NPPES file of Aug 9, 2026

Madhu Sudan, MD

Nephrology Physician · Covina, CA

Madhu Sudan, MD is a nephrology physician with a practice address in Covina, California, and NPI 1679674923, issued on Sep 26, 2006. Check the license (California A-31769, 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
1679674923
Name
Madhu Sudan
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A-31769 CA
Self-reported in NPPES; status is on the state search
Practice location
500 W Badillo St, Covina, CA 91722
Phone
(626) 915-6683
Enumerated
Sep 26, 2006
Record last updated
Sep 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(626) 915-6684
Medicaid ID
00A317690 CA
Medicare enrollment
Enrolled (PECOS I20060310000401); 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 500 W Badillo St

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

  1. Sajid Ali, M.D.Psychiatry Physician1386662740
  2. Nageswara Guntupalli, M.D.Psychiatry Physician1790886174
  3. Sultana Ikramullah, M.D.Psychiatry Physician1326065210
  4. Kristin Liang, PH.D.Clinical Psychologist1578796397
  5. Angela Rhodes, MFTMarriage & Family Therapist1790095164
  6. Ellen Serrano, MFTMarriage & Family Therapist1962674069

Verify Madhu Sudan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A-31769
    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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83% fewer Medicare Part D claims than the average nephrology physician in 2024

246 Medicare Part D claims for 23 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Madhu Sudan246
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium51 claims
  2. Atorvastatin Calcium24 claims
  3. Levothyroxine Sodium15 claims
  4. Terazosin Hcl15 claims
  5. Calcitriol13 claims
  6. Sevelamer Carbonate13 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: $24.32

1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Madhu Sudan$24.32
  2. Specialty average$3,091.37

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

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

Other nephrology physician records in California

  1. Antoine Abcar, MDLos Angeles, CA1245301159
  2. Basmah Abdalla, M.D.Los Angeles, CA1629394002
  3. Omaran Abdeen, M.D.Mission Hills, CA1700878410
  4. Joseph Abdelmalek, M.DSan Diego, CA1740485531
  5. Lama Abdelnour, MDLos Angeles, CA1477817542
  6. Amir Abdi Pour, MDLoma Linda, CA1912187477
  7. Anas Abou-Ismail, MDPalm Springs, CA1598078784
  8. Graham Abra, M.D.Stanford, CA1760644678
  9. Sreedhar Adapa, M.D.Visalia, CA1881997872
  10. Gbemisola Adenuga, M.D.Los Angeles, CA1952464661

Common questions

What is Madhu Sudan, MD's NPI number?

Madhu Sudan, MD's National Provider Identifier (NPI) is 1679674923, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Madhu Sudan, MD located?

The NPPES record lists a practice address at 500 W Badillo St, Covina, CA, 91722. Phone: (626) 915-6683. Providers update this record themselves, so call before visiting.

How can I verify Madhu Sudan, MD's license?

NPPES lists California license number A-31769, 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 Madhu Sudan, MD prescribe under Medicare Part D?

In 2024, Madhu Sudan, MD had 246 Medicare Part D claims for 23 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.