Shaibal Mazumdar, M.D.
Gastroenterology Physician · Menomonee Falls, WI
Shaibal Mazumdar, M.D. is a gastroenterology physician with a practice address in Menomonee Falls, Wisconsin, and NPI 1093749566, issued on Jul 10, 2006. Check the license (Wisconsin 42898, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Shaibal Mazumdar
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 42898 WI
Self-reported in NPPES; status is on the state search - Practice location
- N84W16889 Menomonee Ave, Menomonee Falls, WI 53051
- Phone
- (262) 251-7500
- Enumerated
- Jul 10, 2006
- Record last updated
- Nov 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (262) 251-7128
- Medicaid ID
- 34047200 WI
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 340 in Wisconsin → Look up another NPI →
Also registered at N84W16889 Menomonee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Betsy Appel, MDSurgery Physician1780973420
- Denise Balistrieri, O.T.R.Occupational Therapist1750326997
- Jenna Biesterfeld, DPTPhysical Therapist1528957065
- Mary Birschbach, OTROccupational Therapist1477710929
- Heather Bougie, P.T.Physical Therapist1972531663
Verify Shaibal Mazumdar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 42898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average gastroenterology physician in 2024
860 Medicare Part D claims for 559 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Peg 3350-Electrolyte438 claims
- Omeprazole238 claims
- Pantoprazole Sodium40 claims
- Sucralfate19 claims
- Mesalamine12 claims
- Sod Sulf-Potass Sulf-Mag Sulf11 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: $416.31
4 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Shaibal Mazumdar among 340 gastroenterology physician records in Wisconsin
Shaibal Mazumdar, M.D. is one of 340 gastroenterology physician records with a practice address in Wisconsin. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 44% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Wisconsin
There are 340 gastroenterology physician records in Wisconsin.
All 340 in Wisconsin → Every provider in Menomonee Falls → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Melissa Earnest, M.D.Menomonee Falls, WI 530511023154903
- Peter Eichenseer, M.D.Menomonee Falls, WI 530511821289141
- Dana LeyMenomonee Falls, WI 530511215433735
- Syed Mehdi, M.D.Menomonee Falls, WI 530511518931138
- Michael Strupp, M.D.Summit, WI 530661992144844
- Tatyana Taranukha, M.D.Summit, WI 530661124361639
- Nimish Vakil, M.D.Summit, WI 530661336124585
- Nadia HuqHartford, WI 530271487073862
Common questions
What is Shaibal Mazumdar, M.D.'s NPI number?
Shaibal Mazumdar, M.D.'s National Provider Identifier (NPI) is 1093749566, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shaibal Mazumdar, M.D. located?
The NPPES record lists a practice address at N84W16889 Menomonee Ave, Menomonee Falls, WI, 53051. Phone: (262) 251-7500. Providers update this record themselves, so call before visiting.
How can I verify Shaibal Mazumdar, M.D.'s license?
NPPES lists Wisconsin license number 42898, 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 Shaibal Mazumdar, M.D. prescribe under Medicare Part D?
In 2024, Shaibal Mazumdar, M.D. had 860 Medicare Part D claims for 559 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.