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

Dr. Larry A Heinonen, MD

Individual provider Gastroenterology Physician · NPI 1669478343

Dr. Larry A Heinonen, MD is a Gastroenterology Physician in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2005.

Licensed in
OR
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

9701 SW Barnes Rd Ste 300
Portland, OR 97225-6689
Phone: (503) 297-8081
Fax: (503) 292-6601
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD09495 (OR)

Record details

NPI number1669478343
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESAugust 19, 2008

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