Psychiatric Services & Medication Management

Our experienced nurse practitioners take time with each client to understand their unique strengths, challenges, and needs. They provide comprehensive evaluation of psychiatric issues from a holistic approach. This can include but is not limited to: Integrative Medicine, Natural Therapies, Mind-Body Therapies, Essential Oils, etc. A collaborative model is used to identify therapeutic approaches to best meet the needs of the individual.

Our providers also prescribe prescription grade supplements as an alternative therapy, or to augment other medications to promote optimal wellness.

Psychiatric Team

Grant Gregory
DNP, RN, PHN, APRN, CNP, PMHNP-BC (Board Certified Psychiatric Mental Health Nurse Practitioner)

Location(s): Savage


Grant Gregory is a board certified Psychiatric-Mental Health Nurse Practitioner and received his Doctor of Nursing Practice from the University of Minnesota in 2014. He has enjoyed working in the behavioral health field since 2006. He has worked and trained in a variety of settings including chemical dependency facilities, adult/child/adolescent inpatient hospitals, outpatient and forensic settings, and in residential treatment of severe and persistent mental illnesses. Most of his work has been in the inpatient setting treating adults with a variety of mental health issues. 

Grant provides comprehensive mental health treatment including diagnostic assessments and medication management for clients. He uses the mind/body connection to help educate and provide clients with the tools and skills needed to improve their emotional, physical, and mental health. He enjoys working with diverse individuals and helps treat those with various mental illnesses with collaborative and holistic approaches.

Michael Omomo     
APRN, CNP, PMHNP-BC (Board Certified Psychiatric Mental Health Nurse Practitioner)

Location(s): Savage


Michael Omomo is a board certified psychiatric mental health nurse practitioner that is passionate about mental health. He is trained and qualified to diagnose and treat various psychiatric disorders across the lifespan. Michael’s focus is on providing quality, empathetic, and comprehensive mental health services to individuals across the lifespan. He believes in an integrated approach to care of individuals with mental health. Michael is empathetic, a good listener, and is willing give an honest diagnosis and treatment plan irrespective of race, gender, or sexual orientation.

Michael’s goal is to help individuals and families live a joyful and productive lifestyle irrespective of their mental illness diagnosis. The types of treatments promoted include holistic healing, psychosocial interventions, psychotherapy, and medication management. Michael looks forward to gaining your trust so you and your family can live a productive lifestyle.

Jessica Wettlin
Jessica Wettlin, MSN, APRN, CNP, PMHNP-BC (Board Certified Psychiatric Mental Health Nurse Practitioner)

Location(s): Telehealth/Savage


Jessica has spent over 18 years serving both adolescent and adult clients, and is passionate about helping them navigate their mental health challenges. She started her career in mental health with a Bachelor's degree in Criminal Justice from Metropolitan State University and has since served as a charge nurse in an inpatient psychiatric hospital and taught mental health to nursing students at the University level.

Olivia Grayson

MSN, APRN, CNP, PMHNP-BC (Board Certified Psychiatric Mental Health Nurse Practitioner)

Location(s): Savage


Olivia Grayson is board certified Psychiatric Mental Health Nurse Practitioner. She holds a Master of Science in Nursing (MSN) from Metropolitan State University and a Post-Master’s Psychiatric Mental Health Nurse Practitioner Certificate from the University of Cincinnati.

With a passion for mental health and a commitment to patient care, Olivia strives to provide personalized and holistic treatment plans that promote well-being and recovery. She is dedicated to making a positive impact on the lives of her patients and is driven by the belief that every individual deserves access to high-quality mental health care.

Melissa McNellis
Registered Nurse

Location(s): Savage


Melissa received her Bachelors degree in nursing from the College of St Catherine. She has over 16 years of psychiatric nursing experience working with clients across the lifespan. Melissa enjoys working closely with the psychiatric providers to get a better understanding of each client and their treatment needs.

Kris Schmisek
Registered Nurse

Location(s): Savage


GeneSight Testing

River Valley and their nursing staff now offer GeneSight testing. GeneSight Psychotropic is a pharmacogenomic test which means that it analyzes how your genes may affect medication outcomes. The GeneSight test analyzes clinically important genetic variations in your DNA. Results can inform your prescriber about how you may break down or respond to certain medications commonly prescribed for adults to treat depression, anxiety and mood disorders.

Ask your provider if you qualify for this testing. More information available at

River Valley's "Cue to be Well"

River Valley's "Cue to Be Well" is a free monthly newsletter, curated by psychologists and other wellness professionals, containing wellness strategies, healthy recipes, clinic updates, special offers, and the like. We appreciate everyone here in this exclusive circle and would like to give back in any way we can.

Check out the archive to enjoy wellness strategies and recipes right now!

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