Marvin Chang, M.D.
NPI 1891138483 · Internal Medicine Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marvin Chang, M.D. is a Internal Medicine Physician provider in Torrance, CA (NPI 1891138483).
Provider details
- NPI number
- 1891138483
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A135580 (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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 5901 E 7th StLong Beach, CA 90822-5201Phone: (562) 826-8000
Registry dates
- Enumerated
- 2013-04-12
- Last updated
- 2026-04-30
- Certified
- 2026-04-30
Frequently asked questions
- What is Marvin Chang's NPI number?
- Marvin Chang's National Provider Identifier (NPI) is 1891138483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marvin Chang's specialty?
- Marvin Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marvin Chang located?
- Marvin Chang's practice location on file with NPPES is 3330 Lomita Blvd, Torrance, CA 90505-5002.
- What is Marvin Chang's phone number?
- The practice phone number listed in the NPPES registry for Marvin Chang is (310) 214-0811.
- Does Marvin Chang accept Medicare?
- Marvin Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marvin Chang's NPI active?
- Yes — Marvin Chang's NPI (1891138483) is active in the NPPES registry as of the last update on 2026-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.