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

Steven Jon Mason, MD

Individual provider Gastroenterology Physician · NPI 1174519524

Steven Jon Mason, MD is a Gastroenterology Physician in Oregon City, 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.

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Practice location Address checks out

1508 Division St Ste 15
Oregon City, OR 97045-1582
Phone: (503) 692-3750
Fax: (503) 691-2324
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD10313 (OR)

Record details

NPI number1174519524
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2005
Last updated in NPPESOctober 11, 2013
Mailing address847 Ne 19th Ave, Suite 300, Portland, OR 97232-2684

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