Hammad Rizvi, D.O.
NPI 1659516227 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hammad Rizvi, D.O. is a Internal Medicine Physician provider in New York, NY (NPI 1659516227).
Provider details
- NPI number
- 1659516227
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 257683 (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
17 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
48 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 48 | $83 |
Typical Medicare-allowed amounts for these services range $83–$83 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 158 | 21 |
| Amlodipine Besylate | 97 | 14 |
| Tamsulosin Hcl | 89 | 11 |
| Metformin Hcl | 72 | — |
| Lisinopril | 71 | 12 |
| Famotidine | 63 | — |
| Divalproex Sodium | 60 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-12-10
- Last updated
- 2010-08-05
Frequently asked questions
- What is Hammad Rizvi's NPI number?
- Hammad Rizvi's National Provider Identifier (NPI) is 1659516227, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hammad Rizvi's specialty?
- Hammad Rizvi is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hammad Rizvi located?
- Hammad Rizvi's practice location on file with NPPES is 1000 10th Ave, New York, NY 10019-1147.
- What is Hammad Rizvi's phone number?
- The practice phone number listed in the NPPES registry for Hammad Rizvi is (212) 523-4000.
- Does Hammad Rizvi accept Medicare?
- Hammad Rizvi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hammad Rizvi's NPI active?
- Yes — Hammad Rizvi's NPI (1659516227) is active in the NPPES registry as of the last update on 2010-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.