Board certified in Gastroenterology and Internal Medicine.

William L. Peterson, MD
Gastroenterology
About This Provider
Education
Medical
- University of North Dakota School of Medicine & Health Sciences, Grand Forks, ND
Residency
- Internal Medicine, University of Nebraska College of Medicine, Omaha, NE
Fellowships
- Gastroenterology , University of Pittsburgh School of Medicine, Pittsburgh, PA
Board Certifications
- Gastroenterology
- Internal Medicine
Professional Memberships
- Sangamon County Medical Society
- Illinois State Medical Society
- American Medical Association