Melissa Ackerman, PsyD
Dr. Ackerman received her bachelor of arts degree in psychology at the University of Denver. She received her doctorate degree in clinical psychology at the California School of Professional Psychology - Alameda campus. She is a generalist who works with people across the lifespan and specializes in children, adolescents and families. Dr. Ackerman also has extensive training and work experience in treating individuals who have a history of trauma (physical abuse, sexual abuse, emotional abuse and/or neglect as a child). Dr. Ackerman is a member of the American Psychological Association.
Randy Georgemiller, PhD
Dr. Georgemiller received his undergraduate degree from the University of Michigan and doctorate from the Fuller Graduate School of Psychology in Southern California. He specializes in neuropsychology, geropsychology, substance abuse disorders, and aviation psychology. He is a member of the Illinois Psychological Association, National Register of Health Service Providers in Psychology, International Neuropsychological Society, and National Academy of Neuropsychology. Dr. Georgemiller is Past President of the Illinois Psychological Association and was named a Fellow and 1993 Distinguished Psychologist by the organization. He was elevated to Fellow Status in the American Psychological Association in 2007 and is Past President of Division 44 of the APA. He has been a consultant to Medicare B of Illinois, the Federal Aviation Administration Office of Aerospace Medicine, and various healthcare organizations.
Sayaka Machizawa, PsyD
Dr. Sayaka Machizawa received a doctorate in Clinical Psychology from The Chicago School of Professional Psychology and a B.A. in Psychology from Cornell College in Iowa. As a Licensed Clinical Psychologist, she works at Georgemiller, Whyte, and Associates where she specializes in neuropsychological, forensic, and psychological fitness-for-duty evaluation. She works as an Associate Director of the Community Partnerships Department and Assistant Faculty at the Chicago School of Professional Psychology. She also works as an advisor, consultant, and facilitator for business consulting companies, including Japan Intercultural Consulting and Daishinsha. She has been involved in design research for major corporations including Lexus and Sega. She serves as an Assistant to Secretariat for International Council of Psychologists. She is also an active member of American Psychological Association.
Susan McCracken, PhD
Dr. Susan McCracken received her undergraduate degree from Northwestern University and her doctorate from DePaul University. She is a clinician, educator and consultant who specializes in the treatment of child and adolescent disorders, anxiety disorders, eating disorders and psychological aspects of medical disorders. She is a part-time faculty member at the University of Chicago, School of Social Service Administration and teaches professional development workshops throughout the Chicago area. She is a member of the Illinois Psychology Association, the Association for Applied Psychophysiology and Biofeedback, and is a Senior Fellow of the Biofeedback Certification Institute of America.
Bonnie L. Whyte, Ph.D.
Dr. Whyte received her undergraduate degree from Michigan State University and her doctorate in psychology from the University of Illinois at Urbana - Champaign. Internationally published in eating disorders, Dr. Whyte also specializes in a variety of medical psychology issues. She is active in treating young adults, adults, and senior adults. She is a consultant to the Cancer Care Center and Cystic Fibrosis clinics at Advocate Lutheran General Hospital. Dr. Whyte is a member of the American Psychological Association, Illinois Psychological Association, International Academy of Behavioral Medicine, Counseling and Psychotherapy and National Association of Sports Psychologists.
Donna Bock, Customer Service Representative
Ms. Bock is the friendly voice greeting most callers to our practice. She coordinates clerical and administrative responsibilities for the practice. Currently she focuses on completing patient intakes and scheduling, verification of insurance benefits, and insurance payment disputes.
Nico Gozal, Practice Manager
Mr. Gozal joined the practice in 2005 after gaining several years of experience in various customer service industries. His responsibilities include day to day management of administrative services.
Katelyn Sehner, Administrative Assistant
Ms. Sehner completes various administrative tasks such as patient record management, verification of insurance benefits, and data input.