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

Individual provider Behavior Analyst · NPI 1649912684

Joshua James Siewert, RBT is a Behavior Analyst in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2022.

Licensed in
WA
In the registry since
2022
What do these letters mean?
RBT — Registered Behavior Technician
Delivers behaviour therapy under a behaviour analyst's supervision.

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Practice location Address checks out

6112 Gould Ave S
Seattle, WA 98108-2959
Phone: (206) 930-2438
Fax: (206) 299-9327
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X · Licence APF-1639352293-25666 (WA)

Record details

NPI number1649912684
Entity typeIndividual (Type 1)
GenderMale
Credentials RBT
Sole proprietorNo
NPI enumeratedApril 11, 2022
Last updated in NPPESApril 11, 2022
Certification dateApril 11, 2022

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