Chang Chhen
NPI 1255943122 · Certified Respiratory Therapist · Santa Clara, CA
Chang Chhen is a Certified Respiratory Therapist provider in Santa Clara, CA (NPI 1255943122).
Provider details
- NPI number
- 1255943122
- Entity type
- Individual
- Primary specialty
- Certified Respiratory TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Female
- Sole proprietor
- Yes
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
5 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
- 2020-08-20
- Last updated
- 2020-08-20
- Certified
- 2020-08-20
Frequently asked questions
- What is Chang Chhen's NPI number?
- Chang Chhen's National Provider Identifier (NPI) is 1255943122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chang Chhen's specialty?
- Chang Chhen is listed in the NPPES registry with a primary specialty of Certified Respiratory Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Chang Chhen located?
- Chang Chhen's practice location on file with NPPES is 710 Lawrence Expy Dept 282, Santa Clara, CA 95051-5173.
- What is Chang Chhen's phone number?
- The practice phone number listed in the NPPES registry for Chang Chhen is (408) 851-9261.
- Is Chang Chhen's NPI active?
- Yes — Chang Chhen's NPI (1255943122) is active in the NPPES registry as of the last update on 2020-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.