Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. John Brennan xhas an overall rating of 1.0.
Dr. John Brennan, MD is a Doctor primarily located in Sparta, WI. He has 46 years of experience. His specialties include Emergency Medicine and Internal Medicine. Dr. Brennan is affiliated with Mayo Clinic Health System Sparta and Franciscan Skemp Healthcare. He speaks English.
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Specialties & Expertise
Dr. John Brennan has the following 3 areas of expertise, 2 specialties and 1 board certification.
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Locations & Directions
Dr. John Brennan, MD is similar to these 3 Doctors near Sparta, WI.