Paustian IBD Center Faculty & Staff
The IBD Center is staffed by four gastroenterologists and three colorectal surgeons who have clinic hours in the center alongside each other. Our team also includes two IBD nurse case managers, one registered dietician, one specialty pharmacist, one gastropsychologist, two medical assistants and two medical receptionists. Sponsored- and investigator-initiated studies are supported by a divisional research group consisting of a regulatory specialist and three full-time research nurses.
Medicine Faculty
Peter Mannon, MD, MPH
Paustian Center Director

Kathryn Hutchins, MD
Paustian Center Physician

Anita Sivaraman, MD
Paustian Center Physician

Surgery Faculty
Sean Langenfeld, MD, FACS, FASCRS
Paustian Center Surgical Director

Jennifer Leinicke, MD, MPHS, FACS, FASCRS
Paustian Center Surgeon

Matthew Fuglestad, MD
Paustian Center Surgeon

Rishi Batra, MD, MBA
Paustian Center Surgeon

Research Faculty
Jacques Izard, PhD
Paustian Center Research Faculty

Rana Al-Sadi, PhD
Paustian Center Research Faculty

Jiongru Wu, PhD
Paustian Center Research Faculty

Nebraska Medicine Advanced Practice Providers
Regan Clymer, PA-C
Paustian Center APP

Courtney Batra, APRN-NP
Paustian Center APP

Additional Specialists
Marta Jonson, MMN, RDN, LMNT
Clinical Nutrition/Nutrition Special Service Therapist

Aisha Yapp, PhD
Clinical Psychologist

Carrie Nixon, PharmD, BS
Retail/Specialty Pharmacist
