Eugene Sullivan, D.O.
NPI 1083633408 · Gastroenterology Physician · Garden City, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eugene Sullivan, D.O. is a Gastroenterology Physician provider in Garden City, NY (NPI 1083633408).
Provider details
- NPI number
- 1083633408
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 227428 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
836 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 271 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 269 | $144 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 83 | $128 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 62 | $191 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 46 | $154 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 391 | 143 |
| Omeprazole | 188 | 66 |
| Famotidine | 155 | 56 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 140 | 121 |
| Dicyclomine Hcl | 53 | 20 |
| Mesalamine | 47 | 11 |
| Rabeprazole Sodium | 36 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2012-07-16
Frequently asked questions
- What is Eugene Sullivan's NPI number?
- Eugene Sullivan's National Provider Identifier (NPI) is 1083633408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugene Sullivan's specialty?
- Eugene Sullivan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene Sullivan located?
- Eugene Sullivan's practice location on file with NPPES is 1103 Stewart Ave, Garden City, NY 11530-4886.
- What is Eugene Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Eugene Sullivan is (516) 248-3737.
- Does Eugene Sullivan accept Medicare?
- Eugene Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eugene Sullivan's NPI active?
- Yes — Eugene Sullivan's NPI (1083633408) is active in the NPPES registry as of the last update on 2012-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.