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

Mr. Christopher C. Losiewski, MSW

Individual provider Social Worker · NPI 1932592086

Mr. Christopher C. Losiewski, MSW is a Social Worker in Portland, Oregon. Practices as a sole proprietor. Registered with an NPI since 2015.

In the registry since
2015
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

2701 NW Vaughn St Ste 140
Portland, OR 97210-5344
Phone: (503) 499-5200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1932592086
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorYes
NPI enumeratedMarch 13, 2015
Last updated in NPPESMarch 13, 2015

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