NPPES file of Aug 9, 2026

Ryan Uyan, MD

Geriatric Medicine (Internal Medicine) Physician · Monterey Park, CA

Ryan Uyan, MD is a geriatric medicine (internal medicine) physician with a practice address in Monterey Park, California, and NPI 1275996050, issued on Mar 30, 2016. Check the license (California A160771, 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
1275996050
Name
Ryan Uyan
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
A160771 CA
Self-reported in NPPES; status is on the state search
Practice location
525 N Garfield Ave, Monterey Park, CA 91754
Phone
(626) 573-2222
Enumerated
Mar 30, 2016
Record last updated
Jan 16, 2024
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 525 N Garfield Ave

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

  1. Alex Alexani, CRT, RCP, AOSPulmonary Diagnostics Certified Respiratory Therapist1396267936
  2. Htoo Htoo Aung, MDInternal Medicine Physician1942615075
  3. Connie Chan, D.O.Emergency Medicine Physician1639105745
  4. Randall Chan, MDInternal Medicine Physician1265969273
  5. Adeline ChiangCritical Care Medicine Registered Nurse1922942531
  6. Cynthia Chinn, MDAnesthesiology Physician1427355981

Verify Ryan Uyan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A160771
    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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90% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

435 Medicare Part D claims for 173 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 31 claims were for opioids.

  1. Ryan Uyan435
  2. Specialty average4,246

Most prescribed

  1. Pantoprazole Sodium25 claims
  2. Prednisone23 claims
  3. Amoxicillin-Clavulanate Potass22 claims
  4. Levofloxacin19 claims
  5. Atorvastatin Calcium17 claims
  6. Hydrocodone-Acetaminophen17 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.

Ryan Uyan among 532 geriatric medicine (internal medicine) physician records in California

Ryan Uyan, MD is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 84% of them.

  • NPI issued2016 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 51% of these records are
  • Record last updated2024 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in California

There are 532 geriatric medicine (internal medicine) physician records in California.

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Hedy Loa, MDOntario, CA 917621093720666
  2. Albert Bui, M.D.Hacienda Heights, CA 917451548536188
  3. Sudhakar Kona, MDPomona, CA 917671619080215
  4. Dan Tran, M.D.Rosemead, CA 917701487709747
  5. Anthony Kingsley, MDEl Monte, CA 917331750456349
  6. Oscar Chien, M.D.San Gabriel, CA 917761679675904
  7. Khine Phyu, MDEl Monte, CA 917311639296700
  8. Harvey Cohen, MDRancho Cucamonga, CA 917301972517423

Common questions

What is Ryan Uyan, MD's NPI number?

Ryan Uyan, MD's National Provider Identifier (NPI) is 1275996050, issued on Mar 30, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Uyan, MD located?

The NPPES record lists a practice address at 525 N Garfield Ave, Monterey Park, CA, 91754. Phone: (626) 573-2222. Providers update this record themselves, so call before visiting.

How can I verify Ryan Uyan, MD's license?

NPPES lists California license number A160771, 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 Ryan Uyan, MD prescribe under Medicare Part D?

In 2024, Ryan Uyan, MD had 435 Medicare Part D claims for 173 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.