Sierra Mackenzie Osmers

Mental Health Counselor


  2148 Waverly Pl N Apt 2c, Seattle
     Washington, 98109-2473
  360-951-3078    Maps & Directions
Sierra Mackenzie Osmers is a Seattle, Washington based counselor who is specialized as Mental Health Counselor. Active license number of Sierra Mackenzie Osmers is LF70008201 for Mental Health Counselor in Washington. Her current practice location is 2148 Waverly Pl N Apt 2c, Seattle. Patients can book an appointment with her at 360-951-3078.
Sierra Mackenzie Osmers 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.
Complete Profile:
Sierra Mackenzie Osmers speciality, credentials, practice address, contact phone number and fax are as below. Patients can directly walk in or can call on the below given phone number for appointment.
Name: Sierra Mackenzie Osmers
Specialization: Mental Health Counselor
Gender:Female
Accepts Medicare Assignment:No
Practice Address:2148 Waverly Pl N Apt 2c, Seattle,
Washington, 98109-2473
Phone:360-951-3078
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 Number: 1780464958
NPI Enumeration Date: 04 Oct, 2023
NPI Last Update On: 03 Dec, 2025

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Sierra Mackenzie Osmers are as mentioned below.
License NumberSpecializationStateStatus
LF70008201Mental Health Counselor WashingtonPrimary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 2148 Waverly Pl N Apt 2c,
Seattle, Washington
Zip: 98109-2473
Phone Number: 360-951-3078
Patients can reach Sierra Mackenzie Osmers at 2148 Waverly Pl N Apt 2c, Seattle, Washington or can call to book an appointment on 360-951-3078.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.