Maria Diaz Fernandez, M.D.
NPI 1437274313 · General Practice Physician · San Juan, PR
Maria Diaz Fernandez, M.D. is a General Practice Physician provider in San Juan, PR (NPI 1437274313).
Provider details
- NPI number
- 1437274313
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6817 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Maria Diaz Fernandez's NPI number?
- Maria Diaz Fernandez's National Provider Identifier (NPI) is 1437274313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Diaz Fernandez's specialty?
- Maria Diaz Fernandez is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Diaz Fernandez located?
- Maria Diaz Fernandez's practice location on file with NPPES is 151 Calle Cesar Gonzalez, San Juan, PR 00918-1463.
- What is Maria Diaz Fernandez's phone number?
- The practice phone number listed in the NPPES registry for Maria Diaz Fernandez is (787) 316-3673.
- Is Maria Diaz Fernandez's NPI active?
- Yes — Maria Diaz Fernandez's NPI (1437274313) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.