Joyful Couple
About Us

Gastroenterologist in Wichita, KS

William J. Salyers, Jr., MD, MPH, FACP

William J. Salyers, Jr., MD, MPH, FACP

Associate Professor and Chair, Department of Internal Medicine

Program Director – Internal Medicine Residency

Division Chief – Gastroenterology

University of Kansas School of Medicine – Wichita

Learn More About Dr. Salyers

 


Nathan Tofteland, MD

Nathan Tofteland, MD

Associate Professor – Department of Internal Medicine

Program Director – Internal Medicine/Pediatrics Residency

Division – Gastroenterology

University of Kansas School of Medicine – Wichita

Learn More About Dr. Tofteland

 


Sarah Rooker, DNP, APRN

Sarah Rooker, MPA-CHC

Sarah Rooker, DNP, APRN is a board-certified nurse practitioner by the American Association of Nurse Practitioners. She earned her Bachelor of Science in Nursing from Wichita State University in 2013 and her Doctor of Nursing Practice from Baylor University in 2021. Sarah also earned a Bachelors in Business Administration from Friend’s University in 2010.

Sarah is the coordinator of The Liver Care Clinic at KU – Wichita Gastroenterology with an emphasis in the management of cirrhosis and Hepatitis C. Sarah is a member of the American College of Gastroenterology.


Andrew Osbeck, PA-C, MPA

 Andrew Osbeck, PA-C, MPA

Andrew Osbeck, PA-C is a board certified Physician Assistant.  He earned his Master of Physician Assistant degree from Wichita State University in 2006.  He has 10 years of clinical Gastroenterology experience and joined Dr. Salyers at KU-Wichita Gastroenterology in February of 2013.

Andrew has an emphasis Inflammatory Bowel Disease, specializing in the diagnosis and treatment of Crohn’s Disease and Ulcerative Colitis.  Andrew also offers non-surgical hemorrhoid banding as an option for treatment of internal hemorrhoids.  Andrew is a member of the American Gastroenterological Association and The American College of Gastroenterology.


Cynthia Jantzen, APRN

Cynthia Jantzen, APRN-C is a board certified Nurse Practitioner. She earned her Bachelor of Science in Nursing from Bethel College and her Masters in Nursing from Wichita State University. She joined Dr. Tofteland at KU-Wichita Gastroenterology in April of 2016.

Cindy is a member of the American College of Gastroenterology.

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