College of Dentistry & Dental Clinics Administrators

Galen B. Schneider
Galen B. Schneider, D.D.S., Ph.D, FACP
Interim Dean
Executive Associate Dean
Associate Dean for Faculty
Professor, Department of Prosthodontics

Dr. Schneider joined the UI College of Dentistry in 1999. He served as Department of Prosthodontics chair from 2006-2011. Dr. Schneider is currently interim dean, executive associate dean, dean for faculty, and a professor in the Department of Prosthodontics with a joint appointment in the Iowa Institute for Oral Health Research. In addition, he is a board-certified prosthodontist and is actively involved in patient care and teaching within the Department of Prosthodontics. His research focuses on bone cell biology as it relates to implant osseointegration and bone tissue engineering.


Scott K. Arneson
Scott K. Arneson, M.B.A.
Associate Dean for Finance and Facilities

Scott Arneson joined the UI College of Dentistry in 2003 as assistant dean for finance and facilities. Mr. Arneson is responsible for the business and financial administration of the College of Dentistry, overseeing an annual budget of $44 million.


Brian Howe
Brian Howe, D.M.D., M.S.
Director of Clinics
Assistant Professor, Department of Family Dentistry

Dr. Howe was in private practice in Madison, Wisconsin, from 2006-2011 and in Iowa City, Iowa, from 2013-2015. He was an adjunct faculty in the Department of Family Dentistry from 2013-2015.


Michael J. Kanellis
Michael J. Kanellis, D.D.S., M.S.
Associate Dean for Patient Care
Interim Department Executive Office, Department of Prosthodontics
Professor, Department of Pediatric Dentistry

Dr. Kanellis joined the College of Dentistry in 1994 following 13 years in private practice. Dr. Kanellis' teaching responsibilities include both didactic and clinical predoctoral and postdoctoral education.


Rachael Kowbel
Rachael Kowbel, M.Ed.
Director, Dental Student Admissions

Ms.  Kowbel has been employed at the University of Iowa since 2011, serving as an Associate Director of Engagement & Recruitment in the Tippie College of Business & then joining the College of Dentistry in 2015.  Previously, she has held roles at Arizona State University and the University of Wisconsin-Stevens Point. 


Michelle Krupp
Michelle M. Krupp, Ed.D.
Associate Dean for Education and Curriculum
Assistant Professor, Department of Family Dentistry

Dr. Krupp joined the College of Dentistry in 2015 in the Office of Education. She became Associate Dean for Education in 2020 and provides programmatic expertise and evaluation to ensure student success. 


Chuck McBrearty
Charles McBrearty, B.S.
Assistant Dean for Technology and Media Services

Amanda Shoemaker
Amanda Shoemaker, B.A., M.S.
Director, Alumni Relations and Continuing Education

Sherry Timmons
Sherry Timmons, D.D.S., Ph.D.
Associate Dean for Student Affairs
Clinical Associate Professor, Department of Oral Pathology, Radiology and Medicine

Dr. Timmons became a faculty member in the Department of Oral Pathology, Radiology and Medicine in 2002 following completion of a PhD in oral science from Iowa in 2001 and a general practice residency in 2002.  In 2018, Dr. Timmons became Associate Dean for Student at the UI College of Dentistry.


Xian Jin Xie
Xian Jin Xie, Ph.D.
Associate Dean for Research
Centennial Professor and Director, Division of Biostatistics and Computational Biology
Professor, Iowa Institute for Oral Health Research & Department of Preventive & Community Dentistry
Professor, College of Public Health Department of Biostatistics

Dr. Xie joined the University of Iowa College of Dentistry in 2017 and is now the Associate Dean for Research for the college and Centennial Professor. Before coming to Iowa, Dr. Xie was a faculty member (Assistant, Associate and Full Professor, 2005-2017) and Director of Biostatistics Shared Resource (2008-2017) in the Simmons Comprehensive Cancer Center and Department of Clinical Sciences at the University of Texas Southwestern Medical Center.