Quick answers
- Where does Sean S. McCarthy see patients?
- Medicare's clinician data lists 1 practice location in San Dimas, CA. Call before your visit to confirm the address.
- What is Sean S. McCarthy's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Sean S. McCarthy accept Medicare assignment?
- Yes. Medicare's clinician data says Sean S. McCarthy 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 Sean S. McCarthy?
- (909) 394-2526, as listed in official Medicare / NPI Registry data.
- What is Sean S. McCarthy's NPI number?
- 1932276938. 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 Sean S. McCarthy is enrolled with Medicare (CMS data updated 2026-10-02).
- 1255 W Arrow HwySan Dimas, CA 91773 (909) 394‑2526
Group practices
Medicare enrollment lists Sean S. McCarthy as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in San Dimas
Clinicians with the same Medicare primary specialty in San Dimas, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932276938 |
| 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