Quick answers
- Where does Sonia Mathew see patients?
- Medicare's clinician data lists 1 practice location in San Ysidro, CA. Call before your visit to confirm the address.
- What is Sonia Mathew's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Sonia Mathew accept Medicare assignment?
- Yes. Medicare's clinician data says Sonia Mathew 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 Sonia Mathew?
- (619) 428-4463, as listed in official Medicare / NPI Registry data.
- What is Sonia Mathew's NPI number?
- 1376284562. 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 Sonia Mathew is enrolled with Medicare (CMS data updated 2026-10-02).
- 4004 Beyer BlvdSan Ysidro, CA 92173 (619) 428‑4463
Group practices
Medicare enrollment lists Sonia Mathew as a member of this group (CMS data updated 2026-10-02).
- Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Ysidro
Clinicians with the same Medicare primary specialty in San Ysidro, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376284562 |
| 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