Carlos Nieves Martinez, M.D.
NPI 1407941792 · General Practice Physician · Arecibo, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlos Nieves Martinez, M.D. is a General Practice Physician provider in Arecibo, PR (NPI 1407941792).
Provider details
- NPI number
- 1407941792
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 8882 (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
19 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 · 121 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodiumbrand: Synthroid | 480 | 78 |
| Atorvastatin Calcium | 365 | 119 |
| Gabapentin | 337 | 83 |
| Metformin Hcl | 283 | 76 |
| Simvastatin | 266 | 66 |
| Losartan Potassium | 260 | 67 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$364 across 6 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
- 2006-10-04
- Last updated
- 2011-08-18
Frequently asked questions
- What is Carlos Nieves Martinez's NPI number?
- Carlos Nieves Martinez's National Provider Identifier (NPI) is 1407941792, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlos Nieves Martinez's specialty?
- Carlos Nieves Martinez is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Carlos Nieves Martinez located?
- Carlos Nieves Martinez's practice location on file with NPPES is Carretera#2 Km 63.1, Arecibo, PR 00612.
- What is Carlos Nieves Martinez's phone number?
- The practice phone number listed in the NPPES registry for Carlos Nieves Martinez is (787) 881-4228.
- Does Carlos Nieves Martinez accept Medicare?
- Carlos Nieves Martinez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carlos Nieves Martinez's NPI active?
- Yes — Carlos Nieves Martinez's NPI (1407941792) is active in the NPPES registry as of the last update on 2011-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.