Nydia Lopez Diaz, M.D.
NPI 1578591772 · General Practice Physician · Toa Alta, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nydia Lopez Diaz, M.D. is a General Practice Physician provider in Toa Alta, PR (NPI 1578591772).
Provider details
- NPI number
- 1578591772
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 11254 (PR)
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 · 173 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Simvastatin | 470 | 119 |
| Lisinopril | 453 | 111 |
| Amlodipine Besylate | 447 | 103 |
| Atorvastatin Calcium | 434 | 127 |
| Losartan Potassium | 428 | 104 |
| Levothyroxine Sodiumbrand: Synthroid | 375 | 74 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2024-08-14
- Certified
- 2024-08-08
Frequently asked questions
- What is Nydia Lopez Diaz's NPI number?
- Nydia Lopez Diaz's National Provider Identifier (NPI) is 1578591772, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nydia Lopez Diaz's specialty?
- Nydia Lopez Diaz is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Nydia Lopez Diaz located?
- Nydia Lopez Diaz's practice location on file with NPPES is Carr. 828 Km. 0.1, Toa Alta, PR 00953-4611.
- What is Nydia Lopez Diaz's phone number?
- The practice phone number listed in the NPPES registry for Nydia Lopez Diaz is (787) 279-3297.
- Does Nydia Lopez Diaz accept Medicare?
- Nydia Lopez Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nydia Lopez Diaz's NPI active?
- Yes — Nydia Lopez Diaz's NPI (1578591772) is active in the NPPES registry as of the last update on 2024-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.