Efrain Nazario-Yordan, MD
NPI 1275793309 · Internal Medicine Physician · Mayaguez, PR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Efrain Nazario-Yordan, MD is a Internal Medicine Physician provider in Mayaguez, PR (NPI 1275793309).
Provider details
- NPI number
- 1275793309
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 16820 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Hospitals
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
62 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $89 |
Typical Medicare-allowed amounts for these services range $89–$89 (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 · 213 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,483 | 480 |
| Losartan Potassium | 1,167 | 378 |
| Methylprednisolone | 979 | 576 |
| Gabapentin | 811 | 259 |
| Metformin Hcl | 803 | 242 |
| Levothyroxine Sodium | 780 | 238 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-12
- Last updated
- 2014-07-10
Frequently asked questions
- What is Efrain Nazario-Yordan's NPI number?
- Efrain Nazario-Yordan's National Provider Identifier (NPI) is 1275793309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Efrain Nazario-Yordan's specialty?
- Efrain Nazario-Yordan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Efrain Nazario-Yordan located?
- Efrain Nazario-Yordan's practice location on file with NPPES is Carr 2 Ave Eugenio Maria De Hostos, Mayaguez, PR 00680.
- What is Efrain Nazario-Yordan's phone number?
- The practice phone number listed in the NPPES registry for Efrain Nazario-Yordan is (787) 832-1710.
- Does Efrain Nazario-Yordan accept Medicare?
- Efrain Nazario-Yordan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Efrain Nazario-Yordan's NPI active?
- Yes — Efrain Nazario-Yordan's NPI (1275793309) is active in the NPPES registry as of the last update on 2014-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.