Anna Siu, OTR/L
NPI 1811400138 · Occupational Therapist · Sunnyvale, CA
Anna Siu, OTR/L is a Occupational Therapist provider in Sunnyvale, CA (NPI 1811400138).
Provider details
- NPI number
- 1811400138
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR/L
- Sex
- Female
- Sole proprietor
- Yes
- License
- 17714 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
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
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
- 2017-11-08
- Last updated
- 2017-11-08
Frequently asked questions
- What is Anna Siu's NPI number?
- Anna Siu's National Provider Identifier (NPI) is 1811400138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Siu's specialty?
- Anna Siu is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Anna Siu located?
- Anna Siu's practice location on file with NPPES is 582 S Sunnyvale Ave, Sunnyvale, CA 94086-6125.
- What is Anna Siu's phone number?
- The practice phone number listed in the NPPES registry for Anna Siu is (408) 523-3060.
- Is Anna Siu's NPI active?
- Yes — Anna Siu's NPI (1811400138) is active in the NPPES registry as of the last update on 2017-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.