Quick answers
- Which hospitals does Marvin J. Chang work at?
- Medicare's official clinician data lists Marvin J. Chang at 2 hospitals: Providence Little Co of Mary Medical Center San Pedro and Torrance Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marvin J. Chang see patients?
- Medicare's clinician data lists 1 practice location in Torrance, CA. Call before your visit to confirm the address.
- What is Marvin J. Chang's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Marvin J. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Marvin J. Chang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Marvin J. Chang?
- (310) 214-0811, as listed in official Medicare / NPI Registry data.
- What is Marvin J. Chang's NPI number?
- 1891138483. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marvin J. Chang works
Medicare's Facility Affiliation Data lists Marvin J. Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Little Co of Mary Medical Center San PedroSan Pedro, CA · Acute Care Hospital · CCN 050078
- Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospital · CCN 050351
Practice locations
Addresses where Marvin J. Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 3565 Del Amo BlvdTorrance, CA 90503 (310) 214‑0811
Group practices
Medicare enrollment lists Marvin J. Chang as a member of this group (CMS data updated 2026-10-02).
- Healthcare Partners Affiliates Medical Group754 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Torrance
Clinicians with the same Medicare primary specialty in Torrance, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891138483 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians