Dr. Margaret Brennan is a Doctor in Saint Louis 63136, St Louis MO and…read more has an experience of 2026 years in this field. Dr. Margaret Brennan practices at Mercy Clinic Primary Care-Ferguson in Saint Louis 63136, St Louis MO.
Some of the services provided by the doctor are: Muscle Cramping,Electrocardiogram (EKG),Scrotal Pain,Dehydration and Nausea etc.read less