NPPES file of Aug 9, 2026

Tyler Duong

Internal Medicine Physician · Los Angeles, CA

Tyler Duong is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1487794277, issued on Feb 8, 2007. Check the license (California RN588046, 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
1487794277
Name
Tyler Duong
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
RN588046 CA
Self-reported in NPPES; status is on the state search
Practice location
245 S Fetterly Ave, Los Angeles, CA 90022
Phone
(323) 780-2216
Enumerated
Feb 8, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(323) 264-3771
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 245 S Fetterly Ave

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

  1. Agustin Abdallah, M.D.Internal Medicine Physician1134524184
  2. Kristine AdzhemyanAmbulatory Care Pharmacist1306579131
  3. Lupe AlvaradoAmbulatory Care Registered Nurse1962925933
  4. Susan AndersonFamily Medicine Physician1447390216
  5. Manuel ArellanoAmbulatory Care Registered Nurse1124650874
  6. Esmeralda Bedoy, REGISTERED NURSEAmbulatory Care Registered Nurse1942084389

Verify Tyler Duong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license RN588046
    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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100% fewer Medicare Part D claims than the average internal medicine physician in 2024

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

  1. Tyler Duong15
  2. Specialty average3,176

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.

Tyler Duong among 17,696 internal medicine physician records in California

Tyler Duong 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 updated2007 · 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. Arta Bakshandeh, D.O.East Los Angeles, CA 900221982931853
  2. Michael Block, MDLos Angeles, CA 900221134203656
  3. Kusum ChaudryLos Angeles, CA 900221215077094
  4. David De La Loza, MDLos Angeles, CA 900221346326394
  5. Selena Huey, M.D.Los Angeles, CA 900221760765044
  6. Alberto Jimeno, MDLos Angeles, CA 900221629164900
  7. Lloyd Johnson, M.D., PH.D.Los Angeles, CA 900221205913753
  8. Moe Kyi, M.D.Los Angeles, CA 900221487932612

Common questions

What is Tyler Duong's NPI number?

Tyler Duong's National Provider Identifier (NPI) is 1487794277, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Tyler Duong located?

The NPPES record lists a practice address at 245 S Fetterly Ave, Los Angeles, CA, 90022. Phone: (323) 780-2216. Providers update this record themselves, so call before visiting.

How can I verify Tyler Duong's license?

NPPES lists California license number RN588046, 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 Tyler Duong prescribe under Medicare Part D?

In 2024, Tyler Duong had 15 Medicare Part D claims; 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.