynn Cosaert are as mentioned below.

License NumberSpecializationStateStatus
MHCA.MC.70045905Mental 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.

Marissa Lynn Cosaert
5 W Alder St Ste 333,
Walla Walla, WA - 99362-2849
Phone: 509-529-4774

Book an Appointment with Marissa Lynn Cosaert

To schedule an appointment, contact Marissa Lynn Cosaert at 5 W Alder St Ste 333, Walla Walla, Washington or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Marissa Lynn Cosaert:

Marissa Lynn Cosaert 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, Marissa Lynn Cosaert is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Marissa Lynn Cosaert practices at 5 W Alder St Ste 333, Walla Walla, Washington, 99362-2849.

To schedule an appointment with Marissa Lynn Cosaert, please contact the office at 509-529-4774.

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