Our Team

Shane Sims
Co-Owner / Behavior Clinician


Robert Spicuzza
Co-Owner / Behavior Clinician

Amanda Alstatt
Executive Director

Kim Zimmerman
Director of Behavioral Services
- Operations Manager for Supported Living,
- Program Coordinator for Supported Living,
- Human Resource Coordinator
- Lead staff working with individuals with disabilities
Prior to working with individuals with disabilities, Kim served those with mental illnesses and substance abuse as a Mental Health Tech at Southwestern Mental Health Services, and Stepping Stones. Kim Zimmerman has a master’s degree in social work from University of Southern Indiana. Upon completing her master’s degree, Kim completed her internship with ResCare as a Behavioral Clinician. Kim Zimmerman has her bachelor’s degree in social work and psychology from University of Southern Indiana. Upon earning her bachelor’s, Kim Zimmerman served internships at Evansville Children’s Psychiatric Center, Aurora, and Evansville Juvenile Court System. Kim Zimmerman resides in Evansville, Indiana.

Jen Popka
Operations Director

Bobbie Sublett
Director of Employment Services
Bobbie is well known in the community having provided job placement and related services for 29 years and has a Bachelor’s Degree in Psychology from the University of Southern Indiana. She has been instrumental in developing several programs in the community and has the philosophy that “everyone deserves the opportunity to try to work in the community”. Bobbie has always put the clients needs and desires first when in comes to seeking the appropriate level of employment for the individual. She plans to carry the same values working for APEX.

Evonne Sims
Director of Nursing/Wellness
Kyle Sims
Assistant Director of Behavior Services
Kyle began assisting individuals with developmental disabilities in 2011. Prior to joining APEX BEHAVIORAL SERVICES, he served as Quality Assurance Director and Program Director at an agency in Evansville. During this period, Kyle was responsible for reporting to the state, in addition to maintaining and addressing quality concerns. Kyle received his master’s degree in social work from the University of Southern Indiana. While earning his advanced degree, he completed internships at ECHO Community Health, and APEX BEHAVIORAL SERVICES. Prior to moving to southern Indiana, Kyle worked as a Job Coach for those with special needs.

Jeanie Landrum
Program Director
Ryan Fairchild
Assistant Program Director
Ryan comes from an Apparel Wholesale Distribution background and had been in Management for over 14 years. He acquired a General Manager role in 2015 and ran an Evansville warehouse for 4 years. He enjoys spending his free time with his wife and son.

Melissa Seaton
Job Developer
Melissa began her career in 2012 as a Direct Support Professional working with individuals in group homes. After 5 years of working in this field, she moved to a more low key position. Soon realizing she needed a more people oriented position, Melissa pursued a career as a Job Developer helping clients find jobs. Her free time is devoted to spending time with her family.

Debbie Lefler
Director of Business Development
Prior to joining the APEX BEHAVIORAL SERVICES administrative team, Debbie Lefler was gaining in-depth experience in the field of health services. Most recently, she served as Executive Administrative Assistant at Deaconess VNA Plus, LLC. Prior to that, Debbie was a Certification Clerk with the Vanderburgh County Health Department. She has also served as a Clerical Associate at both The Women’s Hospital, and Deaconess Hospital. In every capacity, Debbie’s expertise contributed to the smooth operation of each organization. She brings creativity, enthusiasm, and dedication to her role here at APEX BEHAVIORAL SERVICES.

Chris Brafford
Program Director
Chris launched his waiver services career in early 2013 and has held positions in the Evansville area as Field Coordinator and Program Director. In June 2017, Chris joined the APEX Team as a Program Director for individuals in the Evansville area. Outside of serving others, Chris enjoys spending time with his fiancé and son.
Cassie Gerling
Assistant Program Director
Cassie started in this field in 2007 working as a Direct Support Professional for a provider in Northwest, Indiana. She moved to Evansville in 2012 and immediately started working for a different provider at Jacob’s Village. Cassie has been part of Team Apex for 5 years and has worked out at Jacob’s Village for 9 years. She has seen many changes there, but the one constant is the feeling of community you have whenever you are there.
In addition to work, Cassie enjoys cooking, watching musicals, and spending time with her two little girls.

Van Haas
Job Developer
Before coming to APEX, Van was a job coach for 4.5 years performing evaluations on clients to determine if they are able to work in the community. After retirement from Vocational Rehabilitation, he worked under a grant for 5 months for Aurora as an intake specialist working directly with the homeless population. Van was also a Vocational Rehabilitation Counselor for almost 35 years. He continues his work with APEX. Van holds a Bachelor’s Degree from IU and a Master’s also from IU with a degree in Counseling and Guidance. He is married to Patty and they have 5 children and 9 grandchildren. Van is also known as “Jasper the Clown” with the Hadi Shrine.

Theresa Stiff
Finance Manager
Paulette Walker
Program Director
Paulette began working with developmental disabilities in 2007 while living in Ohio. Moved to Evansville, in 2011 started working with Arc of Evansville, last four years with the agency she was a Program Coordinator at Arc Industries. In 2020 started working for Apex, became a Program Director with Apex in March of 2021. Paulette in her spare time enjoys time with her family.
Ashlynn Nigh
Program Director
In 2018, Ashlynn began her career in waiver services in 2018. She has served as a program director in the tri-state area. She is currently studying communication disorders and sciences at Maryville University. In July 2021, Ashlynn joined the Apex team as a program director for individuals in the Evansville area. In her free time, she enjoys spending time with her family and her dogs.
Dr. Fania Lee
Level 1 / HSPP
Johnance Streuh
Administrative Assistant

John Nelson
Job Developer
Grant Schaefer
Finance Manager
Prior to joining the APEX BEHAVIORAL SERVICES team, Grant has been employed in the healthcare field for the past 9 years. He has gained knowledge of insurances and billing from previous management positions and has an extensive data entry background. He is excited to continue helping others and keep advancing his knowledge in the healthcare field as part of the finance team with APEX BEHAVIORAL SERVICES.
Jessica Adams
Program Director
Trey Brazell
Program Director
In 2010, Trey began serving individuals with developmental disabilities in a group home setting. Trey gained experience by working as a Direct Support Professional and Residential Manager, and later a Program Coordinator in a sheltered workshop. Trey joined the APEX team in June 2019 as a Program Director.
Samantha Williams
Wellness Nurse
William Barnes Jr.
Behavior Clinician
Jacob Creighbaum
Behavior Clinician
Kristin Creighbaum
Behavior Clinician
Kristin Creighbaum earned her Master’s degree in Health Services Administration from the University of Evansville in 2008, while there, she had the opportunity to study at Harlaxton College in Grantham, England. Kristin completed internships with the Department of Homeland Security, the Warrick County Health Department, and Atria Assisted Living. After graduation, Kristin worked as an Employment Specialist with Evansville ARC and later as a Program Director and Human Resource Coordinator/ Recruiter with Dungarvin Indiana. In both roles, Kristin supported individuals with disabilities and is experienced in transitioning individuals from state-operated facilities to community living. Kristin has also worked in Human Resources and Recruitment within the travel nursing industry. Kristin resides in Evansville, IN with her husband and two children. Outside of work, Kristin enjoys music, art, traveling and spending time with her family.
James Ashby
Behavior Clinician
Analytical, intuitive, and relaxed in nature, James Ashby, served in both the U.S. Navy and U.S. Army. His experience in traveling the world, learning about various cultures and languages, and being goal-oriented are coupled with an associate degree in Intelligence Operations (with honors), an undergraduate degree in psychology, and a master’s degree in social work (with honors). James is a member of the Phi Alpha Honors Society. As a behavioral clinician, James employs various methods ranging from Cognitive Behavioral to Family Systems Theory to promoting the benefits of music therapy. Additionally, James has had some training and experience with suicide prevention. James is an experienced martial arts instructor. His free time is spent socializing, watching movies, playing the occasional video game, and traveling.
Todd Palmer
Behavior Clinician
- Worked as a Day Reporting Officer for the Vanderburgh County Drug Court
- Provided psychiatric treatment at Deaconess Cross Point until 2007
- In 2007, he began working for the University of Kentucky’s Targeted Assessment Program in McLean, Henderson, and Union County, Kentucky. This program provided in-home assessment and referral services to parents struggling with substance abuse, mental health, intimate partner violence, and learning problems.
- Was an Adjunct Professor at Brescia University in Owensboro, Kentucky
- Served as Director of the Social Work Program at Brescia University
Todd joined APEX in 2014. He is married and enjoys attending his children’s school and sports activities, including hockey, tennis, and lacrosse.
Jerriann Spradley
Behavior Clinician
Shelbie Auberry
Behavior Clinician
John Hufstedler
Behavior Clinician
- Helping clients of all ages, and their families
- Serving as a Therapist in an inpatient psychiatric hospital
- Being a Social Worker and Program Coordinator/Developer for several geriatric psych programs
- Serving as a QIDP/Behavioral Consultant at long-term care nursing facilities
- Working as a Behavioral Clinician
In his spare time, John spends time with friends, family, and rooting for the Kansas City Chiefs.
Brian Terry
Behavior Clinician
Brian Terry was born and raised in Henderson, KY. He has over 10 years of experience working with individuals with developmental disabilities. Prior to joining APEX BEHAVIORAL SERVICES, he worked at Ireland Home Based Services as a family counselor. He has an A.A. in Management, B.A. in Human Services Management, and an M.A. in counseling from Liberty University. Brian is married with 3 children and enjoys working out and watching Louisville Cardinal football and basketball.
Heath Singleton
Behavior Clinician
Heath Singleton, Behavior Clinician with APEX BEHAVIORAL SERVICES, has assisted individuals with intellectual disabilities since 2004. He has worked in the residential and group home settings in waiver. He previously worked for Bridges of Indiana, Gibson County ARC in Princeton, and Ireland Home Based Services. Also, he has experience working with Department of Child Services providing in-home services to children and adults. Heath has grown up around immediate and extended family working with individuals having intellectual disabilities throughout his life. Heath earned his Bachelor’s and Master’s degree in Social Work from the University of Southern Indiana. He lives in Evansville with his wife, Jamie, and two children. Heath’s passion in life is his family, friends, sports, traveling, and enjoying life.
Kai Esty
Behavior Clinician
Nicholas Johnson
Behavior Clinician
Nicholas Johnson has been serving individuals with disabilities in our community since 2019. Prior to that, while completing his undergraduate degree in Psychology, he worked with youth in the criminal justice system for several years. While completing his master’s degree in Applied Behavior Analysis, he worked both as a Registered Behavior Technician providing ABA therapy and as a direct support professional providing waiver services. His passions include reading and researching scientific and clinical topics, education, and teaching others how to use behavior management skills to better their lives.
Chelsea Loesch
Behavior Clinician
Chelsea Loesch joins Apex with over 6 years of experience in public service. Chelsea received a bachelor’s degree in Forensic Psychology, and upon graduation began working as a Family Case Manager for the Department of Child Services. Chelsea worked her way up to being a supervisor with the Department but felt a strong desire to serve individuals with disabilities. So, Chelsea went back to school for her master’s in Psychology. During this time Chelsea worked as a Registered Behavior Technician providing ABA therapy. Outside of work, Chelsea enjoys spending time with family and friends, listening to music, traveling, and playing with pets/farm animals!