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

Martha E. Duffy, RD

Individual provider Registered Dietitian · NPI 1245247170

Martha E. Duffy, RD is a Registered Dietitian in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2006.

Licensed in
OR
In the registry since
2006
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

707 SW Gaines St
Portland, OR 97239-2901
Phone: (800) 452-3563
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 692 (OR)

Record details

NPI number1245247170
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD
Sole proprietorNo
NPI enumeratedAugust 2, 2006
Last updated in NPPESJuly 8, 2007

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