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

Dr. Eric James Gureghian, MD

Individual provider Internal Medicine Physician · NPI 1942293006

Dr. Eric James Gureghian, MD is an Internal Medicine Physician in Ontario, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
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

3990 Concours Ste 500
Ontario, CA 91764-7970
Phone: (909) 605-8000
Fax: (866) 551-0236
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 A60427 (CA)

Record details

NPI number1942293006
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 24, 2005
Last updated in NPPESJune 29, 2016

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