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Justin Siu
NPI 1285313049 · Behavior Technician · Hayward, CA
Justin Siu is a Behavior Technician provider in Hayward, CA (NPI 1285313049).
Provider details
- NPI number
- 1285313049
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(52/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
22283 Main St
Hayward, CA 94541-4004
Phone: (800) 249-1266
Street-level locationGet directions
Mailing address
1301 E Orangewood Ave
Anaheim, CA 92805-6807
Registry dates
- Enumerated
- 2023-07-17
- Last updated
- 2023-07-17
- Certified
- 2023-07-17
Frequently asked questions
- What is Justin Siu's NPI number?
- Justin Siu's National Provider Identifier (NPI) is 1285313049, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Siu's specialty?
- Justin Siu is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Justin Siu located?
- Justin Siu's practice location on file with NPPES is 22283 Main St, Hayward, CA 94541-4004.
- What is Justin Siu's phone number?
- The practice phone number listed in the NPPES registry for Justin Siu is (800) 249-1266.
- Is Justin Siu's NPI active?
- Yes — Justin Siu's NPI (1285313049) is active in the NPPES registry as of the last update on 2023-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.