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

Dr. Karen Sun, MD

Individual provider Internal Medicine Physician · NPI 1326229220

Dr. Karen Sun, MD is an Internal Medicine Physician in Irvine, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
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

4 Hughes Ste 150
Irvine, CA 92618-2044
Phone: (949) 768-6780
Fax: (949) 768-6782
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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 A41436 (CA)

Record details

NPI number1326229220
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 19, 2007
Last updated in NPPESNovember 19, 2007
Mailing address4 Hughes Ste 150, Irvine, CA 92618-2044

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