Shaibal Mazumdar, M.D.
NPI 1093749566 · Gastroenterology Physician · Menomonee Falls, WI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shaibal Mazumdar, M.D. is a Gastroenterology Physician provider in Menomonee Falls, WI (NPI 1093749566).
Provider details
- NPI number
- 1093749566
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 42898 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
237 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 36 | $59 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 33 | $199 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 28 | $140 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 28 | $205 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 26 | $76 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 438 | 421 |
| Omeprazole | 238 | 90 |
| Pantoprazole Sodium | 40 | 19 |
| Sucralfate | 19 | — |
| Mesalamine | 12 | — |
| Plecanatidebrand: Trulance | 11 | — |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$416 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is Shaibal Mazumdar's NPI number?
- Shaibal Mazumdar's National Provider Identifier (NPI) is 1093749566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shaibal Mazumdar's specialty?
- Shaibal Mazumdar is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Shaibal Mazumdar located?
- Shaibal Mazumdar's practice location on file with NPPES is N84w16889 Menomonee Ave, Menomonee Falls, WI 53051-2810.
- What is Shaibal Mazumdar's phone number?
- The practice phone number listed in the NPPES registry for Shaibal Mazumdar is (262) 251-7500.
- Does Shaibal Mazumdar accept Medicare?
- Shaibal Mazumdar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shaibal Mazumdar's NPI active?
- Yes — Shaibal Mazumdar's NPI (1093749566) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.