About
Mark E. Oberlies, MD is a board-certified internist practicing in West Omaha, Nebraska. He earned his Bachelor of Business Administration in Accounting from the University of Notre Dame in 1986 before completing post-baccalaureate pre-medicine coursework at Creighton University. He went on to earn his Doctorate of Medicine from the University of Buffalo School of Medicine and Dentistry in 1998. Dr. Oberlies completed his internship at Loyola University Hospitals in Maywood, Illinois, then finished his residency in internal medicine at West Suburban Hospital in Oak Park, Illinois.
Dr. Oberlies holds board certification from the American Board of Internal Medicine and brings twenty-five years of combined training and clinical experience across hospital, nursing home, and outpatient settings. He describes himself as a generalist physician devoted to accumulating practical medical knowledge and sharing it with motivated patients. His guiding philosophy centers on listening, collaboration, and mutual trust as the foundation of every patient relationship. His peers recognized his clinical excellence through consecutive inclusion in Best Doctors in America® from 2007 to 2018. He is a member of the American College of Physicians and the American Society of Internal Medicine. Beyond his practice, Dr. Oberlies personally commits to the healthy diet and lifestyle he recommends to his patients.
Education & Training
Undergraduate
University of Notre Dame, B.B.A. Accounting (1986); Creighton University, Post-Baccalaureate Pre-medicine (1991)
Medical School
University of Buffalo School of Medicine and Dentistry, Doctorate of Medicine (1998)
Residency
Internal Medicine, West Suburban Hospital, Oak Park, IL (1999-2001)
Additional Training
Internship, Loyola University Hospitals, Maywood, IL (1998-1999)
Certifications
Who is Dr. Oberlies right for?
Dr. Oberlies is a strong fit for adults who want an engaged, relationship-driven approach to internal medicine. Patients managing chronic conditions or complex health histories benefit from his broad generalist experience across hospital and outpatient settings. He works especially well with motivated individuals who want to collaborate actively on their long-term health and well-being. Patients who value a physician who listens carefully, explains clearly, and stays accessible after hours will find his style a natural match.
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Frequently Asked Questions
Dr. Oberlies specializes in internal medicine and manages a wide range of adult health conditions. His generalist background includes experience treating chronic diseases such as diabetes, high cholesterol, and hypertension. He focuses on prevention alongside active disease management.
Yes, Dr. Oberlies holds board certification from the American Board of Internal Medicine. He earned his medical degree from the University of Buffalo School of Medicine and Dentistry and completed his internal medicine residency at West Suburban Hospital in Oak Park, Illinois.
Dr. Oberlies bases his practice on listening, collaboration, and mutual trust. He believes a strong doctor-patient relationship is essential to good medicine. He works with patients to understand where they are and helps them reach their personal health goals.
Dr. Oberlies completed his internship at Loyola University Hospitals in Maywood, Illinois, followed by his internal medicine residency at West Suburban Hospital in Oak Park, Illinois. He earned his medical degree from the University of Buffalo School of Medicine and Dentistry in 1998.
Yes. Dr. Oberlies earned peer selection for inclusion in Best Doctors in America® every year from 2007 to 2018. He is also a member of the American College of Physicians and the American Society of Internal Medicine.
Yes. Dr. Oberlies holds a staff appointment at CHI Lakeside Hospital in Omaha. He also maintains established relationships with a broad network of specialist physicians in the community for referrals when needed.
Dr. Oberlies sees adult patients from greater Omaha, Council Bluffs, and the surrounding areas. He focuses on motivated, engaged patients who want to take an active role in managing and improving their health over the long term.
Dr. Oberlies brings twenty-five years of combined medical training and clinical experience. He has worked across hospital, nursing home, and outpatient settings throughout his career.
Doctor profile last updated April 11, 2026