Edwina M. Chang, MD

Medicare activity in 2024

Official CMS public-use data for Edwina M. Chang, 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. X-ray of chest, 1 view (71045)331 services
2. Screening mammography (77067)279 services
3. Screening 3d breast mammography (77063)261 services
4. Ct scan of abdomen and pelvis with contrast (74177)236 services
5. X-ray of chest, 2 views (71046)174 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%
• High blood pressure74%
• Arthritis54%
• Ischemic heart disease32%
• Diabetes28%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)27%

Hospitals where Edwina M. Chang works

Medicare's Facility Affiliation Data lists Edwina M. Chang 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.

• Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
• Hoag Orthopedic InstituteIrvine, CA · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 050769
• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Edwina M. Chang is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Hoag DrNewport Beach, CA 92663 (949) 645‑3534
• 360 San Miguel Dr, Suite 105and106Newport Beach, CA 92660 (949) 365‑3534

Group practices

Medicare enrollment lists Edwina M. Chang as a member of these groups (CMS data updated October 2, 2026).

• Newport Harbor Radiology Associates Medical Group Inc70 clinicians in the group
• Newport Center Radiology Associates Medical Group Inc59 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in Newport Beach

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

• Gary A. Ulaner, MD
• Abhishek K. Jairam, MD
• Katherine Cecil, MD
• Michael N. Brant-Zawadzki, MD
• Brian L. Dubin, MD
• Nader Morcos, MD
• Yingding Xu, MD
• Peter Wang, MD

All radiologists in Newport Beach →

Other clinicians in Newport Harbor Radiology Associates Medical Group Inc

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

• Abhishek K. Jairam, MD
• Nathan T. Nguyen, PA
• Behroz Oftadeh, PA
• Jinsoo A. Keyoung, MD
• Zaihleen S. Keller, MD
• Mark Z. Chen, 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