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

Individual provider Internal Medicine Physician · NPI 1518053388

Dr. Ronald D Grewenow, MD is an Internal Medicine Physician in Portland, Oregon. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
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

3710 SW US Veterans Hospital Rd P3GP1
Portland, OR 97239-2964
Phone: (503) 721-7897
Fax: (503) 721-1410
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G27834 (CA)

Record details

NPI number1518053388
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESJuly 8, 2007

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