NPI Portal NPI Lookup & Verification

Internal Medicine in Ontario, OR

9 active Internal Medicine providers practice in Ontario, Oregon according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Internal Medicine providers in Ontario, OR
NPI Name Type Specialty Location
1093779365 Andrew Peterson Individual Internal Medicine Physician Ontario, OR
1811953854 Holy Rosary Medical Center Organization Internal Medicine Physician Ontario, OR
1922066786 Holy Rosary Medical Center Organization Internal Medicine Physician Ontario, OR
1023500808 Jared Van Orman Individual Internal Medicine Physician Ontario, OR
1477567485 John Phillips Individual Internal Medicine Physician Ontario, OR
1487611877 Morris Smith Individual Internal Medicine Physician Ontario, OR
1093034159 Saint Alphonsus Medical Center- Ontario Inc Organization Internal Medicine Physician Ontario, OR
1629397781 Saint Alphonsus Medical Center- Ontario Inc Organization Internal Medicine Physician Ontario, OR
1316107782 Stark Medical, PC Organization Internal Medicine Physician Ontario, OR

Frequently asked questions

How many Internal Medicine providers are in Ontario, OR?
The latest NPPES snapshot lists 9 active Internal Medicine providers with a practice address in Ontario, Oregon.
How do I check a Internal Medicine provider's NPI in Ontario?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-11.