IndividualActive
Sierra Ong
NPI 1598308462 · Behavior Technician · Concord, CA
Sierra Ong is a Behavior Technician provider in Concord, CA (NPI 1598308462).
Provider details
- NPI number
- 1598308462
- 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(59/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
1855 2nd St Ste B
Concord, CA 94519-2623
Phone: (925) 239-9640
Street-level locationGet directions
Mailing address
16782 Von Karman Ave Ste 11
Irvine, CA 92606-2417
Registry dates
- Enumerated
- 2019-10-23
- Last updated
- 2019-10-23
Frequently asked questions
- What is Sierra Ong's NPI number?
- Sierra Ong's National Provider Identifier (NPI) is 1598308462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Ong's specialty?
- Sierra Ong is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Sierra Ong located?
- Sierra Ong's practice location on file with NPPES is 1855 2nd St Ste B, Concord, CA 94519-2623.
- What is Sierra Ong's phone number?
- The practice phone number listed in the NPPES registry for Sierra Ong is (925) 239-9640.
- Is Sierra Ong's NPI active?
- Yes — Sierra Ong's NPI (1598308462) is active in the NPPES registry as of the last update on 2019-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.