Heartland Women’s Healthcare of Advantia, Wentzville

Dr. Sammons has provided exceptional care to women and families in the St. Charles County area since 2010. With a passion for supporting women as they navigate the balance between motherhood and professional life, she finds deep satisfaction in guiding patients through every stage of their reproductive health journey. She cherishes the long-term relationships she builds with patients, knowing that the OBGYN field allows her to be part of their lives through both the joyful and challenging moments.

A proud member of the Lake Saint Louis community, Dr. Sammons lives with her husband, son, and daughter. Outside of her practice, she enjoys hiking in local parks, knitting, playing the piano, and spending time with their family dogs Luna and Nala.

Dr. Sullivan has over 21 years of experience in the field of Gynecology and Obstetrics and Family Medicine. Her areas of expertise include minimally invasive surgery, adolescent health, and birth control management.

Dr. Sullivan is a single mom to two teenage boys and they have two Persian kittens named Mango and Kiwi. In her spare time, she enjoys cooking, trivia games, and concerts. She also enjoys traveling (especially Disney World with her family) and entertaining. If she had not become a doctor, Dr. Sullivan says she would have been a travel agent or event planner.

Heather Crawford, CNM, is a dedicated and compassionate certified nurse midwife with a deep commitment to empowering women in all stages of their healthcare journey. With 17 years of experience as a Registered Nurse—10 of which have been focused on women's health—Heather specializes in low-intervention labor and birth, including water immersion.

She earned her bachelor’s degree from San Diego State University and her master’s degree in Nurse Midwifery from Frontier Nursing University. Additionally, she is certified in Electronic Fetal Monitoring, ensuring the highest level of care for her patients.

Heather’s philosophy centers on providing personalized, respectful, and evidence-based care. She believes in fostering a supportive environment where women feel heard and valued, whether they are seeking routine gynecologic care, pregnancy support, or labor and birth assistance.

Originally from San Diego, Heather now calls O’Fallon home, where she lives with her husband, three teenage children, and two beloved dogs. In her free time, she enjoys exploring the outdoors—hiking, kayaking, and discovering new places around St. Louis. She also loves reading, listening to history podcasts and weightlifting, finding balance in both adventure and wellness.

Jane has an extensive amount of healthcare experience with 33 years as a Registered Nurse and 27 years as a Certified Nurse Midwife. She has a passion for caring and educating families and ensuring quality care. Jane loves caring for women of all ages, from the teen looking for birth control to the woman in menopause. As a Certified Nurse Midwife, she provides both obstetrical and gynecological care to patients. Her specialties include water immersion, acupuncture for chronic pain, and yoga for prenatal care.

Jane served 27 years in the US Air Force and retired as a Colonel in 2012. While on active duty, she practiced midwifery and was the top administrator for numerous obstetrical and specialty medical clinics. In addition, Jane served in several executive leadership roles in the military medical system.

Jane is the proud mother of 4 and great-grandmother of 1. Active in the Immaculate Heart of Mary Catholic Church choir, she also enjoys skiing, fishing, kayaking, camping – anything in the outdoors!