New Patients Welcome

Thank you for choosing McCrary-Rost Clinic and Stewart Memorial Community Hospital for your prenatal care. The birth of a child is a treasured memory and we are honored you have chosen our healthcare team to be a part of your special experience. Our team of physicians, physician assistants and nurse practitioners are dedicated to working together for you and your baby. We are committed to:

  • Providing a devoted, experienced healthcare team to take care of you and care for your baby before, during and after delivery.
  • Offering educational childbirth classes to help prepare you for a positive birth experience.
  • Beautiful labor and delivery suites with a calming environment, whirlpool bath, extra sleep accommodations, and room service meals prepared fresh when you are ready to eat.
  • Providing comprehensive and sophisticated services you expect with a personal touch.

At McCrary-Rost Clinic we use a team approach to caring for you and your baby. At the beginning of your pregnancy your primary physician will oversee your care. Throughout your prenatal care you may meet both of our obstetric physicians (see photos below) who work together closely to deliver safe care to you and your baby. 

Thank you for entrusting us with your care during this special time.

If you have any questions, please call us at your convenience at 1-800-560-7500. We are happy to answer any questions for you and we look forward to welcoming your tiny miracle.


Susan Hornback, D.O.
Board Certified Family Physician

Dr. Susan Hornback offers a full range of family care. This includes Obstetrics, Pediatrics, Women’s Care and Adult Medicine. She is available for OB and Family Care appointments four days a week at Lake City. Dr. Hornback, a Des Moines native, earned her Doctor of Osteopathic Medicine degree from Des Moines University Osteopathic Medical Center. She completed her residency at Iowa Lutheran Family Medicine in Des Moines. She is a member of the American Academy of Family Physicians and the American Medical Association. In 2005, Dr. Hornback was awarded the Dr. Greg Smith Award for compassion, competence and bedside manner. When Dr. Hornback is not caring for patients, she spends time with her family.


Derek Duncan, D.O.
Board Certified Family Physician

Dr. Derek Duncan offers a full spectrum of family care including Obstetrics, Pediatrics, and Adult Medicine. Dr. Duncan also focuses on family planning and infertility. He is available for OB & Family Care Appointments five days a week in Lake City. He’s a graduate of Drake University, Des Moines University Osteopathic Medical Center and Via Christi Family Medicine Residency Program. He is a member of the American Academy of Family Physicians, and the American Medical Association. Dr. Duncan is a avid Hawkeye fan, enjoys golfing and spending time with his family.


Julia Richardson, MD
Board Certified Family Physician

Lake City Native Julia Richardson, MD, offers family medicine and obstetrics services at McCrary-Rost Clinics in Lake City and Rockwell City. Interestingly, she was born right here at SMCH! Dr. Richardson became interested in medical science at a young age, being the daughter of veterinarians. She completed her Bachelor’s Degree at Iowa State University, and earned her Medical Degree from the University of Iowa, making her a proud CyHawk. Before coming to SMCH, her family lived in Nebraska as she completed her medical residency. Dr. Richardson is passionate about obstetrics, lactation support, pediatrics, and women's health. Together with her husband Michael, Dr. Richardson has a son, Joshua, who has Down syndrome, and twin daughters, Charlotte and Grace. Dr. Richardson enjoys spending her free time with her family. She says, "To be a part of serving the great need for rural healthcare in my own hometown is such a privilege."