Joshua S. Chung, MD

Medicare activity in 2024

Official CMS public-use data for Joshua S. 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. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)51 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)35 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)27 services
4. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)17 services
5. Harvest of vein using an endoscope (33508)14 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 cholesterol75%
• Heart failure72%
• Ischemic heart disease69%
• Atrial fibrillation63%
• Diabetes54%

Hospitals where Joshua S. Chung works

Medicare's Facility Affiliation Data lists Joshua S. 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.

• Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050327

Practice locations

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

• 11234 Anderson StLoma Linda, CA 92354
• 11370 Anderson StLoma Linda, CA 92354
• 25845 Barton Rd, Suite FLoma Linda, CA 92354 (909) 558‑2828
• 901 San Bernardino Rd, Suite 104and302Upland, CA 91786 (909) 558‑4000
• File Number, Suite 54701Los Angeles, CA 90074

Group practices

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

• Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group

Specialties

• Thoracic Surgeryprimary

Find other Thoracic Surgery doctors in California →

Other thoracic surgeons in Loma Linda

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

• Reza Salabat, MD
• Anees J. Razzouk, MD
• Randall Fortuna, MD
• Alexander Leung, MD
• Victoria Lam, MD

All thoracic surgeons in Loma Linda →

Other clinicians in Faculty Physicians and Surgeons of Llusm

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

• William Guthrie, MD
• Giovanni Birrueta, NP
• Kevin C. Loyola, MD
• Yuki Miura, MD
• Jessica M. Chan, DO
• Shannon O. Calaguas, 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