Quick answers
- Where does Matthew Lopez see patients?
- Medicare's clinician data lists 2 practice locations, including Lancaster, CA and Redlands, CA. Call before your visit to confirm the address.
- What is Matthew Lopez's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
- Does Matthew Lopez accept Medicare assignment?
- Medicare's clinician data says Matthew Lopez may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Matthew Lopez's NPI number?
- 1396487450. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Matthew Lopez is enrolled with Medicare (CMS data updated 2026-10-02).
- 43322 Gingham AveLancaster, CA 93535
- 851 Anderson CtRedlands, CA 92374
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1396487450 |
| 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
- 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