Our office reopens on October 11th. For Emergency go to nearest ER or call 911. 6805 IL-162. Suite 201. Maryville, IL 62062. SIA LLC psychiatry and psychology services emphasize assessment, treatment and management of physiological and psychological health. Our psychiatric staff provides a full range of services for adults.Treatment Resistant Depression‧Services‧About us‧Contact‧Resources‧Transcranial Magnetic Stimulation.