Southern Illinois Associates LLC
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.
Get Well Behavioral Health Clinic
Southern Illinois Associates, is a psychiatric practice serving since 2004. Our providers treat common and serious mental health conditions like major depression, bipolar disorder, anxiety disorders, psychotic disorders, dementia, ADHD and other disorders
“Our mission is to offer superior quality behavioral healthcare that patients recommend to their family and friends, physicians prefer for their patients. Helping our community one person at a time“
Dr. Nigam
Medication Management
We treat depression, anxiety, ADHD, bipolar disorder, OCD, grief, PTSD, trauma, and more. If you are struggling with any of these conditions, please reach out.
Psychotherapy
For many people, psychotherapy combined with medication works best. It can help identify underlying concerns that may be adding to your depression.
Transcranial Magnetic Stimulation
We are Gold provider for Neurostar rTMS. Neurostar uses Transcranial magnetic stimulaton (rTMS) to target key areas of the brain that are underactive in people with depression.
Opioid Addiction
We provide medicaton assistant treatment
Tele-Psychiatry
As covid restrictions are being lifted, Tele-psychiatry is available only for sick and immunocompromised people. Please contact office about our policy.
Esketamine Treatment
it is a prescription medicine, used along with an antidepressant taken by mouth, for treatment-resistant depression (TRD) in adults.



Sanjay K Nigam, M.D
I founded Southern Illinios Associates in 2004. I want to promote positive mental health, improve acess to care to patient. I believe in indiviualized care and our mission is “Helping our Community, one person at a time”
We Have Experience With…
Medication Management
We treat depression, anxiety, ADHD, bipolar disorder, OCD, Grief, PTSD, trauma, and more. We would like to help you achieve a balanced state of mental health.
Treatment Resistant Depression
If you have been suffering from depression which is not improving, you might have treatment resistant depression. We proivde TMS and spravato Treatment.
Transcranial Stimulation Therapy
Neurostar TMS is non invasive FDA approved treatment for treatment resistant depression.
Spravato / Esketamine Treatment
SPRAVATO® is a non-competitive N-methyl D-aspartate (NMDA) receptor antagonist indicated, in conjunction with an oral antidepressant, for the treatment of:
• Treatment-resistant depression (TRD) in adults.
• Depressive symptoms in adults with major depressive disorder (MDD) with
acute suicidal ideation or behavior.
Psychotherapy
Psychological counseling (psychotherapy) by a psychiatrist, psychologist or other mental health professional can be very effective. For many people, psychotherapy combined with medication works best. It can help identify underlying concerns that may be adding to your depression
Recent Post and Updates
Headings:• The OXD01-001 Study for OUD• Opioid Use Disorder Research• Opioid Use Disorder Study• Investigational Digital Therapy• Opioid Use DisorderDescriptions:• Now enrolling subjects with opioid use disorder to evaluate an investigational digital therapy.• If you...
TMS Post
Let us help you rediscover your life without depression and find your true direction. Visit our website to learn more about NeuroStar. WWW.SIA-LLC.NET
Percentage Of Outpatient Medical Visits That Led To A Benzodiazepine Prescription Doubled From 2003 To 2015
Percentage Of Outpatient Medical Visits That Led To A Benzodiazepine Prescription Doubled From 2003 To 2015, Researchers Say. The NPR (1/25, Chatterjee) “Shots” blog reported, “The percentage of outpatient medical visits that led to a benzodiazepine prescription...
Get In Touch
Patient portal
Address
6805 IL-162,
Suite 201
Maryville, IL 62062
Hours
Mon - Fri: 8:30 Am to 5 PM
Call
(618)288-5019