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

Michael J Clayton, MD

Individual provider Internal Medicine Physician · NPI 1497785786

Michael J Clayton, MD is an Internal Medicine 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.

See every abbreviation used in this directory →

Practice location Address checks out

4805 NE Glisan St Ste BG05
Portland, OR 97213-2933
Phone: (503) 215-2392
Fax: (503) 215-6918
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD24189 (OR)

Record details

NPI number1497785786
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 3, 2006
Last updated in NPPESJune 2, 2008

Other providers in Portland