Robert Pfeffer, MD
NPI 1558360172 · Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Pfeffer, MD is a Gastroenterology Physician provider in New York, NY (NPI 1558360172).
Provider details
- NPI number
- 1558360172
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 162667 (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
20 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
1,227 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 659 | $143 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 144 | $187 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 104 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 70 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 67 | $102 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 218 | 94 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 140 | 138 |
| Famotidine | 136 | 55 |
| Pantoprazole Sodium | 63 | 28 |
| Mesalamine | 25 | — |
| Esomeprazole Magnesium | 22 | — |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 18 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Pfeffer's NPI number?
- Robert Pfeffer's National Provider Identifier (NPI) is 1558360172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Pfeffer's specialty?
- Robert Pfeffer is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Pfeffer located?
- Robert Pfeffer's practice location on file with NPPES is 317 E 34th St, New York, NY 10016-4974.
- What is Robert Pfeffer's phone number?
- The practice phone number listed in the NPPES registry for Robert Pfeffer is (212) 726-7400.
- Does Robert Pfeffer accept Medicare?
- Robert Pfeffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Pfeffer's NPI active?
- Yes — Robert Pfeffer's NPI (1558360172) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.