Ross H. McMillan, MD

Hospitals where Ross H. McMillan works

Medicare's Facility Affiliation Data lists Ross H. McMillan 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.

• The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140088
• UChicago Medicine Northwest IndianaCrown Point, IN · Acute Care Hospital · Emergency services: listed by Medicare · CCN 150195

Practice locations

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

• 10855 Virginia StCrown Point, IN 46307 (888) 824‑0200
• 5841 S Maryland AveChicago, IL 60637 (773) 702‑1000

Group practices

Medicare enrollment lists Ross H. McMillan as a member of these groups (CMS data updated October 2, 2026).

• University of Chicago1,712 clinicians in the group
• The University of Chicago Medical Center915 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Indiana →

Other gastroenterologists in Crown Point

Clinicians with the same Medicare primary specialty in Crown Point, IN — not a recommendation.

• Kumar Venkatachalam, MD
• Janaki M. Shah, MD
• Rida Aslam, DO
• Alaa R. Atieh, DO
• Eric Steinberg, MD
• Steven L. Flamm, MD
• Muhammad M. Kudaimi, MD
• Helen S. Te, MD

All gastroenterologists in Crown Point →

Other clinicians in University of Chicago

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

• Catherine Gruenwald, CNA
• Julie Chor, MD
• Lakshmi Warrior, MD
• Ervin Kocjancic, MD
• Anna C. Fuller
• Mark J. Ratain, 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