If you would like to speak with a member of our team, fill out the form on our contact page.

Rachel Linderman

Director of Human Resources Director

Rachel has worked in the human service sector for over 20 years with organizations providing social services, health and wellness programs and now substance use treatment services. Prior to joining CASA-Trinity, she was the Human Resource Director at the Council on Addiction Recovery Services, Inc (CAReS) in Cattaraugus County. In that role, she provided for the operational and human resource needs of the organization for over 65 employees. In human resources, Rachel has found a place to use her skills and energies towards the professional development of the workforce and strategically address organizational workforce needs. She holds a bachelor’s degree in Psychology from the University of Rochester and a master’s degree in Business Administration from St. Bonaventure University. Ms. Linderman also holds a Credentialed Prevention Professional credential, a nationally recognized credential in the Prevention field.

Claire Schlickbernd

Director of Billing and Contracting

Claire, with the help of our talented Billing Department staff, manages billing functions on a daily basis to ensure revenue flow while being quick and compliant. Her team’s motto is “work smarter, not harder” – AK. She has a certification in Coding and Medical Transcription. In her free time, Claire enjoys camping and hiking with her family and friends!

Chelsey Pierce, LMSW

Willow House Residential Program Director in Olean, NY

Continuing to learn and grow in my education and treatment of substance abuse has become a passion of mine.  I most recently graduated from Edinboro University with my master’s in social work.  I received my CASAC 2 (Credentialed Alcoholism and Substance Abuse Counselor – Advanced) in 2020 and I am a Licensed Master Social Worker (LMSW).  I enjoy reading, hiking, playing with my dog, Ellie and most importantly spending time with my baby boy, Finnley.

Sean Smith

Director of Recovery Services

Katherine Whaley, BS, CASAC

Outpatient Clinical Supervisor in Geneseo, NY

Van Pham, BS, CASAC-2

Clinical Outpatient Supervisor in Dansville, NY

Kelsey Tascone, PSY.M., CASAC

Wellness Center Team Lead in Dansville, NY

Kirstyn Applin, MA, CASAC-AD

Care Management Supervisor

Keith Woods, BA, CASC- AD

Outpatient Clinical Supervisor in Olean, NY

Chelsey Pierce

Willow House Residential Director in Olean, NY

Duane Wolfe

Willow House Residential Program Coordinator in Olean, NY

Keith Woods

Outpatient Clinical Supervisor in Salamanca, NY

Chelsea Menio, BS, CASAC-AD

Outpatient Clinical Supervisor in Hornell, NY

Melissa Olin, MSAC

Inpatient Clinical Supervisor in Hornell, NY

Marilyn Singleton, CASAC

Inpatient Team Lead in Hornell, NY

Melinda Hester, BS, CASAC-2

Community Outreach and Engagement Supervisor, Elmira, NY

Bailey O’Rourke, BA, CASAC-AD, CRPA

Outpatient Lead Clinical Supervisor in Elmira, NY

Linda Williams, BSW, CASAC-AD

Outpatient Clinic Team Lead In Elmira, NY

Alicia Smalley, BS, CASAC

Outpatient Clinic Team Lead in Elmira, NY

Daniel Kizale, BS, CAAC

Outpatient Clinical Supervisor in Sayre, PA