Carlos Negron-Nazario, M.D.
NPI 1245603125 · Internal Medicine Physician · Mayaguez, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlos Negron-Nazario, M.D. is a Internal Medicine Physician provider in Mayaguez, PR (NPI 1245603125).
Provider details
- NPI number
- 1245603125
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 19214 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,147 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
- 2015-11-02
- Last updated
- 2022-06-29
- Certified
- 2022-06-20
Frequently asked questions
- What is Carlos Negron-Nazario's NPI number?
- Carlos Negron-Nazario's National Provider Identifier (NPI) is 1245603125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlos Negron-Nazario's specialty?
- Carlos Negron-Nazario is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carlos Negron-Nazario located?
- Carlos Negron-Nazario's practice location on file with NPPES is Mayaguez Medical Center, Pr-2, Mayaguez, PR 00681.
- What is Carlos Negron-Nazario's phone number?
- The practice phone number listed in the NPPES registry for Carlos Negron-Nazario is (787) 652-9200.
- Does Carlos Negron-Nazario accept Medicare?
- Carlos Negron-Nazario is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carlos Negron-Nazario's NPI active?
- Yes — Carlos Negron-Nazario's NPI (1245603125) is active in the NPPES registry as of the last update on 2022-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.