Gregory R. Vlacich

Gregory R. Vlacich, MD, PhD

Top Doctors®

Specializes In
  • Radiation Oncology
  • Cancer (Oncology)
Languages Spoken
  • English


Sees Patients For

Lung cancer, esophageal cancer, prostate cancer, head and neck cancer, gastrointestinal cancer, stereotactic body radiation therapy.

Hospital Affiliations

  • Barnes-Jewish Hospital
  • Barnes-Jewish St. Peters Hospital
  • Barnes-Jewish West County Hospital
  • Christian Hospital



Board Certifications

  • Radiation Oncology

Academic Title(s)

Associate Professor, Radiation Oncology
Clinical Director, Satellite Operations
Medical Director of Radiation Oncology, Alton Memorial Hospital

Research Interests

Treatment-related toxicity and outcomes in head and neck and gastrointestinal cancer.

Publications & Research

View research profile »


Residency, Radiation Oncology

2014 Vanderbilt University Medical Center, Nashville, TN

PhD, Molecular Biophysics and Cell Biology

2007 University of Chicago, Pritzker School of Medicine, Chicago, IL

Medical Degree

2009 University of Chicago, Pritzker School of Medicine, Chicago, IL

BS, Molecular Biophysics and Biochemistry

1999 Yale University, New Haven, CT