James I. McMillan, MD

Practice locations

Addresses where James I. McMillan is enrolled with Medicare (CMS data updated October 2, 2026).

• 1454 E 2nd StSan Bernardino, CA 92408 (909) 382‑7100
• 250 S G StSan Bernardino, CA 92410 (909) 382‑7100

Group practices

Medicare enrollment lists James I. McMillan as a member of this group (CMS data updated October 2, 2026).

• Sac Health System227 clinicians in the group

Specialties

• Internal Medicineprimary
• Nephrologyalso

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Bernardino

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

• George Mousa, MD
• Tu Hoang, MD
• Jared Dang, DO
• Noor T. Asmail, MD
• Kwame B. Agyeman, MD
• Peter W. Demuth, MD
• Koushik Kasanagottu, MD
• Hateem Siddiqui, MD

All internal medicine doctors in San Bernardino →

Other clinicians in Sac Health System

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

• Steven M. Fish, MD
• James K. Amsberry, MD
• Maria B. Lohr, MD
• Daniel P. Lopez, MD
• Jeffrey Cho, MD
• James Crounse, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
3. Medicare Care Compare — official Medicare tool to look up clinicians