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

William Duff, MD

Individual provider Specialist · NPI 1447492954

William Duff, MD is a Specialist in Portland, Oregon. Practices as a sole proprietor. Licensed in Oregon.

Licensed in
OR
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

924 SW 16th Ave Apt 103
Portland, OR 97205-1734
Phone: (503) 294-1159
Fax: (503) 244-6175
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence MD09457 (OR)

Record details

NPI number1447492954
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 30, 2009
Last updated in NPPESMarch 30, 2009

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