Our Therapists & Staff


Skilled, highly qualified, and trained to help

The counselors here at Colegrove Counseling Center, LLC, are highly qualified and trained to address most situations that individuals or families face. Some of the styles of therapy the counselors provide are solution-focused therapy, reality therapy, motivational interviewing, and cognitive behavioral therapy to help individuals maximize their ability to change their lives.  We believe each person and family has the ability to make positive changes in their life when new skills are implemented or old skills are brushed up on.

The qualifications and credentials of the therapists are as follows:

• LMHP: Licensed Mental Health Practitioner
• LIMHP: Licensed Independent Mental Health Practitioner
• LADC: Licensed Alcohol and Drug Counselor
• LPC: Licensed Professional Counselor
• MSW: Master of Social Work
•  LICSW: Licensed Independent Clinical Social Worker

If there is a P prior to the LMHP (i.e., PLMHP) or prior to the LADC (i.e., PLADC), that indicates that the individual has completed all requirements for licensure, however, needs to be and is supervised for an additional 2000+ hours.

The State of Nebraska Justice System requires that therapists go through extra training to become a Preferred Provider for the Nebraska Justice System.  This then allows a therapist to perform counseling and evaluations for the court system.

Jill Colegrove, LIMHP, LADC

Jill is from Columbus, however lived in the Kansas City area for about 15 years. She returned to Columbus in 2004. Jill is married, has 3 children, enjoys running and scrapbooking. She is passionate about her work and thoroughly loves the balance of work and family. Jill is the owner as well as a therapist. She is a Licensed Mental Health Practitioner (LMHP), a Licensed Drug and Alcohol Counselor (LADC), a Certified Professional Counselor (LPC) and a Licensed Independent Mental Health Practitioner (LIMHP). Jill is a preferred provider for the State of Nebraska Justice System. She received her Bachelor of Arts degree in Psychology from Ottawa University in Ottawa, Kansas. She then completed her Master of Arts degree in Counseling from Doane College in Lincoln, Nebraska. She is a member of the American Counseling Association and the Nebraska Counseling Association. Since 1994 Jill has been working in both mental health and substance abuse facilities with adolescents and adults. This experience includes working in settings of mental health institutions, long term inpatient substance abuse facilities, long term outpatient substance abuse facilities, and short term outpatient settings. She is also trained in EMDR (Eye Movement Desensitization Reprocessing). Jill is the Clinical Director for the Columbus Area LOSS team; is the chair of the Drug and Alcohol Licensing Board and chairs the Justice Behavioral Health Provider Subcommittee.

Mary Phillips, LMHP, LIMHP, LPC

Mary is a Licensed Independent Mental Health Practitioner (LIMHP) and a Preferred Provider with the State of Nebraska Justice System. She completed a Bachelor of Science degree in Rural Sociology from South Dakota State University and a Master’s degree in Counseling Psychology with a Community Agency specialty from the University of South Dakota (USD) in Vermillion. Mary was a teaching and research assistant in the Department of Counseling Psychology there and taught graduate student counseling skills and parent education courses. She also developed and taught courses in parenting after divorce. She has over 20 years of counseling experience and has worked with clients in residential, educational, and outpatient settings treating mood disorders, impacts of domestic abuse, substance abuse, parenting issues, and severe and persistent mental health problems. Mary completed specialized training in Eye Movement Desensitization Reprocessing (EMDR) Therapy, including EMDR for pain management with Dr. Mark Grant, an internationally-recognized EMDR expert. She has also completed specialized training in and utilizes Dialectical Behavioral Therapy (DBT) to reduce symptoms of anxiety, depression, and Borderline Personality Disorder and to assist clients in preparing for EMDR treatment. She currently works with adults and adolescents treating anxiety, depression, and other mood disorders, impacts of domestic abuse, alcohol and drug evaluations and treatment, and couple’s counseling. Mary also teaches Introduction to DBT Skills classes.

Shelli Cornwell, PLMHP, PLADC

Shelli is a provisionally licensed mental health practitioner and a provisionally licensed alcohol and drug counselor; she is also a Preferred Provider with the State of Nebraska Justice System. Shelli received her Bachelors of Science degree in Human Services Counseling at Wayne State College and her Masters of Science degree in Clinical Counseling from Bellevue University. Shelli has also completed specialized training in Eye Movement Desensitization Reprocessing (EMDR) Therapy which has helped millions of people decrease or alleviate many types of psychological stress, including Post Traumatic Stress Disorder (PTSD). Shelli has worked in behavioral health, addictions, and the health care fields since 2001. She has experience in working with clients in short-term residential treatment programs, outpatient settings, and in-home settings.

Brittany Childress

Brittany is a provisionally licensed clinical social worker. She received her Bachelor of Arts degree in Psychology and Sociology from Midland University in 2016 and her Master of Social Work degree from Simmons College in 2018. Brittany has experience working with at risk youth, substance use, and severe and persistent mental health in outpatient, inpatient, residential, and in-home settings. She is looking forward to continuing to gain experience and training to better serve her clients.

Rachel Steffen, LICSW

Rachel is a Licensed Independent Clinical Social Worker (LICSW). Rachel attended Hastings College for four years where she earned a Bachelor’s degree in English Literature and Psychology. She graduated with her Master's from the Nebraska University of Omaha Grace Abbott School of Social Work in 2016. Rachel is a preferred provider for the State of Nebraska Justice System. Rachel has found her niche in working with young and old clients who have endured trauma of all kind. In working with traumatized clients, Rachel discovered the need to explore alternatives to the typical conventions of therapy so she has begun training in the field of neurofeedback. Currently, she is starting off with the pIR-HEG (Passive-Infrared Hemoencephalography) system, which is an evidenced-based practice used to treat anxiety, depression, attention, and trauma symptoms, although it was originally used to treat clients who suffer from debilitating migraines.

Jennifer Alexander, PLMHP

Jennifer is a provisionally licensed mental health provider. She received her Master of Clinical Counseling from the University of Bellevue in 2017. Jennifer works with younger clients between the ages of 3 to 15. She is a Preferred Provider with the Nebraska Justice System. Jennifer has 10 plus years experience in Early Childhood Education and has attended several Play Therapy Trainings. Administering drug and alcohol evaluations and facilitating parenting and drug and alcohol education classes are also services Jennifer provides.

Jill Hunzeker, LMHP, LIMHP, LPC

Jill is originally from Columbus but lived in Lincoln and Kansas City for ten years. She moved back to Columbus in 2004, is married and has two kids. She loves to learn, is drawn to art and decorating and enjoys biking and walking. She is a Licensed Mental Health Practitioner (LMHP), a Licensed Independent Mental Health Practitioner (LIMHP) and a Licensed Professional Counselor (LPC). Jill is also a Preferred Provider with the State of Nebraska Justice System. Jill obtained her Bachelors Degree in Psychology from the University of Nebraska at Lincoln and her Master of Arts in Community Counseling from the University of Nebraska at Omaha. Jill's experience includes working with severe and persistent mental illness; running dialectical behavior groups; doing crisis work; providing community support; assisting with residential treatment; providing individual, family and group counseling; as well as in-home work and on-call services. She has also worked at a residential treatment facility where she counseled children ages 5-12. Jill was fortunate to be able to study under an Art Therapist and an MSW that was well-known for her work with child abuse. She currently works full-time for the State of Nebraska at Voc Rehab. She gets to fulfill her passion for counseling by working part-time at Colegrove Counseling L.L.C. . As a counselor she enjoys providing therapy to individuals, couples and families.

Jenny Sylvester

Jenny is a lifelong Platte County resident, growing up around Creston and Humphrey and currently living in Columbus. She is married, has 2 children, and loves to go fishing. Jenny has 17 ½ years experience in healthcare working as a CNA and Medication Aide after receiving the Certified Nursing Assistant certificate and Medication Aide license from Central Community College. She also has four years of experience as an elementary school secretary and is still able to substitute once in awhile.

Colegrove Counseling Center Nebraska


Chloe is a purebred Blue Great Dane. She was born on July 14, 2018. Chloe is a puppy and has lots of energy but loves people. She will be around from time to time to provide smiles, laughter, and comfort. She has been through training to work on her manners, however Chloe is not always the best about minding them. She mostly struggles with wanting to run fast, playing with her mouth, putting her paws up in the air and sitting on your lap or in the chair next to you. Despite this, she thoroughly loves the attention and all the people. Chloe does well with positive reinforcement, such as telling her good girl when she sits and then rubbing her head or scratching behind her ears.

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Bella is a beautiful lab-mix who joined the team on April 16, 2018. Bella has completed her Basic and Advanced Obedience Training and is hoping to continue her training so that she is able to further work with her person, Shelli Cornwell, in many therapeutic environments. When you see Bella in the office, there are some things to be mindful of with Bella to assist her in remembering her training. Don’t give Bella any food!! This way, she’ll remember not to take food from others when they are not looking! Bella also doesn’t shake hands/paws with others because some people’s skin is more fragile, and this is a good reminder for her to just sit and look pretty to get her attention. Here is some knowledge Bella would like to share, did you know Bella in Spanish means “beauty”? She is that! Bella loves her ears scratched, her belly rubbed, and being talked to. When she comes to the office, you can always find her working along side her person, Shelli. If you see her in the waiting room, she’ll say she is there to greet people who come to Colegrove Counseling, LLC, but those that work with her know better…she looking for attention!!