Michael Chang, DO
NPI 1639751381 · Internal Medicine Physician · Los Angeles, CA
Michael Chang, DO is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1639751381).
Provider details
- NPI number
- 1639751381
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A21346 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2021-04-22
- Last updated
- 2024-06-19
- Certified
- 2024-06-19
Frequently asked questions
- What is Michael Chang's NPI number?
- Michael Chang's National Provider Identifier (NPI) is 1639751381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Chang's specialty?
- Michael Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Chang located?
- Michael Chang's practice location on file with NPPES is 4867 W Sunset Blvd, Los Angeles, CA 90027-5969.
- What is Michael Chang's phone number?
- The practice phone number listed in the NPPES registry for Michael Chang is (833) 574-2273.
- Is Michael Chang's NPI active?
- Yes — Michael Chang's NPI (1639751381) is active in the NPPES registry as of the last update on 2024-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.