Reynaldo Alonso, MD
NPI 1295735553 · Internal Medicine Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Reynaldo Alonso, MD is a Internal Medicine Physician provider in Bronx, NY (NPI 1295735553).
Provider details
- NPI number
- 1295735553
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 191962-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 328 | 116 |
| Amlodipine Besylate | 160 | 55 |
| Lisinopril | 150 | 55 |
| Metformin Hcl | 128 | 38 |
| Rosuvastatin Calcium | 121 | 44 |
| Losartan Potassium | 114 | 39 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-28
- Last updated
- 2021-10-28
- Certified
- 2021-10-28
Frequently asked questions
- What is Reynaldo Alonso's NPI number?
- Reynaldo Alonso's National Provider Identifier (NPI) is 1295735553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Reynaldo Alonso's specialty?
- Reynaldo Alonso is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Reynaldo Alonso located?
- Reynaldo Alonso's practice location on file with NPPES is 2426 Eastchester Rd, Bronx, NY 10469-5947.
- What is Reynaldo Alonso's phone number?
- The practice phone number listed in the NPPES registry for Reynaldo Alonso is (718) 231-7872.
- Does Reynaldo Alonso accept Medicare?
- Reynaldo Alonso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Reynaldo Alonso's NPI active?
- Yes — Reynaldo Alonso's NPI (1295735553) is active in the NPPES registry as of the last update on 2021-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.