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

Dr. Ronald S Sinclair, MD

Individual provider Internal Medicine Physician · NPI 1396741294

Dr. Ronald S Sinclair, MD is an Internal Medicine Physician in Grants Pass, 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

495 SW Ramsey A Ve
Grants Pass, OR 97527
Phone: (541) 476-6644
Fax: (541) 472-5673
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 MD15397 (OR)

Record details

NPI number1396741294
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 24, 2005
Last updated in NPPESJuly 8, 2007
Mailing address495 Sw Ramsey A Ve, Grants Pass, OR 97527

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