Viet S. Nguyen, MD

Hospitals where Viet S. Nguyen works

Medicare's Facility Affiliation Data lists Viet S. Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Palo Verde HospitalBlythe, CA · Critical Access Hospital · Emergency services: not listed by Medicare · CCN 051339
• Pomona Valley Hospital Medical CenterPomona, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050231
• Riverside Community HospitalRiverside, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050022

Practice locations

Addresses where Viet S. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

• 1798 N Garey AvePomona, CA 91767 (909) 865‑9500
• 4445 Magnolia AveRiverside, CA 92501 (951) 788‑3000

Group practices

Medicare enrollment lists Viet S. Nguyen as a member of this group (CMS data updated October 2, 2026).

• Cep America - California1,292 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Pomona

Clinicians with the same Medicare primary specialty in Pomona, CA — not a recommendation.

• Jordan M. Jeong, DO
• Eric T. Sechrist, DO
• Stephanie A. Loe, MD
• Christopher Y. Ma, DO
• Christopher A. Pann, DO
• Kevin Goldman, MD
• Alan M. Wong, DO
• Jessica Truong, MD

All emergency medicine doctors in Pomona →

Other clinicians in Cep America - California

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Paul M. Johnson, MD
• Cristopher R. Reed, PA
• Melissa E. Kemp, DO
• Sergio A. Hernandez, MD
• Aaron C. Gladman, MD
• Amanda M. Montgomery, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians