Office of Institutional Compliance Leadership Team

Photo of Tobin BoenigToby Boenig, JD
Vice President and Chief Compliance Officer

Tobin (Toby) R. Boenig, J.D., is responsible for planning, implementing and maintaining an effective compliance program at UTMB. He monitors and reports results of compliance efforts across the institution and provides guidance to executive management regarding compliance issues and requirements, as well as regulatory law advice.

Prior to UTMB, Toby served as a Compliance Attorney at The University of Texas M. D. Anderson Cancer Center (M. D. Anderson) in the Institutional Compliance Office and was responsible for providing legal research and analysis in privacy and corporate compliance matters. Toby also chaired M. D. Anderson’s multi-disciplinary Privacy Compliance Committee. After finishing law school, Toby worked as an associate in the Health Section of Vinson & Elkins, L.L.P. He also co-authored “Research Institutions Under Scrutiny - Reimbursement, Compliance Issues, and the False Claims Act,” which was published in the October 2005 issue of Aspen Publishers’ Reimbursement Advisor. Toby received his bachelor’s degree from Texas A&M University and his law degree from The University of Texas School of Law.

Photo of Brad WillbanksBrad Willbanks, JD, MBA
Associate Vice President and Deputy Chief Compliance Officer

Brad T. Willbanks serves as the Associate Vice President and Deputy Chief Compliance Officer for the Office Institutional Compliance. He formerly was in private practice concentrating on healthcare law, contractual issues, and medical malpractice defense before going “in-house” for a large regional healthcare system in South Carolina where he served as the Chief Compliance Officer and In-House Legal Counsel.

Brad left South Carolina and came to the University in the fall of 2010. He assists Toby Boenig with the planning, implementing and maintaining of an effective compliance program at UTMB. He especially focuses on billing compliance issues but also monitors and reports results of compliance efforts across the institution. He provides guidance and regulatory advice to executive management regarding compliance issues and requirements. Brad holds a BS degree in Business Administration, a JD, and an MBA all from the University of South Carolina. Brad is licensed to practice law in both Texas and South Carolina, the United States District Courts, the Fourth Circuit Court of Appeals, and the U.S. Supreme Court.

Image of Craig ConwayCraig Conway, JD, LL. M
Associate Vice President, Institutional Compliance

Craig Conway serves as an Associate Vice President for Institutional Compliance for The University of Texas Medical Branch (UTMB). He focuses primarily on the areas of research compliance,ethics, and conflicts of interest. Craig left his private law practice in Mississippi to obtain an LL.M. (Master of Laws) in Health Law at the University of Houston Law Center. He subsequently served as a research faculty member and Health Law and Policy Analyst for the University of Houston's Health Law & Policy Institute and a contracts and compliance manager at Rice University prior to joining UTMB in 2011. 

Craig holds a B.S. in Public Relations from the University of Florida and a J.D. from the Syracuse University College of Law. Craig is licensed to practice law in Mississippi and Texas.

Photograph of Maria MantillaMaria Mantilla, MD, MHA, CPC, CHC 
Executive Director, Billing Compliance

Dr. Mantilla joined the University of Texas Medical Branch in 2009. As director of billing compliance, she is responsible for developing and implementing content for billing compliance education and training, conducting and overseeing compliance audits, as well as serving as the in-house advisor on hospital and professional billing compliance issues.

Prior to joining UTMB, Dr. Mantilla served as a clinical billing compliance educator at The University of Texas M.D. Anderson Cancer Center in the Institutional Compliance Office, where she was responsible for assuring clinical billing providers were kept abreast and followed federal, state, and institutional billing regulations and documentation guidelines. Before becoming a Texan, Dr. Mantilla worked at Tulane University Hospital and Clinic in New Orleans, Louisiana for over 20 years, where she held various clinical and administrative positions. Dr. Mantilla received her medical degree from the National Autonomous University of Nicaragua and a Masters of Health Administration from Tulane University Health Sciences Center in New Orleans, Louisiana.

Photograph of Shelly WitterShelly Witter
Executive Director of Compliance Programs, Privacy Officer

Shelly has been with UTMB for over 25 years and has been part of UTMB's HIPAA program from the inception. Originally, Shelly was in the Information Services department when she was asked to manage UTMB's HIPAA compliance initiative. In 2005, Shelly left the Information Services department and accepted a position with UTMB's Office of Institutional Compliance. In 2010, Shelly was promoted to Director of Compliance Programs, and Privacy Officer.

As UTMB's Privacy Officer, Shelly is responsible for UTMB's compliance efforts for both HIPAA and FERPA. Shelly is a proud graduate of Southwestern University in Georgetown, Texas and has a BA degree in economics.

Office Contact Numbers
Phone (409) 747-8700
Fax (409) 747-8720

Fraud, Abuse and Privacy Hotline
(800) 898-7679
Hotline web address:


UTMB Health
Office of Institutional Compliance
Mail Route 0198
301 University Blvd.
Galveston, TX 77555-0198