Meet the Provider Team

Gloria Jean Bannasch

Founder, Co-Owner, Team Leader of GJB Health Services
  • Master of Education
  • Professional Counselor
  • Nationally Certified Counselor
  • Board Certified Executive Coach
  • Board Certified Telemental Health Provider
  • Certified Gottman Therapist

As Wisconsin’s first Certified Gottman Therapist, working with couples is Gloria’s passion. She also presents workshops designed by the Gottman Institute: The Art and Science of Love for Couples, The Art of Science and Love 2, The Seven Principles for Making Marriage Work, and Bringing Baby Home to better serve the needs of couples. Please visit the following link for more information regarding couples therapy, couples workshops and to register,

Gloria has worked in mental health and alcohol treatment programs in a variety of settings. As a trained interventionist, she helps the friends and family members of alcoholics and addicts to “hit bottom” and get the treatment they need.

In her spare time, Gloria enjoys creating Zentangle inspired art. Many of her pieces are on display in our Appleton office and in the New Client Handbook.

Gloria can be reached directly at, .

Gerald J. Bannasch


Dr. Bannasch provides both psychiatric and neurologic services to his patients. New clients can make appointments with less than a month’s wait time.

He is board certified in adult neurology, general psychiatry, vascular neurology, behavioral neurology, neuropsychiatry, and is a fellow in the American Clinical Neurophysiological Society.

“My philosophy for treating patients is evaluating for any medical problems which could be causing, or exacerbating, potential psychiatric issues. Time-limited medications may be prescribed along with psychotherapy and life-style changes to empower patients.”

Doctor Bannasch can be reached directly at,

Kathleen Mueske


“I believe that HOPE is the true essence of an enriched life and, that as a professional counselor, I am called to restore or enhance hope in challenging situations.”

Kathleen seeks to partner with individuals who are interested in improving the quality of their lives, their relationships and their self-compassion.

Kathleen is interested in providing a safe and affirming environment that creates opportunities for healing and improved health and wellbeing. Clinical areas of interest are Grief and Complicated bereavement, PTSD, LGBTQ+ Issues, Spiritual Issues, Depression, Anxiety, Relationship Issues and Low Self-Esteem.

Clinical Modalities are Brief Therapy, CBT, Mindfulness, DBT, Person Centered, Feminist Therapy, Motivational Interviewing and Solution Focused therapy.

Populations served are children and parents, teens, college students and other young adults, adults, couples, veterans, artists, victims/survivors of trauma/abuse, professional caregivers, individuals with chronic health, and mental health conditions.

Kathleen can be reached directly at,

Ben Cheney


I am a Licensed Clinical Social Worker with authorization to treat alcohol and/or drug abuse and have been in the clinical social work arena since2001. Working with individuals who struggle with anxiety, depression, trauma (such as PTSD), mood issues, and relationships are other areas of experience.

Having worked in a medical emergency room, psychiatric hospital, county services and a sub oxone clinic, has given me experience helping my clients to deal with trauma of many different kinds.

My goal is to help people achieve a better life for themselves and for those around them through a team effort. I use Trauma Informed Care, Cognitive Behavioral Therapy, Strength Based, and SolutionFocused Therapy.

Continually attending seminars and researching helps me to find new approaches and ideas to help my clients and to give them a solid footing from which to build.

Ben can be reached directly at,

Jillian Rotzenberg


Jillian was the first member of the Support Team at GJB Health Services. After many years of education and seeing clients at GJB Health Service as a Counselor In-Training, Jillian is fully licensed and is accepting teens and adults. Jillian has completed Levels 1 and 2 of Gottman Method Training and has had years of experience working with couples. She also has specialized training in working with clients who struggle with alcohol or other substances.

In the 8 years that Jillian has worked for the practice, she has performed almost every role and is a wonderful point of contact for questions of all types. Jillian has a special affinity for working with families of the brave men and women who have served in the US Armed Forces.

Jillian will also offer Virtual Group therapy as a result of COVID-19. Please see link for additional information.

Jillian can be reached directly at

Korah Petrasko


Korah competed her master’s program at the end of 2017 and is currently finishing her 3000-hour requirement to become a Licensed Professional Counselor. Working with children and adolescents is Korah’s happy place; especially those who are on the Autism Spectrum. Korah works with adults in addition to working with children

Korah gives freely of her time to advocate for mental health in the community. New clients are welcome.

Korah will also offer Virtual Group therapy as a result of COVID-19. Please see link for additional information.

Korah can be reached directly at, 

Tamara Riel

Ph.D. Intern

Tammy is performing neuropsychological and psychological testing at GJB Health Services, as a way of logging hours to obtain her Ph.D. in psychology.

Tammy provides therapy for teens and adults, charging on a sliding scale. Once Tammy completes the internship and practicum, she will be eligible to sit for the psychology boards. Completing her dissertation will be the final step to becoming a fully licensed psychologist.

Tammy can be directly at,

Michael Frost


Michael is a Clinical Substance Abuse Counselor who is passionate about, and fascinated by, recovery. He is strength-based and person-centered and believes in the worth of every person. Michael is interested in people’s stories and listens closely for beliefs that may drive behavior.

Michael embraces change and personal growth as lifelong processes and encourages clients to ask themselves, “Who am I?” and “What do I want?”. He enjoys helping his clients develop awareness, the ability to ask for help and the willingness to identify, allow and express feelings.

Michael can be reached directly at,

Trever Allcock


Trever specializes in mental health, relationship building, and emotional development. he has a special affinity for working with students who feel like they “just don’t fit in”. As a resident assistant and group leader, he has watched young people go through times of great struggle and come out on the other side; equipped with new tools and a clearer sense of their values and who they really are in the world. Trever helps teens and young adults to discover what is working well in their lives and facilitates their discovery of what behaviors are no longer serving them well.

Trever works after 5:30p at GJB Health Services and often has weekend hours. He charges on a sliding scale and accepts new clients.

He will also offer Virtual Group therapy as a result of COVID-19. Please see link for additional information.

Trever can be reached directly at,

Kari Steffes


Kari graduated from Bellin College of Nursing in 2008 and has worked with patients throughout the lifespan in a variety of settings. In addition to her role as our staff nurse, she is able to provide therapy services to clients of all ages at no charge as she nears completion of her master’s degree in psychiatric mental health nursing as a future PMHNP (psychiatric mental health nurse practitioner).

“I believe every individual’s physical and mental health are impacted by biological, social, psychological and spiritual aspects of their lives. I am committed to excellence in patient care and strive to uncover the “root” cause(s) of illness to optimize the best outcomes for every patient, every time”.

Kari can be reached directly at, 

Meet the Support Staff

Melissa Heilman

Office Manager

Melissa supervises the support staff from the front office to the medical revenue staff. Her goal is to provide excellent customer service to every patient/client and make sure the practice providers have what they need at all times.

Melissa can be reached directly if need be at, 

Alexis DeZee

Student and Member of the "GJB Family"

At times Alexis is with us and far too often, she is not. The warmth of her smile is immediately recognized when Alexis is in the office.
Despite GJB’s best efforts to convince Alexis otherwise, she returned to college. Expect to see her in many different roles often at GJB.

Priscilla Cochran & Marissa Lallier

Front Office Staff

These ladies are responsible for all patient/client needs from completing pre-registration, schedule appointments, process requests for records, take payments, and address all phone calls. They work tirelessly to make sure that everything is ready and in working order for patients, clients, and providers.

The front office ladies can be reached directly at, 

Jessica Kimpel

Billing and Accounts

Jessica oversees all insurance information that is processed as well as updates and files claims for each appointment. She verifies coverage benefits as well as processes preauthorization for appointments and neuropsychological testing.

Jessica further brings experience and training as an Accounts Receivable Specialist and her focus is to keep all accounts current.

Jessica can be reached directly at, 

Team Dogs


Valley, is Korah Petrasko’s support dog who provides emotional support to clients and staff alike. She is a rescue dog who loves to go to work and make people smile!


Shaiyene is owned and trained by Kathleen Mueske. Shaiyene’s job is to calm and comfort the clients with whom Kathleen works.