Marlen Diaz
NPI 1891689626 · Student in an Organized Health Care Education/Training Program · Oakland, CA
Marlen Diaz is a Student in an Organized Health Care Education/Training Program provider in Oakland, CA (NPI 1891689626).
Provider details
- NPI number
- 1891689626
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-06-05
- Last updated
- 2025-08-05
- Certified
- 2025-08-05
Frequently asked questions
- What is Marlen Diaz's NPI number?
- Marlen Diaz's National Provider Identifier (NPI) is 1891689626, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marlen Diaz's specialty?
- Marlen 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 Marlen Diaz located?
- Marlen Diaz's practice location on file with NPPES is 747 52nd St, Oakland, CA 94609-1809.
- What is Marlen Diaz's phone number?
- The practice phone number listed in the NPPES registry for Marlen Diaz is (510) 428-3885.
- Is Marlen Diaz's NPI active?
- Yes — Marlen Diaz's NPI (1891689626) is active in the NPPES registry as of the last update on 2025-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.