Robert Chang, MD
NPI 1902885833 · Pulmonary Disease Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Chang, MD is a Pulmonary Disease Physician provider in Torrance, CA (NPI 1902885833).
Provider details
- NPI number
- 1902885833
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 52937 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2006-01-10
- Last updated
- 2013-05-10
Frequently asked questions
- What is Robert Chang's NPI number?
- Robert Chang's National Provider Identifier (NPI) is 1902885833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Chang's specialty?
- Robert Chang is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Chang located?
- Robert Chang's practice location on file with NPPES is 3701 Skypark Dr, Torrance, CA 90505-4749.
- What is Robert Chang's phone number?
- The practice phone number listed in the NPPES registry for Robert Chang is (310) 378-8900.
- Does Robert Chang accept Medicare?
- Robert Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Chang's NPI active?
- Yes — Robert Chang's NPI (1902885833) is active in the NPPES registry as of the last update on 2013-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.