HomeSpecialties Medical Specialties Columbia Gastroenterology Associates


Walter J. Bristow, MD

Jorge L. Galan, DO

Edward E. Kimbrough, MD

Anthony D. Lowman, MD

Georges T. Postic, MD

S. Marsh Willis, MD

About our practice

At Columbia Gastroenterology Associates in Columbia, South Carolina, our highly respected group of board certified gastroenterologists has been caring for patients since 1979. Serving Columbia, Lexington and the greater Midlands region of South Carolina, we treat patients in need of treatment for a wide range of gastrointestinal disorders.

Our services

We treat a full range of gastrointestinal conditions including:

  • Gastroesophageal reflux disease (GERD)
  • Ulcer disease
  • Inflammatory bowel disease
  • Pancreatic and bilary disease
  • All types of liver disorders

With extensive training from some of the most prestigious centers in the country, we perform screening and therapeutic colonoscopy, endoscopy and advanced procedures including:

  • Balloon enterscopy of the small bowel
  • Therapeutic ERCP
  • Cholangioscopy

About Palmetto Health-USC Medical Group

We are proud to be part of Palmetto Health-USC Medical Group, which includes caring, compassionate health care professionals who are highly trained to meet your medical needs in Columbia, Lexington and across the greater Midlands region of South Carolina.

Providing excellent medical care in comfortable office environments, our network team of physicians, advanced care providers, nurses and staff is prepared to answer any questions you have. We provide comprehensive medical care for short-term needs like annual physicals as well as ongoing management of chronic diseases. Prevention is a big part of your overall care plan. Should additional, focused medical treatment ever be needed, our doctors will refer you to a specialist and stay involved in your care. Only at Palmetto Health-USC Medical Group will you find the extensive level of expertise available from a wide variety of specialists.

Our affiliate system

We are building one organization with affiliates in two regions. Our parent company, now known as Prisma Health, supports both affiliates with overall direction and leadership as we continue to align. We will soon share one brand across the entire organization to better reflect this. Palmetto Health-USC Medical Group will be rebranded in late 2019 and will continue to operate as a joint venture between the Midlands affiliate and the USC School of Medicine.

Learn More
We are becoming Prisma Health-USC Medical Group