Registry data as of Aug 27, 2026

Johny Cu, MD

Internal Medicine Physician · West Covina, CA

Johny Cu, MD is an internal medicine physician with a practice address in West Covina, California, and NPI 1336223569, issued on Oct 24, 2006. Check the license (California A35970, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1336223569
Name
Johny Cu
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A35970 CA
Self-reported in NPPES; status is on the state search
Practice location
1535 W Merced Ave, West Covina, CA 91790
Phone
(626) 331-6411
Enumerated
Oct 24, 2006
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 1535 W Merced Ave

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

  1. Sadhna Dhand, M.D.General Practice Physician1033394531
  2. Sara Dhand, MDPsychiatry Physician1669665063
  3. Subhash Dhand, M.D.Hematology & Oncology Physician1497930903
  4. Santosh Garg, MDPediatrics Physician1093772659
  5. Mohd. Qaisar Khan, MDCardiovascular Disease Physician1487670485
  6. Angela Ni, MDGeneral Practice Physician1962467423

Verify Johny Cu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A35970
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

99% fewer Medicare Part D claims than the average internal medicine physician in 2024

26 Medicare Part D claims, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.

  1. Johny Cu26
  2. Specialty average2,785

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.

24 internal medicine physician records list a West Covina practice address

They are 24 of the 2,450 NPPES records with a West Covina practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Johny Cu, MD's NPI number?

Johny Cu, MD's National Provider Identifier (NPI) is 1336223569, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Johny Cu, MD located?

The NPPES record lists a practice address at 1535 W Merced Ave, West Covina, CA, 91790. Phone: (626) 331-6411. Providers update this record themselves, so call before visiting.

How can I verify Johny Cu, MD's license?

NPPES lists California license number A35970, 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 Johny Cu, MD prescribe under Medicare Part D?

In 2024, Johny Cu, MD had 26 Medicare Part D claims; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.