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

Dr. Duncan A Riddell, MD

Individual provider Otolaryngology Physician · NPI 1801993829

Dr. Duncan A Riddell, MD is an Otolaryngology Physician in Edmonds, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
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

21616 76th Ave W Ste 112
Edmonds, WA 98026-7512
Phone: (425) 775-6651
Fax: (425) 670-6718
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence MD00029782 (WA)

Record details

NPI number1801993829
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESOctober 24, 2011

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