Vivian Hayashi
NPI 1659213494 · Student in an Organized Health Care Education/Training Program · Brea, CA
Vivian Hayashi is a Student in an Organized Health Care Education/Training Program provider in Brea, CA (NPI 1659213494).
Provider details
- NPI number
- 1659213494
- 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
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
- 2026-04-09
- Last updated
- 2026-04-09
- Certified
- 2026-04-09
Frequently asked questions
- What is Vivian Hayashi's NPI number?
- Vivian Hayashi's National Provider Identifier (NPI) is 1659213494, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Hayashi's specialty?
- Vivian Hayashi 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 Vivian Hayashi located?
- Vivian Hayashi's practice location on file with NPPES is 524 Craftsman Cir, Brea, CA 92821-6139.
- What is Vivian Hayashi's phone number?
- The practice phone number listed in the NPPES registry for Vivian Hayashi is (714) 856-0099.
- Is Vivian Hayashi's NPI active?
- Yes — Vivian Hayashi's NPI (1659213494) is active in the NPPES registry as of the last update on 2026-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.