Meet Our Team

Meet the Experienced Therapists at Anastasi Counseling Services

Finding the right therapist to help you with your mental health issues can be a difficult task, considering that you would want to speak to someone who understands and cares. You'll find that the counselors at Anastasi Counseling Services are not only experienced but also compassionate and dedicated. Call us to schedule an appointment with us and let us help you deal with your needs.

James O. Anastasi

James O. Anastasi

James O. Anastasi has been in private practice since 1977 and has counseled individuals, couples, families, and companies in the Mason City area.

He has also presented many seminars on personal and interpersonal growth and development, therapy issues, and management techniques throughout Iowa in community colleges, companies, and organizations.

He received his BS degrees in psychology and education from the University of Iowa and his MS in community counseling from the Minnesota State University, Mankato. He taught psychology at Mason City High School for five years.

He is a licensed marriage and family therapist and a licensed mental health counselor, a clinical member of the American Association for Marriage and Family Therapy, and the past president of the Iowa Association for Marriage and Family Therapy.

Jim and his wife, Kathy, who is also a licensed marriage and family therapist and a licensed mental health counselor, have been married for 43 years. They have three daughters, three sons-in-law, five granddaughters and one grandson.

Christopher Hager

Christopher Hager is a Licensed Mental Health Therapist (LMHC) and International Drug and Alcohol Counselor (IADC) that provides therapy suited to fit individual needs. He provides an environment that is non-judgmental and accepting of where each new person is while incorporating a light-hearted, yet serious, focus. His clinical experience and treatment history includes; life transition difficulties, anxiety, depression, relationship counseling, substance use, and dual diagnosis treatments.

Modalities Chris incorporates are Cognitive Behavioral Therapy (CBT), Dialectic Behavioral Therapy (DBT), Multi-Dimensional Family Therapy (MDFT), and Solution Focused Therapy. As a Licensed Therapist, Chris has provided supervision to other clinicians working towards certification in LMHC, MDFT, and CADC.

Being raised in a small rural town on a family farm, Chris understands it can be difficult to ask help for any problems, big or small. His goal is to create an environment that is stress-free and conducive to exploring life's difficulties while striving towards positive change. It can seem like we are battling our problems alone, but you do not have to.
Christopher Hager

Alicia Tannahill
Alicia Tannahill

Alicia Tannahill

Alicia Tannahill is a Licensed Mental Health Counselor (LMHC) in the state of Iowa. She received her Bachelor's Degree from Wartburg College in 2015 and her Master's Degree in Clinical Mental Health Counseling from the University of Northern Iowa in 2018.


Alicia works with clients of all ages but takes a particular interest in working with children as young as age three. Alicia is trained in Parent-Child Interaction Therapy (PCIT), Eye Movement Desensitization and Reprocessing (EMDR), and in Play Therapy. She believes in meeting with her clients where they are at and working towards client goals collaboratively and non-judgmentally. Alicia has experience in working with depression, anxiety, trauma, relationships, and behavioral concerns.


Alicia lives in Mason City with her husband, son, and three cats.


Jill Kreimeyer

Jill Kreimeyer is a Licensed Mental Health Counselor (LMHC) that is able to provide therapy based on the needs of the individuals. She provides a non-judgmental therapeutic environment that allows her to support the individual needs for others.  She is comforting and accepting, as well as able to encourage new perspectives to challenge thoughts. Her clinical experience and treatment history includes: anxiety, depression, major life transitions, grief and loss, trauma, substance use, and dual diagnosis treatments.


Jill incorporates modalities to include Cognitive Behavioral Therapy (CBT), Person Centered Therapy, EMDR, Solution Focused Therapy, as well as Cognitive Restructuring.  Her goal is to provide a safe and inviting environment to explore challenges and barriers each of her patients’ experience. She recognizes that emotional discomfort creates the feeling of being alone on an island and has the ability to encourage strength and determination to accomplish positive growth. 


Jill was born and raised around the Mason City area and is able to connect with others and encourages acceptance to accepting support for mental health and emotional health, while challenging our own internal bias. She is only able to provides appointment times on select evenings and weekends. 

Jill Kreimeyer

Amy Siefken

Amy Siefken

Amy Siefken has worked at Anastasi Counseling Services since 2004 and is the office manager. She assists clients with scheduling appointments, files claims with insurance companies, and is in charge of billing. Amy has 3 children and 4 grandchildren.

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