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

Matthew Ryan Riley, MD

Individual provider Pediatric Gastroenterology Physician · NPI 1164486759

Matthew Ryan Riley, MD is a Pediatric Gastroenterology Physician 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?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 N Graham St Ste 420
Portland, OR 97227-1683
Phone: (503) 281-5139
Fax: (503) 249-3782
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Gastroenterology Physician (primary) Taxonomy 2080P0206X · Licence MD23166 (OR)

Record details

NPI number1164486759
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2006
Last updated in NPPESNovember 5, 2008
Mailing address300 N Graham St, Suite 420, Portland, OR 97227-1683

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