Quick answers
- Which hospitals does Andrew C. Ong work at?
- Medicare's official clinician data lists Andrew C. Ong at 4 hospitals: Casa Colina Hospital, Pomona Valley Hospital Medical Center, San Antonio Regional Hospital and St Bernardine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew C. Ong see patients?
- Medicare's clinician data lists 4 practice locations, including Eastvale, CA, Fontana, CA and Rancho Cucamonga, CA. Call before your visit to confirm the address.
- What is Andrew C. Ong's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Andrew C. Ong accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew C. Ong 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 Andrew C. Ong?
- (951) 393-3010, as listed in official Medicare / NPI Registry data.
- What is Andrew C. Ong's NPI number?
- 1780138289. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew C. Ong works
Medicare's Facility Affiliation Data lists Andrew C. Ong 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
- St Bernardine Medical CenterSan Bernardino, CA · Acute Care Hospital · CCN 050129
Practice locations
Addresses where Andrew C. Ong is enrolled with Medicare (CMS data updated 2026-10-02).
- 12442 Limonite AveEastvale, CA 91752 (951) 393‑3010
- 16465 Sierra Lakes PkwyFontana, CA 92336 (909) 434‑1124
- 7777 Milliken AveRancho Cucamonga, CA 91730 (909) 948‑8000
- 999 San Bernardino RdUpland, CA 91786 (909) 985‑2811
Group practices
Medicare enrollment lists Andrew C. Ong as a member of this group (CMS data updated 2026-10-02).
- San Antonio Radiological Medical53 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Eastvale
Clinicians with the same Medicare primary specialty in Eastvale, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780138289 |
| 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