Petia Sierschynski

Mental Health Counselor


  9116 Gravelly Lake Dr Sw Ste 107, Lakewood
     Washington, 98499-3148
  253-256-5415    Maps & Directions
Petia Sierschynski is a Lakewood, Washington based counselor who is specialized as Mental Health Counselor. Active license number of Petia Sierschynski is MHCA.MC.61662933 for Mental Health Counselor in Washington. Her current practice location is 9116 Gravelly Lake Dr Sw Ste 107, Lakewood. Patients can book an appointment with her at 253-256-5415.
Petia Sierschynski 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:
Petia Sierschynski 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: Petia Sierschynski
Specialization: Mental Health Counselor
Gender:Female
Accepts Medicare Assignment:No
Practice Address:9116 Gravelly Lake Dr Sw Ste 107, Lakewood,
Washington, 98499-3148
Phone:253-256-5415
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: 1164255170
NPI Enumeration Date: 23 Aug, 2024
NPI Last Update On: 15 Jan, 2026

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Petia Sierschynski are as mentioned below.
License NumberSpecializationStateStatus
MHCA.MC.61662933Mental 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: 9116 Gravelly Lake Dr Sw Ste 107,
Lakewood, Washington
Zip: 98499-3148
Phone Number: 253-256-5415
Patients can reach Petia Sierschynski at 9116 Gravelly Lake Dr Sw Ste 107, Lakewood, Washington or can call to book an appointment on 253-256-5415.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.