Tippecanoe County Case Managers

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Melissa Derflinger

Case Manager 

Phone: 888.537.5733 Ext. 109

Email: melissa.derflinger@advocacy-links.com

Supervisor: Michelle Jones, 888.537.5733 Ext.11, michelle.jones@advocacy-links.com


Melissa Derflinger has held several different positions working with individuals with intellectual disabilities since 2005, including QDDP and Director of Day Services. She began in the field after volunteering as a Special Olympics Basketball Coach. After this experience, she decided that she wanted to pursue additional ways that she could assist and advocate for individuals with intellectual and developmental disabilities. Melissa graduated from Indiana University at Kokomo and lives in Lafayette, IN. Melissa has been a Case Manager with Advocacy Links, LLC since 2018.


In her free time, Melissa loves spending time with her husband, two sons, and their menagerie of pets. She plays guitar and enjoys gardening, listening to audiobooks and taking on home improvement projects. 

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Sara Fry

Experienced Case Manager / Mentor

Phone: 888.537.5733 Ext. 43

Email: sara.fry@advocacy-links.com

Supervisor: Michelle Jones, 888.537.5733 Ext.11, michelle.jones@advocacy-links.com

Sara began working with individuals with intellectual disabilities and mental illness in 2008. She has worked as direct support, intake specialist, behavioral clinician and in residential settings as a QDDP, supervisor, and director. Sara graduated from Indiana Wesleyan University in 2009 with a Bachelor of Science in Liberal Arts and from Ivy Tech with an Associate of Applied Science in Human Services with certificates in mental health. She is a member of Phi Theta Kappa Honor Society.

Sara enjoys helping others and being a part of their progression. Seeing others achieve their goals makes a difference in the lives of everyone that surrounds the individuals she has worked with. Sara and her husband live in the small community of Galveston. They have seven children and two dogs. They enjoy spending time with their children and attending their various activities

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Jessie Hyzy

Case Manager 

Phone: 888.537.5733 Ext. 133

Email: jessie.hyzy@advocacy-links.com

Supervisor: Michelle Jones, 888.537.5733 Ext.11, michelle.jones@advocacy-links.com


Jessie Hyzy graduated from Southern Illinois University with a Bachelor of Science in Therapeutic Recreation. Jessie has been working with people with intellectual and developmental disabilities since 2012. Jessie has held a variety of positions including direct care, inclusion aid, Recreational Therapist, and Case Manager. She chose to work in this field because she has always had a passion for helping other people, especially those with disabilities who may not be able to help themselves with things that we would otherwise take for granted. She is the proud mother of the most spoiled rescue cat. 

Amanda Vandergriff

Transitional Case Manager 

Phone: 888.537.5733 Ext. 4

Email: amanda.vandergriff@advocacy-links.com

Supervisor: Michelle Jones, 888.537.5733 Ext.11, michelle.jones@advocacy-links.com


Amanda has been in Case Management since 2007, and is a graduate of Indiana University. Born and raised in Indiana, only her love of family, animals, and nature, eclipse her love for helping others.


In addition to case management, Amanda has an extensive background working with forensic psychiatry, as well as day programs. She has been working exclusively with Intakes for Waiver Services for more than 10 years, and is able to assist with any questions you may have.