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

Mr. James William Siefert

Individual provider Case Manager/Care Coordinator · NPI 1467661389

Mr. James William Siefert is a Case Manager/Care Coordinator in Portland, Oregon. Practices as a sole proprietor. Registered with an NPI since 2007.

In the registry since
2007
Specialties on file
2

Practice location Address checks out

907 NE 47th Ave 3
Portland, OR 97213-2225
Phone: (360) 513-7382
Show map & directions

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

Specialties & licences

Case Manager/Care Coordinator (primary) Taxonomy 171M00000X
Adult Companion Taxonomy 372600000X

Record details

NPI number1467661389
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMay 21, 2007
Last updated in NPPESSeptember 11, 2025

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