NPPES file of Aug 9, 2026

Kuan Wen Su, M.D.

Internal Medicine Physician · Alhambra, CA

Kuan Wen Su, M.D. is an internal medicine physician with a practice address in Alhambra, California, and NPI 1487722823, issued on Dec 2, 2006. Check the license (California C 42531, 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
1487722823
Name
Kuan Wen Su
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
C 42531 CA
Self-reported in NPPES; status is on the state search
Practice location
841 W Valley Blvd, Alhambra, CA 91803
Phone
(626) 282-8441
Enumerated
Dec 2, 2006
Record last updated
Feb 25, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(626) 282-2759
Medicare enrollment
Enrolled (PECOS I20070501000704); accepts Medicare assignment
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 841 W Valley Blvd

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

  1. Riyanto Quemena, D.P.M.Podiatrist1700835998
  2. Prasert Vassantachart, MDGeneral Practice Physician1295720050
  3. Prasert Vassantachart, PHARMDPharmacist1811246325
  4. Wai Kei Wong, NPAdult Health Nurse Practitioner1215368626

Verify Kuan Wen Su in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C 42531
    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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86% fewer Medicare Part D claims than the average internal medicine physician in 2024

452 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Kuan Su452
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium42 claims
  2. Furosemide33 claims
  3. Amlodipine Besylate32 claims
  4. Xarelto28 claims
  5. Simvastatin27 claims
  6. Atenolol22 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.

Industry payments in 2024: $108.73

5 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kuan Su$108.73
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

41 internal medicine physician records list a practice address in Alhambra

They are 41 of the 1,802 NPPES records with a practice address in Alhambra, and 17,696 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 Kuan Wen Su, M.D.'s NPI number?

Kuan Wen Su, M.D.'s National Provider Identifier (NPI) is 1487722823, issued on Dec 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kuan Wen Su, M.D. located?

The NPPES record lists a practice address at 841 W Valley Blvd, Alhambra, CA, 91803. Phone: (626) 282-8441. Providers update this record themselves, so call before visiting.

How can I verify Kuan Wen Su, M.D.'s license?

NPPES lists California license number C 42531, 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 Kuan Wen Su, M.D. prescribe under Medicare Part D?

In 2024, Kuan Wen Su, M.D. had 452 Medicare Part D claims for 19 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.