Barbara O'Callaghan, N.P.

Barbara earned her Bachelor of Science in Nursing degree from Emory University in 1998.  She received her Master of Science in Nursing degree from Kennesaw State University in 2008. Prior to Suburban, Barbara worked in Oncology at Emory Crawford Long Hospital in Atlanta.

She has been a part of Suburban Hematology Oncolgy for most of her nursing carrier; first as a nurse and now as a practitioner. She has taken supplemental divinity courses and has a strong passion for being a supportive figure for her patients through their cancer journey.

Barbara is married with three daughters and one son. In her free time, she enjoys spending time with her family, particularly with her four grandsons and two granddaughters.

Now Serving 4 Gwinnett Locations:

631 Professional Drive
Suite 450
Lawrenceville, GA 30046
Phone: (770) 963-8030


3855 Pleasant Hill Road
Suite 480
Duluth, GA 30096
Phone: (770) 623-6433


1700 Tree Lane
Suite 490
Snellville, GA 30078
Phone: (770) 979-2828



2098 Teron Trace

Suites 400-500

Dacula, GA 30019

Phone: (678) 722-3940