Gregorio Cortes-Maisonet, MD
NPI 1639151616 · General Practice Physician · San Juan, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregorio Cortes-Maisonet, MD is a General Practice Physician provider in San Juan, PR (NPI 1639151616).
Provider details
- NPI number
- 1639151616
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 16033 (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
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 83 | 26 |
| Losartan Potassium | 71 | 14 |
| Metformin Hcl | 68 | 19 |
| Levothyroxine Sodium | 50 | 13 |
| Amlodipine Besylate | 49 | 11 |
| Levothyroxine Sodiumbrand: Synthroid | 44 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,039 across 11 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
Additional practice locations (1)
- 62 Calle Jose MartiSan Juan, PR 00917-3104Phone: (787) 936-2100Fax: (787) 919-0640
Registry dates
- Enumerated
- 2005-11-16
- Last updated
- 2024-07-10
- Certified
- 2024-07-10
Frequently asked questions
- What is Gregorio Cortes-Maisonet's NPI number?
- Gregorio Cortes-Maisonet's National Provider Identifier (NPI) is 1639151616, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregorio Cortes-Maisonet's specialty?
- Gregorio Cortes-Maisonet is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Gregorio Cortes-Maisonet located?
- Gregorio Cortes-Maisonet's practice location on file with NPPES is 1826 Ave Fernandez Juncos, San Juan, PR 00909-3004.
- What is Gregorio Cortes-Maisonet's phone number?
- The practice phone number listed in the NPPES registry for Gregorio Cortes-Maisonet is (787) 726-8396.
- Does Gregorio Cortes-Maisonet accept Medicare?
- Gregorio Cortes-Maisonet is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregorio Cortes-Maisonet's NPI active?
- Yes — Gregorio Cortes-Maisonet's NPI (1639151616) is active in the NPPES registry as of the last update on 2024-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.