Liyun Yuan, MD

Medicare activity in 2024

Official CMS public-use data for Liyun Yuan, 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.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)129 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)129 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)93 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)38 services
5. Biopsy of large bowel using a flexible endoscope (45380)22 services

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).

• High blood pressure75%
• High cholesterol67%
• Diabetes66%
• Chronic kidney disease56%
• Arthritis48%
• Ischemic heart disease43%

Hospitals where Liyun Yuan works

Medicare's Facility Affiliation Data lists Liyun Yuan 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.

• Keck Hospital of USCLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050696

Practice locations

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

• 1441 Eastlake Ave, Suite 2424Los Angeles, CA 90089 (323) 442‑2582
• 1500 San Pablo StLos Angeles, CA 90033
• 1516 San Pablo StLos Angeles, CA 90033 (800) 872‑2273
• 1516 San Pablo St, Suite L3100Los Angeles, CA 90033 (800) 872‑2273
• 1520 San Pablo StLos Angeles, CA 90033 (800) 872‑2273

Group practices

Medicare enrollment lists Liyun Yuan as a member of this group (CMS data updated October 2, 2026).

• USC Care Medical Group Inc1,380 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in California →

Other gastroenterologists in Los Angeles

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

• Mingming Xu, MD
• Mary Farid, DO
• Florence Damilola Odufalu, MD
• Hyosun Han, MD
• Carey B. Strom, MD
• Shahrad Hakimian, MD
• Guy A. Weiss, MD
• Carrie R. Wong, MD

All gastroenterologists in Los Angeles →

Other clinicians in USC Care Medical Group Inc

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

• Patrick D. Lyden, MD
• Nicole J. Velasquez, PA
• Lynda D. Roman, MD
• Parakrama T. Chandrasoma, MD
• Jeannie B. Dang, MD
• Ming-Lu Huang, 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