Quick answers
- Which hospitals does Jennifer C. Sun work at?
- Medicare's official clinician data lists Jennifer C. Sun at 3 hospitals: Casa Colina Hospital, Pomona Valley Hospital Medical Center and San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jennifer C. Sun see patients?
- Medicare's clinician data lists 2 practice locations, including Claremont, CA. Call before your visit to confirm the address.
- What is Jennifer C. Sun's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jennifer C. Sun accept Medicare assignment?
- Medicare's clinician data says Jennifer C. Sun may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Jennifer C. Sun's NPI number?
- 1558352583. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jennifer C. Sun works
Medicare's Facility Affiliation Data lists Jennifer C. Sun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Casa Colina HospitalPomona, CA · Acute Care Hospital · CCN 050782
- Pomona Valley Hospital Medical CenterPomona, CA · Acute Care Hospital · CCN 050231
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · CCN 050099
Practice locations
Addresses where Jennifer C. Sun is enrolled with Medicare (CMS data updated 2026-10-02).
- 689 W Foothill Blvd, Suite BClaremont, CA 91711
- 689 W Foothill Blvd BClaremont, CA 91711
Specialties
- Family Practiceprimary
Other family doctors in Claremont
Clinicians with the same Medicare primary specialty in Claremont, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1558352583 |
| 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