Unlike conventional medicine, which focuses on attempting to treat disease once it occurs, the services offered at OM Integrative Infusion Center in Sioux Center emphasizes the importance of improving your health in an effort to reduce the risk of pain and illness in the first place.  Given the option, most people would prefer to be healthy and avoid illness if possible, and orthomolecular integrative infusion care can help those people achieve their health and wellness goals. For those patients who may already be in pain or have a suppressed immune system we offer relief for many types of conditions ranging from chronic pain, gastrointestinal issues and poor immune response.  

At OM Integrative Infusion Center we can assist patients with the rediscovery of health and wellness that one has lost over time and should be able to experience those feelings again. For others, this journey may offer a new sense of balance and wellness that one has never before experienced.  If you want to start living every day feeling your best, call us at 712-722-0786 to schedule an appointment!

Here at OM Integrative we are interested in what direction your overall health and well being are going.  Are you trending up or down?  Our goal is to help you through four models of care using nutrition as our basis where we can do this orally, intravenously, or detoxification of the colon as well as pulse magnetic therapy. These are extremely powerful resources to help your immune system trend upwards.

It is important to note that we are dedicated to managing chronic conditions versus cure that moves each individual towards a better quality of life with the energy that they deserve to have in life.

People around the world are recognizing the benefit of seeking natural, personalized, and individualized care versus traditional medicine; one that will help them achieve and maintain optimal health without requiring invasive treatments such as surgery. Please take the time to meet Dr. Armstrong and Ann Ter Horst, ARNP, care professionals who are dedicated to helping you achieve your wellness objectives. 


For such time as this, a dynamic team of health care professionals has been divinely assembled to serve others in breaking free of the world of disease.  We will work to restore the foundation of health at the cellular level, through nutritioin, detoxification, rejuvenation of body, mind and spirit by meeting each individual we serve where they are on their life journey

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About Us

FOR MORE INFORMATION   +1.712.722.0786

Ann Ter Horst

Advanced Registered Nurse Practitioner (ARNP)

For Ann Ter Horst, serving her community as an Advanced Registered Nurse Practitioner (ARNP), has been a lifelong dream, that was realized.  Ann has had the privilege of walking beside individuals and families throughout their healthy journey.  Her philosophy lies in viewing this relationship as a long term commitment or marriage. Each must give at least 50% to make it work. If either party neglects their duties in the relationship, both will fail.

Ann grew up in NW Iowa. Attended St. Luke's and Briar Cliff in undergraduate studies, and South Dakota State University for graduate level.  She received additional training in IV nutrition as well as completed the Ozone Therapy Training & Certification Course Ozone Therapy, which fascinates her daily.   "The human body is resilient to a point when given the nutrients the cells need for optimum function.  Amazing how God made us!"   


In her personal time, Ann enjoys reading, going for walks with her

dog, and most importantly, spending time with her grandchildren (sometimes, even their parents).    


Partnering with you to provide person-centered care that supports wholistic health, spiritually, emotionally, and physically in the quest for optimal quality of life and wellness​.

Doctor of Chiropractic DC
​Owner of OM Integrative

For Dr. Armstrong, being a Chiropractor and Integrative Caregiver is about looking at the whole person, one patient at a time. Integrative Care is exciting work and it’s different every day, but he loves to help people and see their bodies respond to care. Above all, Dr. Armstrong strives to restore each person’s health with the treatment that is right for them.