Our Mission

"To ensure the independence and success of individuals through specialized programming in a variety of settings.”

Our Administrative Staff

Our administrative staff is made up of educators who recognize the specialized skills necessary to serve those with special needs. Each of our administrative staff has worked in the field of special education and all of our service providers are  supported by individuals with expertise in their corresponding fields.

“In addition to the administrative staff below, AIS also employs leaders in the VI, OM, OT, PT, DHH, Autism/Behavior and AT to support the quality programming in their respective fields.”

Karen Walker - President & CEO

The President and CEO of Allied Instructional Services received her bachelor’s degree in visual disabilities with a dual certification in Visual Impairments and Orientation and Mobility from Florida State University (FSU). She continued at FSU to receive her Master’s degree in special education with a concentration in emotional disabilities and learning disabilities. She has been working in the field of blindness/visual impairments and education for the past 25 years and has been privately contracting services for the past 17 years. During her years as an educator, she has been a mentor teacher for student teachers/interns and first year teachers, and she has been employed as an Internship Supervisor for the Vision Program at George Mason University. She is a Past President of the Virginia Association for the Education and Rehabilitation of the Blind and Vision Impaired and has served on the Membership Committee at the National Level. She is dedicated to ensuring that all students receive the appropriate educational services that they need to succeed. Karen began Allied Instructional Services in 2010 with the intention to expand her offering of services to the following service areas: Vision, Orientation and Mobility, Deaf and Hard of Hearing, Occupational Therapy, Physical Therapy, and Interpreters. Karen has built a leadership staff that has expertise in the above respective areas.

Chris Martin - Senior Vice President

As Senior Vice President of Business with Allied Instructional Services, Chris Martin has 25 plus years of experience as an educator. He has a degree in both education and business. As an educator, he has been both a teacher and school administrator. He has experience in intellectual disabilities, autism, emotional disabilities, learning disabilities, and visual impairments. Since 2003, Mr. Martin has been serving education through the business world. In the business world, he has experience in educational technology, Medicaid, data analysis, and staffing school divisions with professional educators/therapist. He has a strong working relationship with many special education directors, assistant superintendents, and superintendents. He understands budgets and budgetary constraints in school divisions, therefore works to create a cost effective solution for each of his educational partners. He works with school divisions until a full solution of staffing is acquired for each of his school divisions in each of the states.

Karen Vay Walker - Vice President of Human Resources & Recruitment

The Vice President of HR and Recruitment, Karen Vay Walker, graduated from Lynchburg College with a bachelor’s degree in Special Education. She comes to AIS with 30 years experience in the education field. Her career began in Richmond City schools, serving children that she believed would benefit from a multi-team approach. While there she was pivotal in creating and securing federal funds for a program called Project Enhance that focused on serving children from a three-tiered approach. Later, she simultaneously pursued a degree in Vision Impairments from UVA and Early Childhood Special Education from VCU. Besides serving as a classroom teacher, an Itinerant Vision Therapist and Developmental Specialist, she was the Program Director and Local System Manager for the Infant and Toddler Connection of Hanover for 15 years. During this time, Karen worked closely with state and local personnel to establish mandated private insurance and Medicaid billing and led state training for Part C implementation of cost agreement fees. She led and supervised a team committed to serving families and facilitated continual training that enhanced her staff’s ability to meet the growing and changing needs in the educational field. Karen utilizes her experience from this role to support AIS’s vision in staffing top notch educators to meet the needs of local school systems and their students. 

Gwyn Suttell, TBVI/COMS  - Vision/Orientation & Mobility Services Coordinator

Gwyn Suttell has been a Teacher of the Blind and Visually impaired and certified Orientation and Mobility Specialist for over 15 years. Gwyn received her BS in Education and Visual Impairments from Kutztown University and her MS in O & M from Salus University. Her career began in Rockingham County. Gwyn had the opportunity to work at Virginia School for the Deaf and Blind (VSDB-S) as their Orientation and Mobility specialist and goalball coach. Later on she moved back to her position as TBVI with Rockingham County schools where she also served on their assistive technology team until 2013. In 2013, Gwyn  was given the opportunity to serve Allied Instructional Services as one of the Lead Teachers of the Blind and Visually. Allied Instructional Services is able to afford her the opportunity to work with more students with blindness and visual impairments across Virginia and use her years of experience to mentor other Teachers of the Blind and Visually. Gwyn is also a member of AER and utilizes every opportunity to enhance her knowledge of visual impairments.

Kristen Lavergne, TBVI/COMS - Vision/Orientation & Mobility Services Coordinator

Kristen Lavergne graduated from the University of Northern Colorado with her Master of ARts in Special Education: Severe Needs Vision. She went on to the Pennsylvania College of Optomery to obtain her Master of Science in Orientation and Mobility. She has been a teacher of Students with Visual Impairments and a Certified Orientation and Mobility Specialist for over 15 years. She began her career in Academy District Twenty in Colorado Springs, Colorado until she moved to Virginia in October 2008. For the next four years she worked for Pulaski County Public Schools as an Itinerant Teacher of the Blind and Visually Impaired. In the fall of 2012, Kristen accepted a contract as a service provider for AIS and accepted the position as a Vision Services Coordinator in 2013. She has continued her involvement with training and presenting in her membership with AER.




Sarah D. Bussey, TBVI/COMS - Vision/Orientation & Mobility Services Coordinator

Sarah Bussey is a Certified Orientation & Mobility Specialist, Certified Teacher of Students with Visual Impairments and Certified Vision Rehabilitation Therapist. She earned her undergraduate degree in Vision Disabilities from Florida State University and her two Master’s Degrees in Orientation & Mobility and Vision Rehabilitation Therapy from Hunter College CUNY. Over the past 9 years, Sarah has worked with state agencies, non-profits, and school districts to provide vision services to their consumers. She has taken the opportunity to work with both children and adults with visual impairments and to teach them how to thrive in their home, school and community environments. Sarah enjoys working alongside her colleagues with the goal of sharing professional experiences and teaching techniques which take students to the next level. 


Chelsey Hall  OTR - Occupational Therapy Services Coordinator


Chelsey received her Bachelor’s of Science in Psychology at Radford University and her Master’s of Occupational Therapy at Virginia Commonwealth University. During her educational and professional experiences, Chelsey has worked in a variety of settings and with people of all ages. She has experience working with clients in the public school setting, skilled nursing facilities, outpatient rehabilitation, early intervention and a pediatric private practice. Chelsey has experience working with children with autism, down syndrome, attention deficit disorder, developmental delay, developmental coordination disorder, sensory processing disorder, and auditory processing disorder. She enjoys working with children of all ages and abilities through direct one-on-one services and social skills play groups to help them maximize their independence in activities of daily living and self-help skills. She enjoys spending time with family and friends, going to the beach, scrapbooking, and is an active member/volunteer at Area 10 Faith Community.


Whitney Carter, DPT - Physical Therapy Services Coordinator

Whitney Carter has a Doctorate of Physical Therapy (DPT) from Elon University. In addition, she has a Certified Weight Train (CWT) and a Clinical Instructor Certified by the American Physical Therapy Associated (APTA CI) credentials. Her undergraduate degree was obtained at Ferrum College, where she also played softball during her four year tenure. While attending Elon, she was the recipient of Best Overall Student Award which required excellent academic achievement, leadership skills, and outstanding clinical performance. She has always been interested in the pediatric field which spurred her interest in leading a children’s exercise group at the local YMCA every Saturday free of charge. She knows how challenging it can be to incorporate physical activity into a daily routine and strongly believes movement and education must be partners for all children to succeed. Good teamwork can overcome any obstacles and every child is capable of great things!


Cheryl Sale, Audiologist - Deaf & Hard of Hearing Services Coordinator

Cheryl Sale is a certified Audiologist and Teacher of the Deaf/Hard of Hearing. She holds a Bachelor of Science degree in Speech-Language Pathology and a Masters degree in Habilitative Audiology from the University of Virginia. She has worked in clinical settings, including UVA Medical Center and Pratt Medical Center, as an audiologist and as a hearing aid specialist. In addition, Cheryl has many years of experience in working in public school systems as a Teacher of the Deaf/Hard of Hearing, Educational Audiologist, and Director of Hearing Impaired Programs.   

Mary Hall – Director of Finance

Mary Hall graduated from St. Bonaventure University with a Bachelor’s of Business Administration. For the past eight years she has worked for Hanover County Public Schools as the Medicaid Account Specialist. She worked closely with occupational, physical and speech therapists to improve their Medicaid reimbursement, growing Hanover’s program by over 500%. In addition, she was able to build a partnership with private insurance companies to institute billing capabilities for Early Intervention Services for the Infant and Toddler Connection of Hanover. While in Hanover she served on the board for the National Alliance for Medicaid in Education in multiple capacities ranging from conference planning, to regional representative, membership chair, and finally treasurer. She also presented at state wide trainings for the VA Department of Education. Since graduating from college, Mary has served on many volunteer boards as treasurer.

Dawn Zepernick - Media Specialist


Dawn Zepernick received her Bachelor’s of Science in Information Systems from Strayer University.  She is a certified by the Library of Congress as a Braille Transcriber and is proficient in Unified English Braille.  Over the past 14 years, she worked for the Virginia Department for the Blind and Vision Impaired (DBVI) as an Information Technology Specialist/Braille Unit Manager.  During her time with DBVI, she worked with, and was exposed to, various types of assistive technologies.  She enjoys working with individuals who are blind and vision impaired to assist them in becoming more independent in their school, home, and community.  She enjoys training by sharing her love of assistive technology with others.