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

McKenzie L Sienkiewich

Individual provider Behavior Analyst · NPI 1124673934

McKenzie L Sienkiewich is a Behavior Analyst in Spanaway, Washington. Licensed in Washington. Registered with an NPI since 2019.

Licensed in
WA
In the registry since
2019

Practice location Address checks out

27421 30th Ave E
Spanaway, WA 98387
Phone: (253) 341-2835
Show map & directions

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

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X · Licence RBT-19-9158 (WA)

Record details

NPI number1124673934
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 8, 2019
Last updated in NPPESNovember 6, 2024
Mailing address27421 30th Ave E, Spanaway, WA 98387

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