NPPES file of Aug 9, 2026

Sameer Gupta, MD

Nephrology Physician · Fond Du Lac, WI

Sameer Gupta, MD is a nephrology physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1669638508, issued on Jul 30, 2008. Check the license (Wisconsin 55235, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1669638508
Name
Sameer Gupta
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
55235 WI
Self-reported in NPPES; status is on the state search
Practice location
420 E Division St, Fond Du Lac, WI 54934
Phone
(920) 926-8573
Enumerated
Jul 30, 2008
Record last updated
Oct 26, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110722000290); 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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Verify Sameer Gupta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 55235
    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 Wisconsin license search

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51% more Medicare Part D claims than the average nephrology physician in 2024

2,218 Medicare Part D claims for 383 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Sameer Gupta2,218
  2. Specialty average1,465

Most prescribed

  1. Allopurinol225 claims
  2. Losartan Potassium212 claims
  3. Lisinopril194 claims
  4. Jardiance176 claims
  5. Nifedipine Er148 claims
  6. Amlodipine Besylate133 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: $53.53

2 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. 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. Sameer Gupta$53.53
  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.

Bills Medicare through one group practice

  1. Agnesian Healthcare IncFond Du Lac, WI

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

Sameer Gupta among 207 nephrology physician records in Wisconsin

Sameer Gupta, MD is one of 207 nephrology physician records with a practice address in Wisconsin. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.

  • NPI issued2008 · 55% of these records are older, 38% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2007 · median 2004 among the 157 with a school on file
  • Record last updated2020 · 51% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Wisconsin

There are 207 nephrology physician records in Wisconsin.

The 8 nephrology physician records with the nearest ZIP codes

  1. Bret Pasiuk, M.D.Fond Du Lac, WI 549351447242490
  2. Jahangir Momin, MDAppleton, WI 549151376578518
  3. Osaid Ahmad, MDNeenah, WI 549561689618589
  4. Imran Baloch, M.DNeenah, WI 549561659399822
  5. David Koeper, MDNeenah, WI 549561487698387
  6. Atif Qureshi, MDNeenah, WI 549561629014790
  7. Kim Riess-Sagers, MDNeenah, WI 549561235173121
  8. Tazeen Jafar, MDAppleton, WI 549111174574412

Common questions

What is Sameer Gupta, MD's NPI number?

Sameer Gupta, MD's National Provider Identifier (NPI) is 1669638508, issued on Jul 30, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Sameer Gupta, MD located?

The NPPES record lists a practice address at 420 E Division St, Fond Du Lac, WI, 54934. Phone: (920) 926-8573. Providers update this record themselves, so call before visiting.

How can I verify Sameer Gupta, MD's license?

NPPES lists Wisconsin license number 55235, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sameer Gupta, MD prescribe under Medicare Part D?

In 2024, Sameer Gupta, MD had 2,218 Medicare Part D claims for 383 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.