Gastrointestinal Associated Specialists
Call Us: (816) 527-0031

Meet The Physicians

Compassionate care that puts you first.

At Gastrointestinal Associated Specialists, we chose careers in healthcare because we care about others. And this is reflected in everything we do, including how our doctors and friendly, caring staffers attend to your needs, desires and comfort. When you’re in our care, you’ll be treated with the kindness, honesty, patience and respect we would demand for our own loved ones.

James M. Walden, Jr., MD

James M. Walden, Jr., MDBoard-Certified: Gastroenterology, Internal Medicine
“I’ve always felt that the best career for me would be one that involved helping others. And after more than two decades as a gastroenterology specialist, I take great pride in being able to do that to a very high standard for everyone who trusts me with their care. I also know that there is usually more than one way to address a particular problem… and that different people often require a different approach. Gastrointestinal problems are often subtle and complex, and this requires of me both time and commitment. But this is my very purpose. I will work to resolve your problem, and I’ll do it with the honesty, diligence, tenacity and focus you deserve.”
Fellowship: Gastroenterology, Truman Medical Center, Kansas City, MO
Residency: Internal Medicine, University of Missouri – Kansas City, Kansas City, MO
MD: Baylor College of Medicine, Houston, TX
BS: Sociology, Pomona College, Claremont, CA
Assistant Clinical Professor: Medicine, University of Missouri – Kansas City, Kansas City, MO, 1989-91
Member: American College of Gastroenterology, Missouri State Medical Association, Metropolitan Medical Society
Military Service: Major, Meritorious Service Medal, Internal Medicine Specialist, Minot Air Force Base, ND, 1984-87

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Gregory A. Schnell, MD, FACP

Gregory A. Schnell, MDBoard-Certified: Gastroenterology, Internal Medicine
Fellow: American College of Physicians
“Through my formative years, and my schooling in particular, science was always something that I enjoyed. And when thinking about a career path, I liked the idea of spending my time helping others like the physicians I respected and admired. After more than two decades as a gastroenterologist, I feel fortunate to be able to help people feel better, be healthy and enjoy life. And I know that doing this starts with treating you as a person, not as a diagnosis or a disorder. I seek to understand you, to listen, to always be open, careful and dedicated. While my experience and skill as a specialist are essential, so is my being truly engaged in your care.”
Fellowship: Gastroenterology, University of Missouri – Kansas City, Kansas City, MO
Residency: Internal Medicine, University of Missouri – Kansas City, Kansas City, MO
MD: University of Missouri – Kansas City School of Medicine, Kansas City, MO
BA: Biology, University of Missouri – Kansas City, Kansas City, MO
Assistant Clinical Professor: Gastroenterology, University of Missouri – Kansas City, Kansas City, MO, 1990-95
Member: American College of Gastroenterology, American Gastroenterological Association

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To schedule an appointment with Dr. Schnell or Dr. Walden, please call our office at (816) 527-0031 or use our online Request an Appointment form. For additional information on any condition, treatment or procedure, please visit our Health Education Library.