Physician Profile
Karen Sun, M.D.
Unclaimed ProfileAbout Dr. Sun
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Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (949) 768-6780
- Email not available
Practice Locations
4 HUGHES STE 150
Irvine, CA 92618
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 8 related providers in 1 group
Common questions
What kind of doctor is Karen Sun?
Karen Sun is an internist in Irvine, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Karen Sun's address?
Karen Sun is listed at 4 Hughes Ste 150, Irvine, CA 92618. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Karen Sun?
The number on file is (949) 768-6780. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Karen Sun's NPI number?
Karen Sun's National Provider Identifier is 1326229220. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Karen Sun been practicing?
Karen Sun has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Karen Sun confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Karen Sun. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.