Casie Leightner, MD, MPH, DipABLM
Medical Clinic
Family Medicine Physician & Obstetrician
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At Sioux Center Health, our Fertility Care services offer a natural, restorative approach to women’s reproductive health through NaProTechnology (Natural Procreative Technology). Using the Creighton Model FertilityCare™ System, we help women understand their cycles and address concerns such as infertility, hormone imbalances, ovarian cysts, and more — while supporting the body’s natural function.
Dr. Leightner, a Family Medicine and OB Physician at Sioux Center Health, is a certified Creighton Model provider. She offers compassionate, individualized care to support you through every stage of your reproductive journey.
Discover a Natural Approach to Women's Reproductive Health with NaProTechnology
NaProTechnology—short for Natural Procreative Technology—is a cutting-edge, restorative approach to women’s reproductive health that works with the natural rhythms of a woman’s body, not against them.
At the heart of NaProTechnology is the Creighton Model FertilityCare™ System, a powerful charting method that helps women track their menstrual cycles with precision. Whether you're hoping to achieve or avoid pregnancy, this system offers valuable insights into your unique fertility patterns.
More than just charting, NaProTechnology uses this data to guide personalized hormone testing around ovulation and the post-ovulatory phase. This allows for targeted, evidence-based treatment of a wide range of reproductive concerns, including:
Unlike conventional approaches that may suppress symptoms, NaPro works to restore your body’s natural reproductive function. It empowers women with knowledge—offering a window into their own fertility and health, and the confidence to make informed choices for their families.
Dr. Leightner, a Family Medicine and OB Physician at Sioux Center Health, is a certified NaProTechnology medical consultant. Using the Creighton Model FertilityCare™ System as a diagnostic tool, she provides compassionate, individualized care for women navigating fertility challenges, cycle irregularities, and hormonal issues at every stage of reproductive life.
To learn more or begin charting with the Creighton Model FertilityCare System, contact the Sioux Center Health Medical Clinic today and schedule your visit.
Medical Clinic
Family Medicine Physician & Obstetrician
Learn More
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