Cheng-Chi Chang
NPI 1225215874 · Clinical Social Worker · San Francisco, CA
Cheng-Chi Chang is a Clinical Social Worker provider in San Francisco, CA (NPI 1225215874).
Provider details
- NPI number
- 1225215874
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Mailing address
Registry dates
- Enumerated
- 2008-01-25
- Last updated
- 2008-01-25
Frequently asked questions
- What is Cheng-Chi Chang's NPI number?
- Cheng-Chi Chang's National Provider Identifier (NPI) is 1225215874, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cheng-Chi Chang's specialty?
- Cheng-Chi Chang is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Cheng-Chi Chang located?
- Cheng-Chi Chang's practice location on file with NPPES is 982 Mission St, San Francisco, CA 94103-2911.
- What is Cheng-Chi Chang's phone number?
- The practice phone number listed in the NPPES registry for Cheng-Chi Chang is (415) 597-8048.
- Is Cheng-Chi Chang's NPI active?
- Yes — Cheng-Chi Chang's NPI (1225215874) is active in the NPPES registry as of the last update on 2008-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.