Mercy Fertility Care - South

10010 Kennerly Road
St. Louis, MO 63128
Services are provided by Mercy Hospital South Learn more »
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Mercy provides fertility care services using the Creighton Model System to help couples avoid or achieve pregnancy naturally, without chemicals or devices, and as a tool to help in the diagnosis and treatment of many gynecologic abnormalities. 

Two Mercy Clinic physicians who work closely with the program are trained in Natural Procreative Technology, or NaProTechnology, which monitors and maintains a woman's reproductive and gynecological health. They are infertility specialist Gavin Puthoff, MD, of Mercy Clinic Fertility Care Services – Medical Tower B and obstetrician/gynecologist Richard Brennan, MD, of Mercy Clinic OB/GYN Southfork

Services will be provided by fertility care practitioner Erin Herdler, FCP. The staff also includes K. Diane Daly, RN, CFCE, manager of fertility care services at Mercy. 

Diane Daly has worked in fertility care services at Mercy for 42 years. She is a co-founder of the Creighton Model System and a co-founder of the Department of Fertility Care Services at Mercy Hospital. She said the program often is regarded as a means of natural family planning and helpful for couples dealing with infertility. In addition, nearly 50 percent of its patients are treated for health issues, including premenstrual syndrome (PMS), ovarian cysts and endometriosis. 

The program includes an introductory session, followed by a series of private follow-ups with a fertility care practitioner.

Our Providers

Richard X. Brennan, MD, Mercy
Obstetrics and Gynecology
Mercy Clinic
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