IndividualActive
Joyce Chang
NPI 1588238851 · Behavior Analyst · San Ramon, CA
Joyce Chang is a Behavior Analyst provider in San Ramon, CA (NPI 1588238851).
Provider details
- NPI number
- 1588238851
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 1-18-31982
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(62/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
110 Ryan Industrial Ct # 34
San Ramon, CA 94583-1592
Phone: (833) 758-7222
Street-level locationGet directions
Mailing address
11040 Bollinger Canyon Rd Ste E155
San Ramon, CA 94582-4969
Registry dates
- Enumerated
- 2021-05-19
- Last updated
- 2022-10-18
- Certified
- 2022-10-18
Frequently asked questions
- What is Joyce Chang's NPI number?
- Joyce Chang's National Provider Identifier (NPI) is 1588238851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joyce Chang's specialty?
- Joyce Chang is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Joyce Chang located?
- Joyce Chang's practice location on file with NPPES is 110 Ryan Industrial Ct # 34, San Ramon, CA 94583-1592.
- What is Joyce Chang's phone number?
- The practice phone number listed in the NPPES registry for Joyce Chang is (833) 758-7222.
- Is Joyce Chang's NPI active?
- Yes — Joyce Chang's NPI (1588238851) is active in the NPPES registry as of the last update on 2022-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.