NPPES file of Aug 9, 2026

Young In Song, DO

Internal Medicine Physician · Los Angeles, CA

Young In Song, DO is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1356085682, issued on Apr 22, 2022. Check the license (California 20A21442, 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
1356085682
Name
Young In Song
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A21442 CA
Self-reported in NPPES; status is on the state search
Practice location
1731 E 120TH St, Los Angeles, CA 90059
Phone
(323) 563-4991
Enumerated
Apr 22, 2022
Record last updated
Apr 12, 2026
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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Also registered at 1731 E 120TH St

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

  1. Saimon Acevedo OrtizStudent in an Organized Health Care Education/Training Program1295619229
  2. Natalie AcevesStudent in an Organized Health Care Education/Training Program1831035682
  3. Jillian Acosta, MDStudent in an Organized Health Care Education/Training Program1972422277
  4. Manuel Acuna, MDStudent in an Organized Health Care Education/Training Program1235077439
  5. Temiloluwa AdanlawoStudent in an Organized Health Care Education/Training Program1457226482
  6. Rutha AdhanomStudent in an Organized Health Care Education/Training Program1073487161

Verify Young In Song in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A21442
    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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96% fewer Medicare Part D claims than the average internal medicine physician in 2024

126 Medicare Part D claims for 30 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Young Song126
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate11 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.

Young In Song among 17,696 internal medicine physician records in California

Young In Song, DO 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 2022, is newer than 95% of them.

  • NPI issued2022 · 95% of these records are older, 2% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • 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).

1,423 internal medicine physician records list a practice address in Los Angeles

They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Vijay Bhasin, M.D.Los Angeles, CA 900591184794133
  2. Dennis Bleakley, M.D.Los Angeles, CA 900591467527382
  3. Allen Funnye, M.D.Los Angeles, CA 900591306956107
  4. Clemens Hong, M.D.Los Angeles, CA 900591275559528
  5. Vidya Kaushik, M.D.Los Angeles, CA 900591285704239
  6. Jan King, M.D., M.P.H.Los Angeles, CA 900591003086828
  7. John Koo, MDLos Angeles, CA 900591477617561
  8. Keith Norris, MDLos Angeles, CA 900591033245808

Common questions

What is Young In Song, DO's NPI number?

Young In Song, DO's National Provider Identifier (NPI) is 1356085682, issued on Apr 22, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Young In Song, DO located?

The NPPES record lists a practice address at 1731 E 120TH St, Los Angeles, CA, 90059. Phone: (323) 563-4991. Providers update this record themselves, so call before visiting.

How can I verify Young In Song, DO's license?

NPPES lists California license number 20A21442, 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 Young In Song, DO prescribe under Medicare Part D?

In 2024, Young In Song, DO had 126 Medicare Part D claims for 30 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.