NPPES file of Aug 9, 2026

Jennifer V. Kumar, M.D.

Nephrology Physician · Santa Clara, CA

Jennifer V. Kumar, M.D. is a nephrology physician with a practice address in Santa Clara, California, and NPI 1457617896, issued on Apr 10, 2012. Check the license (California A129176, 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
1457617896
Name
Jennifer V. Kumar
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
A129176 CA
16978 NV
Self-reported in NPPES; status is on the state search
Practice location
700 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-1000
Enumerated
Apr 10, 2012
Record last updated
Jan 9, 2025
Medicaid ID
1457617896 NV
Medicare enrollment
Enrolled (PECOS I20160421001661); accepts Medicare assignment
Medical or professional school
State University Of New York At Buffalo School Of Medicine, 2012
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 700 Lawrence Expy

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

  1. Rose Abendroth, P.A-C PHDPhysician Assistant1568471126
  2. Joseph Adams, PHARMD.Pharmacist1851625024
  3. Netali AdielDoula1003770652
  4. Abdallah Al-ObaidiStudent in an Organized Health Care Education/Training Program1255133781
  5. Andrea Mae AlafrizPharmacist1770450967
  6. Andria AlbertStudent in an Organized Health Care Education/Training Program1992565493

Verify Jennifer V. Kumar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A129176
    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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16% fewer Medicare Part D claims than the average nephrology physician in 2024

1,233 Medicare Part D claims for 181 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Jennifer Kumar1,233
  2. Specialty average1,465

Most prescribed

  1. Farxiga96 claims
  2. Losartan Potassium88 claims
  3. Nifedipine Er66 claims
  4. Calcitriol61 claims
  5. Furosemide54 claims
  6. Amlodipine Besylate53 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSanta Clara, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jennifer V. Kumar among 1,468 nephrology physician records in California

Jennifer V. Kumar, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 80% of them.

  • NPI issued2012 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2012 · median 2001 among the 1,128 with a school on file
  • Record last updated2025 · 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 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Ajit Mahapatra, MDSanta Clara, CA 950511699853275
  2. Sami Mazbar, MDSanta Clara, CA 950511134206063
  3. Prachi Jog, M.D., M.SSanta Cruz, CA 950621770779431
  4. William Raffo, M.D.Santa Cruz, CA 950621659356137
  5. Shraddha Rana, M.DSanta Cruz, CA 950621538459961
  6. Surinder Kumar, M.D., FACP,FASN,CCDSanta Cruz, CA 950651437241809
  7. Maritina Rodriguez, M.D.Santa Cruz, CA 950651063504447
  8. Gurbir Singh, MDSanta Cruz, CA 950651760861322

Common questions

What is Jennifer V. Kumar, M.D.'s NPI number?

Jennifer V. Kumar, M.D.'s National Provider Identifier (NPI) is 1457617896, issued on Apr 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer V. Kumar, M.D. located?

The NPPES record lists a practice address at 700 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-1000. Providers update this record themselves, so call before visiting.

How can I verify Jennifer V. Kumar, M.D.'s license?

NPPES lists California license number A129176, 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 Jennifer V. Kumar, M.D. prescribe under Medicare Part D?

In 2024, Jennifer V. Kumar, M.D. had 1,233 Medicare Part D claims for 181 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.