Mason Flanagan
NPI 1255271821 · Student in an Organized Health Care Education/Training Program · San Diego, CA
Mason Flanagan is a Student in an Organized Health Care Education/Training Program provider in San Diego, CA (NPI 1255271821).
Provider details
- NPI number
- 1255271821
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Male
- 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
Under 1 yr in 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
- 2026-03-31
- Last updated
- 2026-03-31
- Certified
- 2026-03-31
Frequently asked questions
- What is Mason Flanagan's NPI number?
- Mason Flanagan's National Provider Identifier (NPI) is 1255271821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mason Flanagan's specialty?
- Mason Flanagan 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 Mason Flanagan located?
- Mason Flanagan's practice location on file with NPPES is 4520 Executive Dr, San Diego, CA 92121-3018.
- What is Mason Flanagan's phone number?
- The practice phone number listed in the NPPES registry for Mason Flanagan is (858) 657-8737.
- Is Mason Flanagan's NPI active?
- Yes — Mason Flanagan's NPI (1255271821) is active in the NPPES registry as of the last update on 2026-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.