Brian Chun Fang Cheng, MD

Medicare activity in 2024

Official CMS public-use data for Brian Chun Fang Cheng, 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.

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)54%
• High blood pressure46%

Hospitals where Brian Chun Fang Cheng works

Medicare's Facility Affiliation Data lists Brian Chun Fang Cheng 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.

• PIH Health Downey HospitalDowney, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050393
• PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050169

Practice locations

Addresses where Brian Chun Fang Cheng is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

• 11500 Brookshire AveDowney, CA 90241 (562) 904‑5000
• 12214 Lakewood Blvd, Suite 110Downey, CA 90242 (562) 904‑4430
• 1225 Wilshire BlvdLos Angeles, CA 90017 (213) 977‑2121
• 12401 Washington BlvdWhittier, CA 90602 (562) 698‑0811
• 12401 Washington Blvd, Suite 100Whittier, CA 90602 (562) 967‑2885

Group practices

Medicare enrollment lists Brian Chun Fang Cheng as a member of this group (CMS data updated October 2, 2026).

• PIH Health Physicians622 clinicians in the group

Specialties

• Geriatric Medicineprimary
• Internal Medicinealso

Find other Geriatric Medicine doctors in California →

Other geriatricians in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• William W. Braun, MD
• Josefina J. Kenyon, MD
• Praveena Jeereddi, MD
• Albert Lam, MD
• Eddie P. Lam, MD
• Amy J. Delellis, MD
• Sara E. Espinoza, MD
• Mba Uzoma U. Mba, MD

All geriatricians in California →

Other clinicians in PIH Health Physicians

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

• Raymond Cezar, PA
• Marissa J. Nelson, NP
• Andrew Hsiao, MD
• Henry N. Cobau, MD
• Cariza G. Mercurio, MD
• Amber C. Brown, NP

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