IndividualActive
Bernard Siao
NPI 1023574050 · Licensed Vocational Nurse · Fairfield, CA
Bernard Siao is a Licensed Vocational Nurse provider in Fairfield, CA (NPI 1023574050).
Provider details
- NPI number
- 1023574050
- Entity type
- Individual
- Primary specialty
- Licensed Vocational NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 286461 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
2101 Courage Dr
Fairfield, CA 94533-6717
Phone: (707) 428-1131
Street-level locationGet directions
Mailing address
2101 Courage Dr
Fairfield, CA 94533-6717
Registry dates
- Enumerated
- 2019-02-14
- Last updated
- 2019-02-14
Frequently asked questions
- What is Bernard Siao's NPI number?
- Bernard Siao's National Provider Identifier (NPI) is 1023574050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bernard Siao's specialty?
- Bernard Siao is listed in the NPPES registry with a primary specialty of Licensed Vocational Nurse (Nursing Service Providers).
- Where is Bernard Siao located?
- Bernard Siao's practice location on file with NPPES is 2101 Courage Dr, Fairfield, CA 94533-6717.
- What is Bernard Siao's phone number?
- The practice phone number listed in the NPPES registry for Bernard Siao is (707) 428-1131.
- Is Bernard Siao's NPI active?
- Yes — Bernard Siao's NPI (1023574050) is active in the NPPES registry as of the last update on 2019-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.