NPPES file of Aug 9, 2026

Yoon Kyu Sung, MD

Family Medicine Physician · Los Angeles, CA

Yoon Kyu Sung, MD is a family medicine physician with a practice address in Los Angeles, California, and NPI 1851853550, issued on Apr 2, 2019. Check the license (California A180659, 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
1851853550
Name
Yoon Kyu Sung
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A180659 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Ucla Medical Plz Ste 420, Los Angeles, CA 90095
Phone
(310) 206-6232
Enumerated
Apr 2, 2019
Record last updated
Jan 4, 2024
Medicare enrollment
Enrolled (PECOS I20220705001435); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2019
Telehealth
Offers telehealth (CMS)
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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Also registered at 200 Ucla Medical Plz Ste 420

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

  1. Monica Abreu DiazInternal Medicine Physician1598294126
  2. Maya Appley, MDAddiction Medicine (Internal Medicine) Physician1588160451
  3. Michael Ayoub, M.D.Internal Medicine Physician1215356647
  4. Douglas Bell, MDInternal Medicine Physician1174549372
  5. Mark Benor, MDFamily Medicine Physician1457568362
  6. Shiela Beroukhim AfrahimiInternal Medicine Physician1386141885

Verify Yoon Kyu Sung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A180659
    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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98% fewer Medicare Part D claims than the average family medicine physician in 2024

85 Medicare Part D claims for 60 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Yoon Kyu Sung85
  2. Specialty average3,544

Most prescribed

  1. Amoxicillin-Clavulanate Potass17 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.

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaLos Angeles, CA

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

Yoon Kyu Sung among 17,133 family medicine physician records in California

Yoon Kyu Sung, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2019 · median 2005 among the 10,652 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

829 family medicine physician records list a practice address in Los Angeles

They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Lawrence Adler, MDLos Angeles, CA 900951285782292
  2. Mark Benor, MDLos Angeles, CA 900951457568362
  3. Denise Freese, MDLos Angeles, CA 900951194750844
  4. Erin Gleason, M.D.Los Angeles, CA 900951225252760
  5. Michele Hoh, MDLos Angeles, CA 900951689685281
  6. Richard Kennedy, MDLos Angeles, CA 900951457370959
  7. Sandy Lai, M.D.Los Angeles, CA 900951871674390
  8. Jamie McKinney, M.D.Los Angeles, CA 900951245516145

Common questions

What is Yoon Kyu Sung, MD's NPI number?

Yoon Kyu Sung, MD's National Provider Identifier (NPI) is 1851853550, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Yoon Kyu Sung, MD located?

The NPPES record lists a practice address at 200 Ucla Medical Plz Ste 420, Los Angeles, CA, 90095. Phone: (310) 206-6232. Providers update this record themselves, so call before visiting.

How can I verify Yoon Kyu Sung, MD's license?

NPPES lists California license number A180659, 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 Yoon Kyu Sung, MD prescribe under Medicare Part D?

In 2024, Yoon Kyu Sung, MD had 85 Medicare Part D claims for 60 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.