Ivan Rivera Nazario, MD
NPI 1124554449 · Endocrinology, Diabetes & Metabolism Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ivan Rivera Nazario, MD is a Endocrinology, Diabetes & Metabolism Physician provider in San Juan, PR (NPI 1124554449).
Provider details
- NPI number
- 1124554449
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 21051 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 57 | 21 |
| Levothyroxine Sodiumbrand: Synthroid | 35 | 13 |
| Dulaglutidebrand: Trulicity | 22 | — |
| Empagliflozin/Metformin Hclbrand: Synjardy Xr | 22 | — |
| Semaglutidebrand: Ozempic | 22 | — |
| Empaglifloz/Linaglip/Metforminbrand: Trijardy Xr | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$917 across 33 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-05
- Last updated
- 2024-08-01
- Certified
- 2023-07-29
Frequently asked questions
- What is Ivan Rivera Nazario's NPI number?
- Ivan Rivera Nazario's National Provider Identifier (NPI) is 1124554449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ivan Rivera Nazario's specialty?
- Ivan Rivera Nazario is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Ivan Rivera Nazario located?
- Ivan Rivera Nazario's practice location on file with NPPES is Hospital Municipal De San Juan Barrio Monacillo, San Juan, PR 00928.
- What is Ivan Rivera Nazario's phone number?
- The practice phone number listed in the NPPES registry for Ivan Rivera Nazario is (787) 480-0000.
- Does Ivan Rivera Nazario accept Medicare?
- Ivan Rivera Nazario is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ivan Rivera Nazario's NPI active?
- Yes — Ivan Rivera Nazario's NPI (1124554449) is active in the NPPES registry as of the last update on 2024-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.