Meet Our Counselors

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Timothy Griem, LISW
Clinical Manager 

I am a licensed independent social worker. I have been providing mental health therapy to families, couples, adolescents, older persons, and children for over twenty years. I love what I do. I have met people in therapy who have endured much and accomplished some amazing things. I like seeing the talent and abilities in people I meet with. I enjoy creating a relaxed atmosphere for clients where we just kick back and talk about both what is going well and what they would like to have different. My office is unique in that I have many puzzles and drawings on the walls. I tend to have successful outcomes in working with children on the Autism Spectrum. The best part about being a practicing clinician is when I have gotten to know and indirectly be a part of a client's life periodically over a span of many years; somewhat like a family doctor does. Perhaps our paths will cross?

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Allethina Harker, LISW

Allethina is an LISW with over 30 years of experience. She works primarily with adults, including older adults and has experience with those struggling with both mental health issues and substance abuse.


Kellie Harrenstein

Kellie graduated with her BA in Social Work and went on to obtain her Master’s Degree in Social Work from UNI. Kellie has worked extensively with children and families to enhance parenting skills, cope with mental health concerns, and heal from substance abuse issues. Kellie joined the team at Horizons as a Family Support Worker in 2014 and began work as a Clinical Therapist in 2015. Kellie enjoys working with children and adults suffering from anxiety, depression, and trauma. Kellie enjoys the positive environment that Horizons provides. In her spare time Kellie likes spending time with her children and also loves her Mini Australian Shepard pups.


Melinda Crane

Melinda is a marriage and family therapist and certified alcohol and drug counselor. She assists clients experiencing addiction, depression, anxiety, relationship issues, difficulty with life transitions, personality disorders, significant loss, and trauma. Her passion is working with couples and families, and helping you find unique solutions to meet your needs. Change is possible and I'm committed to providing a safe environment for you to grow.