Pierce Street Same Day Surgery
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Dr. Jeffrey Michalak, DO
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About Jeffrey Michalak, DO

Dr. Jeffrey Michalak, DO, is a highly trained and board-certified specialist in gastroenterology and internal medicine at Pierce Street Same Day Surgery. With a strong foundation in both academic excellence and clinical experience, Dr. Michalak brings compassionate, patient-centered care to individuals dealing with a wide range of digestive health concerns.

Education & Medical Training

Dr. Michalak received his degree in Bachelor of Science at St. John’s University in Minnesota. He then earned his Doctor of Osteopathic Medicine from the Kansas City University of Medicine and Biosciences in Missouri.
He went on to complete his internship and residency in Internal Medicine at the University of Kansas Medical School, where he also pursued an intensive fellowship in Gastroenterology and Hepatology. His extensive training equips him to diagnose and manage complex gastrointestinal and liver conditions with skill and precision.

Certifications & Professional Credentials

Dr. Michalak is Board Certified by the American Board of Internal Medicine in both Internal Medicine and Gastroenterology. His commitment to continued learning and evidence-based practices ensures his patients receive the most advanced and effective care available.

Pierce Street Same Day Surgery

2730 Pierce StreetSuite 100 Sioux City, IA 51104
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