Jim Zieba, J.D.
Executive Director

Jim Zieba has served as the Executive Director of the Indiana Optometric Association since September 2005. He obtained his Bachelor of Arts degree in Political Science from Purdue University and his Juris Doctor degree from Valparaiso University School of Law. He is admitted to practice law in the State of Indiana and the Federal District Court for the Southern District of Indiana.
His government relations experience includes:
Director of Government Relations, Indiana State Medical Association
Director of Education Policy, Indiana Chamber of Commerce 
Indiana Senate Intern & Reading Clerk
His legal experience includes:
Staff Judge Advocate, 38th Infantry Division, Indiana Army National Guard
Staff Judge Advocate, Task Force Cyclone, U.S. Army, Afghanistan (2009-2010)
Deputy Staff Judge Advocate, 38th Infantry Division (Mechanized), Indiana Army National Guard 
Deputy Staff Judge Advocate, Task Force Eagle, U.S. Army, Bosnia & Herzegovina (2004)  
Attorney, Bowen & Mader, Richmond, Indiana 
Law Clerk, Consumer Protection Division, Indiana Attorney General's Office 
Law Clerk, United States Senate, Subcommittee on Children, Families, Drugs & Alcoholism.
Jim holds the rank of colonel in the United States Army.  Jim has served with distinction in the Indiana Army National Guard for over twenty-three years as a Judge Advocate. He has been deployed overseas twice, to Bosnia and Afghanistan.

Marilyn Carter
Deputy Executive Director

Marilyn Carter rejoins the IOA to serve as the executive director during Jim Zieba’s military deployment until the spring of 2020. Marilyn was previously with the IOA from 2011-2013. Marilyn served as the infant mortality liaison at the Indiana State Department of Health under health commissioner Dr. Jerome Adams, now U.S. Surgeon General. She also was the director of communications and public relations at the Indiana State Medical Association. Her bachelor’s degree from Indiana University is in political science and communications. Marilyn was a reporter at WRTV in Indianapolis for 15 years. She is a native Hoosier hailing from northwest Indiana.

Barbara Marvel McNutt, J.D. 
General Counsel

Barbara Marvel McNutt joined the IOA as its Interim Executive Director on May 25, 2009. Barb served in this position while Jim Zieba was on active duty for service in Afghanistan. Upon Jim's return to the IOA, Barb agreed to remain on staff as General Counsel. Barb is an attorney who worked for the State of Indiana for many years. She was chief counsel of the Indiana Professional Licensing Agency (IPLA), the state agency that oversees the boards that regulate professions, like the Indiana Optometry Board. Barb also served as IPLA's chief legislative liaison with the Indiana General Assembly. In 2006, Barb received the Governor's Public Service Achievement Award, and in May 2009, Barb was presented with the Distinguished Hoosier Award by Governor Mitch Daniels. Barb is a graduate of Indiana University with a B.S. in Business and a graduate of the Indiana University School of Law in Indianapolis. She is admitted to practice law in the State of Indiana and the Federal District Court for the Southern District of Indiana. 

Lisa Sheridan
Director of Marketing & Communications

Lisa Sheridan serves on the staff of the Indiana Optometric Association as Director of Marketing and Communications. Most recently, Lisa has provided freelance writing, editing, marketing and social media management, while a stay at home mom. She has worked in several industries in the area of public relations and marketing, including tourism, healthcare, architecture and accounting. She has also served as a copy editor on several publications. Lisa is a graduate of St. Joseph’s College in Rensselaer, Indiana, and received a Master of Library Science from Indiana University.

Bridget Sims
Membership Secretary/Receptionist

Bridget Sims joined the IOA staff in September 1996. She serves as membership secretary and receptionist. Bridget is responsible for maintaining IOA member records and data base management. Other duties include member recruitment, responding to member inquiries, accounts receivable, C.E. registrations, reports and assisting in various projects for the executive staff.
Bridget received the Meritorious Service Award in April 2016 for twenty years of service to the members of the IOA.  She also contributed to the following achievements: 2007 AOA "Best New Member Growth Certificate of Achievement and 2009 AOA "Drive for 65 Membership Campaign (IOA won $1000 prize).