NPPES file of Aug 9, 2026

Kevin Haonan Sun, M.D.

Internal Medicine Physician · Irvine, CA

Kevin Haonan Sun, M.D. is an internal medicine physician with a practice address in Irvine, California, and NPI 1265726517, issued on Jun 3, 2011. Check the license (California A125393, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265726517
Name
Kevin Haonan Sun
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A125393 CA
Self-reported in NPPES; status is on the state search
Practice location
11 Technology Dr, Irvine, CA 92618
Phone
(949) 923-3200
Enumerated
Jun 3, 2011
Record last updated
Jan 12, 2026
Medicare enrollment
Enrolled (PECOS I20170113000731); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 11 Technology Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria Teresa Agner, MDInternal Medicine Physician1013087410
  2. Ali Ahoui, MDHospitalist Physician1093964769
  3. Nidal Al Hannat, M.D.Internal Medicine Physician1235335563
  4. Richard AppelInternal Medicine Physician1336225044
  5. Juan Cabrera, M.D.Internal Medicine Physician1447254792
  6. Houman Danesh, M.D.Internal Medicine Physician1205027802

Verify Kevin Haonan Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A125393    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Healthcare Partners Affiliates Medical GroupSanta Ana, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kevin Haonan Sun among 17,696 internal medicine physician records in California

Kevin Haonan Sun, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.

  • NPI issued2011 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2011 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

155 internal medicine physician records list a practice address in Irvine

They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California.

All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Savitha Bharadwaj, M.D.Irvine, CA 926181760470926
  2. Juan Cabrera, M.D.Irvine, CA 926181447254792
  3. William Chen, M.D.Irvine, CA 926181881659142
  4. Subrato Ghosh, MDIrvine, CA 926181083607055
  5. Kambiz Karimi, M.D.Irvine, CA 926181184688475
  6. Sara Kim, M.D.Irvine, CA 926181912944166
  7. Brian Lo, MDIrvine, CA 926181073501565
  8. Emad Mikhail, MDIrvine, CA 926181376582957

Common questions

What is Kevin Haonan Sun, M.D.'s NPI number?

Kevin Haonan Sun, M.D.'s National Provider Identifier (NPI) is 1265726517, issued on Jun 3, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Kevin Haonan Sun, M.D. located?

The NPPES record lists a practice address at 11 Technology Dr, Irvine, CA, 92618. Phone: (949) 923-3200. Providers update this record themselves, so call before visiting.

How can I verify Kevin Haonan Sun, M.D.'s license?

NPPES lists California license number A125393, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.