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Vivian Yiu
NPI 1003309857 · Behavior Technician · San Ramon, CA
Vivian Yiu is a Behavior Technician provider in San Ramon, CA (NPI 1003309857).
Provider details
- NPI number
- 1003309857
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(61/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs 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
1 Crow Canyon Ct Ste 100
San Ramon, CA 94583-1641
Phone: (888) 531-8385
Street-level locationGet directions
Mailing address
11 Majestic Ave
San Francisco, CA 94112-3109
Registry dates
- Enumerated
- 2018-06-07
- Last updated
- 2018-06-07
Frequently asked questions
- What is Vivian Yiu's NPI number?
- Vivian Yiu's National Provider Identifier (NPI) is 1003309857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Yiu's specialty?
- Vivian Yiu is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Vivian Yiu located?
- Vivian Yiu's practice location on file with NPPES is 1 Crow Canyon Ct Ste 100, San Ramon, CA 94583-1641.
- What is Vivian Yiu's phone number?
- The practice phone number listed in the NPPES registry for Vivian Yiu is (888) 531-8385.
- Is Vivian Yiu's NPI active?
- Yes — Vivian Yiu's NPI (1003309857) is active in the NPPES registry as of the last update on 2018-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.