William Agor PsyD
Dr. Angela Chastain
Licensed Clinical Psychologist

Contact Dr. Chastain

Email: angelachastain@doctoragor.com

Phone: 630-621-5824

Dr. Angela Chastain is a Licensed Clinical Psychologist at Agor Behavioral Health Services, Inc. and has been an integral part of this practice for the past six years. Her primary focus is psychological testing, as she thrives on the notion of being able to provide clarification, guidance and knowledge to each of her clients and their families. Her passion for seeking answers and a better understanding of the clients she serves drives her devotion to carefully conceptualize each testing client she is referred.

Dr. Chastain’s positive energy, optimism, sense of humor and desire to highlight her clients’ assets helps to set her clients at ease and is intended to assist each client in feeling more comfortable taking the next steps towards uncovering the good in life. She strives to closely attend to each client’s needs and meet each client where they at in life. She strongly believes that the client should guide their treatment goals and learn ways to establish self-growth and more deeply explore the greatness in each of their lives.

Dr. Chastain’s psychological testing experience includes individuals ranging in age from four to 75, presenting with a variety of diagnostically related concerns, such as attention-deficit/hyperactivity disorder (ADHD), bipolar disorder, autism spectrum, psychosis, anxiety or depression. She feels that in order to fully understand and conceptualize an individual, she must be able to gather information from a multitude of collateral sources rather than solely rely on one source of information. Understanding a client in each setting they are in can provide a clearer picture of their overall level of functioning.

Each evaluation she conducts involves Intelligence Quotient (IQ) testing, several self-report measures, projective tests as well as assessments from an observer (such as a parent, spouse, teacher or coach) so that she can produce a comprehensive, thorough and high-quality psychological report. She values the importance of feedback sessions so she can further explain the results of each of her evaluations. These sessions provide an opportunity for the client (and/or their family members) to gain knowledge, insight and a “road map” to direct their treatment. The reports she produces include a number of recommendations that are specific to the client she has evaluated. It is very important to her that each client is viewed as a unique individual, so each treatment recommendation is designed to cater to their identified needs.

Although psychological testing is her specialty at the practice, Dr. Chastain also provides individual and family therapy. Her approach to therapy is quite similar to psychological testing, in that she always aims to gather as much information as needed in order to fully understand the client. She places a strong emphasis on being an active listener and remaining fully engaged in each of her sessions. She frequently challenges her clients to search for the positives in each situation they are faced with in their day-to-day lives. She also focuses on the impact of sleep, diet and physical exercise in a person’s life and works collaboratively with her clients to explore healthier ways to improve these areas



Dr. Chastain earned her Doctorate of Psychology (PsyD) as well as her Master of Arts (MA) degree from the Adler School of Professional Psychology. She obtained her Bachelor of Arts (BA) from Marquette University. She completed her pre and post-doctoral internships at the Will County Health Department and was then later employed with this agency for over 11 years, primarily treating children and adolescents, ranging in age from three to 18 years old.