Wen-Hsiang Chung, MD

Medicare activity in 2024

Official CMS public-use data for Wen-Hsiang Chung, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Hospitals where Wen-Hsiang Chung works

Medicare's Facility Affiliation Data lists Wen-Hsiang Chung 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.

• Kaiser Foundation Hospital - DowneyDowney, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050139

Practice locations

Addresses where Wen-Hsiang Chung is enrolled with Medicare (CMS data updated October 2, 2026).

• 9333 Rosecrans AveBellflower, CA 90706 (562) 461‑3000
• 9449 Imperial HwyDowney, CA 90242 (562) 461‑3000

Group practices

Medicare enrollment lists Wen-Hsiang Chung as a member of this group (CMS data updated October 2, 2026).

• Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

• Internal Medicineprimary
• Pediatric Medicinealso

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Bellflower

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

• Elaheh Mossayebi, MD
• Ravi A. Patel, MD
• Rowena G. Javier, MD
• Tomoko Okahara, MD
• Rafaelito S. Victoria, MD
• Mary Catherine M. Valdez-Guzman, MD
• Arsineh Khachekian, DO
• Roger Sur, MD

All internal medicine doctors in Bellflower →

Other clinicians in Southern California Permanente Medical Group

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

• Giorgi Khardziani, MD
• Yang Li, DO
• Thanh M. Huynh, MD
• Michelle Trieu
• Raymond R. Lin, MD
• Patrick La Vallo, 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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians