NPPES file of Aug 9, 2026

Hyesun Kim, M.D.

Internal Medicine Physician · Irvine, CA

Hyesun Kim, M.D. is an internal medicine physician with a practice address in Irvine, California, and NPI 1518157585, issued on Jul 26, 2007. Check the license (California A100945, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518157585
Name
Hyesun Kim
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A100945 CA
Self-reported in NPPES; status is on the state search
Practice location
62 Corporate Park Ste 115, Irvine, CA 92606
Phone
(949) 752-7575
Enumerated
Jul 26, 2007
Record last updated
Sep 2, 2022
Fax
(949) 752-0077
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Hyesun Kim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A100945
    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

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73% fewer Medicare Part D claims than the average internal medicine physician in 2024

861 Medicare Part D claims for 90 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Hyesun Kim861
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium117 claims
  2. Losartan Potassium99 claims
  3. Amlodipine Besylate87 claims
  4. Simvastatin36 claims
  5. Metformin Hcl32 claims
  6. Levothyroxine Sodium29 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $71.44

3 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hyesun Kim$71.44
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Hyesun Kim among 17,696 internal medicine physician records in California

Hyesun Kim, 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 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 44% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2022 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mamak Eatesam, M.D.Irvine, CA 926061407139314
  2. Stuart Gilman, MDIrvine, CA 926061184681041
  3. Roya Hormozdiaran, MD,Irvine, CA 926061427245349
  4. Farhad Nassiri Afshar, MDIrvine, CA 926061639889165
  5. James Strebig, MDIrvine, CA 926061093716151
  6. Omid Vesal, M.D.Irvine, CA 926061003856204
  7. Samy Younis, M.D.Irvine, CA 926061922115203
  8. Lawrence AhnIrvine, CA 926041942836945

Common questions

What is Hyesun Kim, M.D.'s NPI number?

Hyesun Kim, M.D.'s National Provider Identifier (NPI) is 1518157585, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hyesun Kim, M.D. located?

The NPPES record lists a practice address at 62 Corporate Park Ste 115, Irvine, CA, 92606. Phone: (949) 752-7575. Providers update this record themselves, so call before visiting.

How can I verify Hyesun Kim, M.D.'s license?

NPPES lists California license number A100945, 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.

How much does Hyesun Kim, M.D. prescribe under Medicare Part D?

In 2024, Hyesun Kim, M.D. had 861 Medicare Part D claims for 90 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.

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.