St Louis

Dr. Leonard B Weinstock MD - compassionate, individualized care to adult patients with gastrointestinal illnesses, emphasizing colon cancer screening, therapeutic videoendoscopy, motility disorders, management for irritable bowel syndrome, and comprehensive management of inflammatory bowel disease.

Downers Grove

Motivated Medicine - Dr. Zielsdorf’s goal is to empower patients to reverse chronic disease through a combination of nutrition and science-based, 21st century treatment approaches. Her ideal patients are committed to taking responsibility for their health and are passionate partners in the healing journey. 

El Segundo

Holtorf Medical Group - the best in evidenced-based, integrative medicine that’s not only safe and effective, but gives measurable results. Our physicians are trained to provide cutting-edge testing and innovative treatments to find the answers you deserve, and a treatment plan personalized to your specific condition.