William Titley Diaz, MD
NPI 1841747144 · Student in an Organized Health Care Education/Training Program · Carolina, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Titley Diaz, MD is a Student in an Organized Health Care Education/Training Program provider in Carolina, PR (NPI 1841747144).
Provider details
- NPI number
- 1841747144
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 14929I (PR)
Specialties & taxonomies
Student, Health Care
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-09-02
- Last updated
- 2025-06-10
- Certified
- 2025-06-10
Frequently asked questions
- What is William Titley Diaz's NPI number?
- William Titley Diaz's National Provider Identifier (NPI) is 1841747144, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Titley Diaz's specialty?
- William Titley Diaz is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is William Titley Diaz located?
- William Titley Diaz's practice location on file with NPPES is Hospital Upr Federico Trilla Ave 65 Infanteria, Carolina, PR 00984.
- What is William Titley Diaz's phone number?
- The practice phone number listed in the NPPES registry for William Titley Diaz is (787) 769-4520.
- Does William Titley Diaz accept Medicare?
- William Titley Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Titley Diaz's NPI active?
- Yes — William Titley Diaz's NPI (1841747144) is active in the NPPES registry as of the last update on 2025-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.