Efrain Ortiz Diaz, M.D.
NPI 1194751040 · General Practice Physician · Toa Baja, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Efrain Ortiz Diaz, M.D. is a General Practice Physician provider in Toa Baja, PR (NPI 1194751040).
Provider details
- NPI number
- 1194751040
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 14513 (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 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 313 | 104 |
| Levothyroxine Sodiumbrand: Synthroid | 231 | 61 |
| Losartan Potassium | 206 | 59 |
| Gabapentin | 195 | 54 |
| Famotidine | 147 | 48 |
| Simvastatin | 141 | 52 |
| Lisinopril | 140 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-23
- Last updated
- 2025-03-22
- Certified
- 2025-03-22
Frequently asked questions
- What is Efrain Ortiz Diaz's NPI number?
- Efrain Ortiz Diaz's National Provider Identifier (NPI) is 1194751040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Efrain Ortiz Diaz's specialty?
- Efrain Ortiz Diaz is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Efrain Ortiz Diaz located?
- Efrain Ortiz Diaz's practice location on file with NPPES is Camino Del Mar Via Caracol St. #2020, Toa Baja, PR 00949.
- What is Efrain Ortiz Diaz's phone number?
- The practice phone number listed in the NPPES registry for Efrain Ortiz Diaz is (787) 637-4416.
- Does Efrain Ortiz Diaz accept Medicare?
- Efrain Ortiz Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Efrain Ortiz Diaz's NPI active?
- Yes — Efrain Ortiz Diaz's NPI (1194751040) is active in the NPPES registry as of the last update on 2025-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.