Meet Our Liver and Intestine Team


Alan Langnas, DO

Wendy J. Grant, MD

Shaheed Merani, MD

David F. Mercer, MD, PhD, FRCS(C)

Luciano Vargas, MD


Nathalie Khoury, MD

Wuttiporn "Shane" Manatsathit, MD

Tim McCashland, MD

Marco A. Olivera-Martinez, MD

Thoetchai “Bee” Peeraphatdit, MD

Faruq Pradhan, MBChB

Fedja Rochling, MD

Pediatric Gastroenterologist/Hepatologist

Emily Dietle, MD

Warapan Nakayuenyongsuk, MD

Ruben E. Quiros, MD

Emille Reyes-Santiago, MD

Advanced Practice Providers - Adult

Katherine Brodahl, PA

John Beckenhauer, PA

Chaeli Fortina, RN, APRN-ACC, PCC

Reagan Huber, PA

Kathryn Janiak, PA

Erica Parish, AGACNP

John “Brian” Thornton, RN, APRN

Robyn Thorson, PA

Annetta VanEvery, RN, APRN, AGACNP

Misty Wahab, RN, ANCC, FNP

Advanced Practice Providers - Pediatric

Kelle Jindra, APRN-ACC

Trudie Owens, RN, APRN-ACC

Angela Schaecher, DNP, PNP-AC/PC

Solid Organ Transplant Director

Lisa Jansen, MPA

Liver/Intestinal Transplant Administrator

Tracy Hanzek, BS

Liver/Intestinal Transplant Manager

Mary Clark, MSN, RN, CCTC

Transplant Nurse Coordinators - Adult

Jenna Booth BSN, RN

Kimberly Butler BSN, RN

Sarah Ferguson BSN, RN

Jordyn Giles BSN, RN

Coeta Hampton BSN, RN

Shonda Knop MSN, RN

Lyndsey Lynch Nunn BSN, RN

Robyn Reynolds BSN, RN

Julie Rongone BSN, RN, CCTC

Wendy Scholl BSN, RN

John Taylor BSN, RN 

Owen Treiber BSN, RN, CCTC

Danielle Treska BSN, RN, CCTC

Stacie Williams BSN, RN, CCTC

Transplant Nurse Coordinators - Pediatric

Jaime Carney BSN, RN

Brandi Gerhardt MSN, RN

Sarah Iwansky BSN, RN, CPN

Courtney Pinkelman BSN, RN

April Romans BSN, RN

Pattie Turner BSN, RN

Transplant Pharmacists

Molly Henry, Pharm.D., BCTXP – Adult

Megan Keck, Pharm.D., BCPS – Pediatric

Mary Leick, Pharm.D., BCPS, BCTXP – Adult

Abigail Servais, Pharm.D., BCTXP – Adult

Transplant Dietitians - Adult

Laura Beerman, RD, LMNT

Hilary Catron, MS, RD, LMNT

Karley Culwell-Smith, RD, CNSC

Marta Jonson, MMN, RD, LMNT

Transplant Dietitians - Pediatric

Brandy Hobson, RD, LMNT

Angie Iverson, RD, LMNT

Samantha Logan, MS, RD, LMNT

Raelyn Polenz, MMN, RD, LMNT

Transplant Social Work

Delicia McGhee PLMHP, PCMSW – Pediatric

The Intestine and liver teams of physicians are supported by a multidisciplinary group of specialists including transplant nurse coordinators, nurse practitioners and pharmacists trained in treating the unique health conditions faced by transplant recipients. Our team also includes psychiatrists, psychologists, social workers and child life specialists to help recipients and donors navigate the emotional and behavioral aspects of the transplantation process. Financial and pharmaceutical counselors are also on hand to help patients with financial considerations and concerns.