Our Staff

Our staff has extensive training and years of experience to guide our work with you or your loved one.  Find out more about each provider's unique training and qualifications here.

David Lott, M.D.

Dr. Lott is a board certified and licensed physician who has been treating patients with addiction and other mental health problems for 15 years. 
He previously served as the Medical Director of Addiction Services at Linden Oaks Hospital at Edward-Elmhurst Healthcare in Naperville, IL, is a faculty member at The University of Illinois College of Medicine (Chicago campus) and is President-Elect of the Illinois Society of Addiction Medicine. 

He advocates for improved research, treatment access, and community education.


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Sarah Masri, MMS, PA-C

Sarah’s practice includes management of depression, anxiety, substance use disorders, and many other conditions in both adults and adolescents.  She also has specific interests in the psychiatric management of women during pregnancy and the postpartum period.

Sarah is a recipient of NCCPA’s Certificate of Added Qualification (CAQ) in Psychiatry. Sarah received her Master of Medical Science in Physician Assistant Studies from Midwestern University in 2013.

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Judith Sheldon, PMHNP

Judith Sheldon is a board certified and licensed Psychiatric-Mental Health Nurse Practitioner with 25 years of experience providing exceptional, compassionate, and evidence-based care to her patients.
She obtained her Associates of Science degree in nursing in 1992 from Prairie State College in Chicago Heights, IL. She went on to earn her Bachelor of Science degree in nursing in 2001 and her Master of Science degree in nursing as a Family Nurse Practitioner in 2013 from Olivet Nazarene University, and later received certification as a Psychiatric-Mental Health Nurse Practitioner from University of St. Francis.

She has provided buprenorphine and other addiction treatment for many years and has been approved by SAMHSA to have an increased number of buprenorphine patients.  In addition, she provides comprehensive general psychiatric treatment as well as ketamine and esketamine for treatment-resistant depression.

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Suzette Papadakis, LCPC, NCC, CGT

Suzette has worked since 1996 in the mental health and substance abuse service industry, providing mental health care to individuals, couples and families. She has worked with a wide range of issues such as addiction and recovery, affairs, domestic violence, trauma, and parenting issues. She is a Certified Gottman Therapist and has an expertise in treating couples with addiction issues. 

Suzette holds a Bachelor of Arts Degree in Psychology with a minor in Religious Studies from Carthage College in Kenosha, Wisconsin. She also holds a Master's Degree in Human Services Counseling, graduating Magna Cum Laude from National-Louis University in Wheaton, Illinois.

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Melissa Sautter, DNP, APRN, PMHNP-BC

Melissa Sautter has been working in mental health for over 13 years. She is passionate about improving mental health at the individual, family and community levels. Her special areas of interest include anxiety, depression, PTSD and autism spectrum disorders.

Melissa is a certified Family Psychiatric-Mental Health Nurse Practitioner through the American Nurse Credentialing Center and received a 40 Under 40 Emerging Nurse Leader Award in 2019. 

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