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Katie Cairn O'Reilly, MD

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ReitPath Pathology

Contact Info

201 Seton Parkway
Round Rock, TX 78665

Phone: (512) 324-4000
Fax: (512) 324-4662


Dr. O’Reilly received her medical degree from the Louisiana State University Health Sciences Center in New Orleans, LA. She completed a residency in anatomic and clinical pathology at Emory University in Atlanta, GA, where she served as chief resident during the 2006-2007 academic year. Dr. O’Reilly completed a Surgical Pathology Fellowship and Cytopathology Fellowship at Stanford University Hospital in Stanford, CA. She is board certified in Anatomic and Clinical Pathology as well as Cytopathology. 

Dr. O’Reilly is a member of several professional organizations including College of American Pathologists, American Society of Cytopathology, American Society for Clinical Pathologists, United States and Canadian Academy of Pathology, and the Texas Medical Association. Dr. O’Reilly currently serves as laboratory medical director for point-of care testing at Seton Medical Center-Hays.


Views on political or religious issues expressed by medical staff may not necessarily represent the views of the Seton Healthcare Family.
image Seton is proud to have four hospitals – the only hospitals in Central Texas - that have earned the Magnet designation, the highest award for nursing excellence given by the American Nurses Association.