Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Petia Sierschynski

Individual provider Mental Health Counselor · NPI 1164255170

Petia Sierschynski is a Mental Health Counselor in Lakewood, Washington. Licensed in Washington. Registered with an NPI since 2024.

Licensed in
WA
In the registry since
2024

Practice location Address checks out

9116 Gravelly Lake Dr SW Ste 107
Lakewood, WA 98499-3148
Phone: (253) 256-5415
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence MHCA.MC.61662933 (WA)

Record details

NPI number1164255170
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 23, 2024
Last updated in NPPESJanuary 15, 2026
Certification dateJanuary 15, 2026
Mailing address9116 Gravelly Lake Dr Sw Ste 107, Lakewood, WA 98499-3148

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