Rifat Mamun, MD
NPI 1235556309 · Gastroenterology Physician · Manhasset, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rifat Mamun, MD is a Gastroenterology Physician provider in Manhasset, NY (NPI 1235556309).
Provider details
- NPI number
- 1235556309
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 288438-01 (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
12 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
455 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 241 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 53 | $149 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $105 |
| Diagnostic Exam of Small Bowel (excluding Lower Small Intestine) Using an Endoscope44360 | 24 | $145 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 19 | $206 |
| 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 106 | 27 |
| Pantoprazole Sodium | 37 | 14 |
| Famotidine | 24 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 17 | 14 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 14 | 14 |
| Linaclotidebrand: Linzess | 13 | — |
| Lipase/Protease/Amylasebrand: Creon |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$221 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
- 2014-03-26
- Last updated
- 2026-01-29
- Certified
- 2026-01-29
Frequently asked questions
- What is Rifat Mamun's NPI number?
- Rifat Mamun's National Provider Identifier (NPI) is 1235556309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rifat Mamun's specialty?
- Rifat Mamun is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Rifat Mamun located?
- Rifat Mamun's practice location on file with NPPES is 300 Community Dr, Manhasset, NY 11030-3816.
- What is Rifat Mamun's phone number?
- The practice phone number listed in the NPPES registry for Rifat Mamun is (516) 387-3990.
- Does Rifat Mamun accept Medicare?
- Rifat Mamun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rifat Mamun's NPI active?
- Yes — Rifat Mamun's NPI (1235556309) is active in the NPPES registry as of the last update on 2026-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.