Marie R. Balfour, MD

Hospitals where Marie R. Balfour works

Medicare's Facility Affiliation Data lists Marie R. Balfour 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.

• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Marie R. Balfour is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 the City Dr SOrange, CA 92868 (714) 456‑7890

Group practices

Medicare enrollment lists Marie R. Balfour as a member of this group (CMS data updated October 2, 2026).

• The Regents of the University of California-Irvine125 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Orange

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

• Jaclyn Leong, MD
• Deepti Pandita, MD
• Christine Fung, MD
• Michael A. Del Junco, MD
• Andrea D. Avery, MD
• Chibao L. Nguyen, DO
• Kusum M. Ohri, MD
• Rupali K. Nabar, MD

All internal medicine doctors in Orange →

Other clinicians in The Regents of the University of California-Irvine

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

• Deepti Pandita, MD
• Christine Fung, MD
• Ruby J. Chien, MD
• Lina Bissar, MD
• Israel Dealba, MD
• Smita K. Kalra, 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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
5. Medicare Care Compare — official Medicare tool to look up clinicians