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

Dr. Margaret Koch Warren, PHD

Individual provider Clinical Psychologist · NPI 1740499540

Dr. Margaret Koch Warren, PHD is a Clinical Psychologist in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2007.

Licensed in
OR
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

412 SW 12th Ave
Portland, OR 97205-2329
Phone: (503) 228-7134
Fax: (503) 445-0749
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X
Clinical Psychologist Taxonomy 103TC0700X · Licence 1695 (OR)

Record details

NPI number1740499540
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 21, 2007
Last updated in NPPESMay 12, 2011

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