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975 East Third Street
Chattanooga, TN 37403
Children's Hospital at Erlanger Erlanger Baroness Campus Erlanger Bledsoe Campus Erlanger East Campus Erlanger North Campus UT Erlanger Physicians Group

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Erlanger South Family Medicine

Christopher Haddock, MD John D. (Chip) Harris, MD Sonja Kelleher, MD
Christopher Haddock , MD John D. "Chip" Harris, Jr., MD Sonja Kelleher, MD


The physicians of Erlanger South Family Medicine, Dr. “Chip” Harris, Dr. Chris Haddock, and Dr. Sonja Kelleher are deeply rooted in the community they serve. Drs. Harris and Haddock were born and raised and have family ties in the greater Chattanooga area. These talented physicians are dedicated to serving the healthcare needs of North Georgia residents. “Not only are we attentive to our patients’ immediate healthcare needs, but we also focus on preventive long-term care,” says Dr. Haddock. 

“We believe in building strong relationships by providing a high level of care in a compassionate and an accepting environment,” adds Dr. Harris.

Serving all generations, the family medicine physicians at Erlanger South Family Medicine provide comprehensive care for every family member. Services range from physical exams to acute care and treatment of chronic illnesses. 

The doctors are board-certified by the American Board of Family Medicine. They also serve as Clinical Instructors of Family Medicine at the UT College of Medicine—Chattanooga Unit, based at Erlanger.

Hospitalist Program

Erlanger South physicians use the Erlanger hospitalist program (physicians who treat only hospitalized patients) to minimize time away from the office for hospital rounds. This helps the doctors provide quality and timely service to patients at the office while ensuring patients receive the highest level of care while hospitalized.

Practice Philosophy

“Very simply, we treat patients as we’d like to be treated when we’re the patients, and that includes seeing—really seeing—the entire person, not just the illness.”

Christopher G. Haddock, M.D.

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Erlanger South Family Medicine
60 Erlanger South Drive
Suite A
Ringgold, GA 30736


Monday – Friday
8:30 a.m. – 4:30 p.m.

Leslie Bryant, Practice Manager
Sandra Orr, Patient Service Rep
Courtney Tallent, CMA/Patient Service Rep
Sandra Trzeciak, LPN-C
Amy Austin, LPN
Jerrie Smith, MA
Susan Mitchell, RT

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