Lionel D'Souza, MD
NPI 1679733182 · Gastroenterology Physician · East Setauket, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lionel D'Souza, MD is a Gastroenterology Physician provider in East Setauket, NY (NPI 1679733182).
Provider details
- NPI number
- 1679733182
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 272023 (NY)
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
18 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
974 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) |
|---|---|---|
| Review By Radiologist of Image From Tube Placement Into Bile Duct Using an Endoscope74328 | 81 | $26 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 75 | $85 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 55 | $226 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 55 | $151 |
| Removal of Stone Or Debris From Bile Or Pancreatic Duct Using a Flexible Endoscope43264 | 53 | $238 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 120 | 53 |
| Famotidine | 56 | 16 |
| Omeprazole | 47 | 19 |
| Lipase/Protease/Amylasebrand: Creon | 20 | — |
| Lubiprostone | 19 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 17 | 17 |
| Dicyclomine Hcl | 14 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35,735 across 76 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
- 2008-06-10
- Last updated
- 2017-07-25
Frequently asked questions
- What is Lionel D'Souza's NPI number?
- Lionel D'Souza's National Provider Identifier (NPI) is 1679733182, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lionel D'Souza's specialty?
- Lionel D'Souza is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Lionel D'Souza located?
- Lionel D'Souza's practice location on file with NPPES is 3 Technology Dr, East Setauket, NY 11733-4064.
- What is Lionel D'Souza's phone number?
- The practice phone number listed in the NPPES registry for Lionel D'Souza is (631) 444-5220.
- Does Lionel D'Souza accept Medicare?
- Lionel D'Souza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lionel D'Souza's NPI active?
- Yes — Lionel D'Souza's NPI (1679733182) is active in the NPPES registry as of the last update on 2017-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.