Jill Antel, MSW, LSW
Licensed Social Worker
Jill has seven years of experience working in mental health and behavioral health working with children, teens, and adults. She served the Mercer County, PA community as a Behavioral Health Technician in the schools, homes, and community. She was also a Psychotherapist, Mobile Therapist, and Behavior Consultant. Jill attended Youngstown State University and graduated with a Master of Social Work in 2020. She is a Licensed Social Worker in Ohio and Pennsylvania. Her experience and therapeutic techniques include, but are not limited to, Cognitive Behavioral Therapy (CBT), mindfulness, trauma-informed practice, activity therapy, play therapy, poetry therapy, art therapy, and solution-focused therapy. Jill also has experience working with the LGTBQIA population and helping trans clients before, after, and during transition to move forward on a path that best represents the truest self.  

Jennifer Arbogast-McClellan, MSEd, LPCC-S, CCJSOTS, CATP
Licensed Professional Clinical Counselor
Certified Clinical Juvenile Sex Offender Treatment Specialist

Certified Child and Adolescent Trauma Professional

​Certified Clinical Trauma Professional
Jennifer has had more than 20 years experience counseling children, adolescents, adults, seniors and couples. She has worked with schools, drug court, most counties in the state of Ohio, probation offices and veteran’s services.  

Marilyn Burton

Office Manager

Jill Thompson, MSEd., LPCC

Licensed Professional Clinical Counselor

Jill has been working in the mental health field for over 20 years specializing in children and adolescents, adults, and family issues.  She is also an adjunct teacher at Youngstown State University and a presenter at Mahoning County Divorced Parents Workshops.

Heather McCaslin, MA, LPC
Licensed Professional Counselor

Heather graduated with a B.A from the University of Redlands with a major in Psychology in 2010. Immediately pursued the mental health field working  and took on roles as a teacher counselor in a milieu setting with children, a primary counselor in a residential facility for adults, as a therapeutic behavioral coach in a high school setting, a RBT with children and as a family liaison to connect services within the schools / community for troubled youth. Following 10 years of experience in the field sought my MA in Clinical and Mental Health Counseling through Walden University and completed school in 2021.  As a LPC, her preference is to work from a systemic, collaborative, strength-based approach that is mindful of cultural, ethnic and economic concerns to promote self love and growth.  In working from this approach she hopes to help clients acknowledge the various unique contexts which impact their lives, connect with their strengths, and learn new ways to live. Through utilizing various therapeutic approaches including family systems, CBT and Adlerian theories, she hopes to provide an empathetic, safe and non judgemental space where clients can process and heal. 

Albert M. Pondillo, PhD


Clinical Psychologist

Dr. Pondillo is a licensed psychologist in Ohio and Pennsylvania.  He has over 30 years of experience in mental health, which includes specialized assessment and treatment for individuals with developmental disabilities.  In addition to his work at Oakwood Counseling Center, Inc., Dr. Pondillo has been an adjunct professor of Psychology at Youngstown State University for nearly 30 years.

Barbara Yonnotti, MSEd, BCBA, LPC

Assistant Clinical Director
Licensed Professional Counselor
Board Certified Behavior Analyst

Certified Ohio Behavior Analyst

Pennsylvania Licensed Behavior Specialist
Barb has been working in the mental health field for more than 20 years.  She has worked closely with clients, families, school personnel, and other professionals to provide compassionate care.

Heaton Square

1704 North Road, SE

Warren, OH 44484

(330) 856-4111

Fax: (330) 856-5839

Courtni Burton

Administrative Assistant/Billing

JoAnne Carwithen, MSEd, LPCC, LSW

Licensed Professional Clinical Counselor

​Licensed Social Worker

Oakwood Counseling Center, Inc.

Derek Mihalcin, PhD, BCBA-D, COBA

Clinical Director

Clinical Psychologist

Board Certified Behavior Analyst - Doctoral

Certified Ohio Behavior Analyst

​Certified Autism Spectrum Disorder Clinical Specialist

​Dr. Mihalcin has been working in the mental health field for over 23 years.  He has worked with many families, schools, and businesses in successfully improving behaviors of children, adolescents, and adults using evidence-based treatment strategies.  He has extensive experience working with clients with a wide range of diagnoses, including Autism Spectrum Disorder.  He also has many years of experience as an Accreditation Manager involved in maintaining compliance with the Joint Commission regulatory standards.  Finally, Dr. Mihalcin has experience as a graduate professor and a national presenter in Applied Behavior Analysis.

Maggi Rihel, MSW, LPC
Licensed Professional Counselor
Maggi Rihel graduated with a Bachelor’s of Social Work from Brescia University in 2018, and continued on to graduate from Walden University with a Master’s of Clinical Mental Health Counseling in 2022. She uses an eclectic approach that adapts with the needs of each client, and utilizes a person-centered approach.