Elena Siow, R.N.
NPI 1144911629 · Psychiatric/Mental Health Registered Nurse · Pleasanton, CA
Elena Siow, R.N. is a Psychiatric/Mental Health Registered Nurse provider in Pleasanton, CA (NPI 1144911629).
Provider details
- NPI number
- 1144911629
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- R.N.
- Sex
- Female
- Sole proprietor
- No
- License
- 95318270 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
Mailing address
Registry dates
- Enumerated
- 2023-05-16
- Last updated
- 2024-06-23
- Certified
- 2024-06-23
Frequently asked questions
- What is Elena Siow's NPI number?
- Elena Siow's National Provider Identifier (NPI) is 1144911629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elena Siow's specialty?
- Elena Siow is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Elena Siow located?
- Elena Siow's practice location on file with NPPES is 5674 Stoneridge Dr, Pleasanton, CA 94588-8500.
- What is Elena Siow's phone number?
- The practice phone number listed in the NPPES registry for Elena Siow is (925) 520-0005.
- Is Elena Siow's NPI active?
- Yes — Elena Siow's NPI (1144911629) is active in the NPPES registry as of the last update on 2024-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.