Cathie T. Chung, MD

Medicare activity in 2024

Official CMS public-use data for Cathie T. 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.

Most frequent services

1. Injection, denosumab, 1 mg (J0897)10,020 services
2. Injection, fulvestrant, 25 mg (J9395)1,380 services
3. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)804 services
4. Blood test, comprehensive group of blood chemicals (80053)798 services
5. Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 (86300)718 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 cholesterol75%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High blood pressure64%
• Arthritis49%
• Osteoporosis45%
• Ischemic heart disease30%

Hospitals where Cathie T. Chung works

Medicare's Facility Affiliation Data lists Cathie T. 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.

• Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625
• Saint John's Health CenterSanta Monica, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050290

Practice locations

Addresses where Cathie T. Chung is enrolled with Medicare (CMS data updated October 2, 2026).

• 11818 Wilshire BlvdLos Angeles, CA 90025 (213) 977‑0419
• 2001 Santa Monica Blvd, Suite 560wSanta Monica, CA 90404 (310) 582‑7900
• 2121 Santa Monica BlvdSanta Monica, CA 90404 (310) 576‑7267
• 8635 W 3rd St, Suite 465wLos Angeles, CA 90048 (310) 423‑0674

Group practices

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

• Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

• Medical Oncologyprimary

Find other Medical Oncology doctors in California →

Other oncologists in Los Angeles

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

• Noam Z. Drazin, MD
• Diana L. Hanna, MD
• David D. Tran, MD
• Steven A. Miles, MD
• Anishka A. D'Souza, MD
• David R. Freyer, DO
• Varsha Tulpule, MD
• David B. Agus, MD

All oncologists in Los Angeles →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

• Michelle Lin, MD
• Yu Tung Wong, MD
• Gregory W. Stecker, MD
• Arpine Khudanyan, MD
• Elnaz Omran, MD
• Kristen Roman, CNA

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