As the largest independent gastroenterology practice in the Lowcountry, Charleston GI has established a higher standard of caring. Our gastroenterologist specialist and medical staff are dedicated to providing the very best patient experience – and with quality, comprehensive care as our goal, Charleston GI also operates nationally certified and state-licensed endoscopy centers in the Charleston area. Charleston GI offers expert medical services when inquiring for a trusted gastroenterologist near you.

Jeffrey M. Basile, MD
GASTROENTEROLOGY & HEPATOLOGY
Member of Charleston GI since 2015
INTERNSHIP
University of Virginia (UVA) Health System (Internal Medicine), Charlottesville, Virginia
RESIDENCY
University of Virginia (UVA) Health System (Internal Medicine), Charlottesville, Virginia
FELLOWSHIP
Duke University Medical Center (Gastroenterology), Durham, NC
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- General Gastroenterology
- Inflammatory Bowel Disease
- Hepatology
EDUCATION
- Wesleyan University, Middletown, CT, Neuroscience & Behavior, Psychology
- University of New South Wales (UNSW), Sydney, Australia (Study Abroad)
- MD: Medical University of South Carolina (MUSC), Charleston, SC
ADDITIONAL TRAINING
- University of Chicago Medical Center, Department of Gastroenterology (Crohn’s and Colitis Foundation of America ((CCFA)) National Visiting Fellow Award Recipient)
- University of Virginia, Graduate Medical Education, Certificate in Public Health Sciences, Clinical Research Track

Theodore G. Gourdin, MD
GASTROENTEROLOGY
Member of Charleston GI since 1991
INTERNSHIP
Richland Memorial Hospital, Columbia, SC (Internal Medicine)
RESIDENCY
Richland Memorial Hospital Columbia, SC (Internal Medicine)
FELLOWSHIP
- Boston City Hospital/ University Hospital
- Boston University School of Medicine Boston, MA (Gastroenterology)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- American Board of Internal Medicine, Internal Medicine
EDUCATION
- BS: College of Charleston, Charleston, SC; Sigma Alpha Phi, Phi Kappa Phi, Cum Laude Graduate
- MD: Medical University of South Carolina (MUSC), Charleston, SC

Neven Hadzijahic, MD
GASTROENTEROLOGY
Member of Charleston GI since 2000
INTERNSHIP
University Hospital University of Sarajevo
RESIDENCY
Department of Internal Medicine Medical University of South Carolina
FELLOWSHIP
- Henry Ford Hospital, NIH Fellowship, Detroit, MI (Gastroenterology/Research)
- Medical University of South Carolina, Charleston, SC (Gastroenterology)
- Medical University of South Carolina, Charleston, SC (Endoscopic Ultrasonography)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- American Board of Internal Medicine, Internal Medicine
EDUCATION
University of Sarajevo, Bosnia and Herzegovina Department of Internal Medicine

Eddie Irions, MD
GASTROENTEROLOGY
Member of Charleston GI since 2011
INTERNSHIP
Memorial Sloan-Kettering Cancer Center (Internal Medicine), New York, NY
RESIDENCY
New York Hospital of Queens, Weill Cornell Medical College (Internal Medicine), New York, NY
FELLOWSHIP
- Albany Medical College/Albany Medical Center and Affiliated Hospitals (Gastroenterology)Albany, NY
- Medical University of South Carolina (Advanced Endoscopy)Charleston, SC
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- Endoscopic Ultrasonography (EUS)
- Esophagogastroduodenoscopy (EGD)
- Colonoscopy
EDUCATION
- BS: Emory University, Atlanta, GA, Biology
- MD: James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN

Christopher Lawrence, MD
GASTROENTEROLOGY
Member of Charleston GI since 2016
RESIDENCY
Georgetown University Hospital Washington, D.C. (Internal Medicine)
FELLOWSHIP
- University of Virginia Health System, Charlottesville, VA (Gastroenterology and Hepatology)
- Maine Medical Center, Portland, ME (Advanced Endoscopic Procedures)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
EDUCATION
- BA: Duke University, Durham, NC, Psychology
- MD: University of Mississippi School of Medicine, Jackson, MS; Alpha Omega Alpha, Phi Kappa Phi National Honor Society, Cum Laude Graduate,

William F. Marsteller IV, MD
GASTROENTEROLOGY
Member of Charleston GI since 2013
INTERNSHIP
University of Alabama at Birmingham, Birmingham, AL (Internal Medicine)
RESIDENCY
University of Alabama at Birmingham, Birmingham, AL (Internal Medicine)
FELLOWSHIP
Medical University of South Carolina, Charleston, SC (Gastroenterology & Hepatology)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- Board Certified American Board of Internal Medicine, Internal Medicine
EDUCATION
- BS: The Ohio State University, Columbus, OH, Molecular Genetics; Magna Cum Laude with Honors in the Liberal Arts
- MD: The Ohio State University School of Medicine, Columbus, OH

Marc D. Noble, MD
GASTROENTEROLOGY
Member of Charleston GI since 2006
INTERNSHIP
University of Alabama at Birmingham, Birmingham, AL (Internal Medicine)
RESIDENCY
University of Alabama at Birmingham, Birmingham, AL (Internal Medicine)
FELLOWSHIP
Duke University, Durham, NC (Gastroenterology)
EXTENDED TRAINING
- Advanced Therapeutic Endoscopy Training, Duke University, Durham, NC
- Endoscopic Ultrasonography Advanced ERCP techniques Barretts Ablation Internal Stent Placement
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- American Board of Internal Medicine, Internal Medicine
EDUCATION
- BS: Centenary College of Louisiana, Shreveport, LA, Biophysics
- MD: University of Texas Southwestern Medical School, Dallas, TX

Lee M. Royall, MD
GASTROENTEROLOGY
Member of Charleston GI since 2004
INTERNSHIP
University of Alabama at Birmingham, Birmingham, AL (Internal Medicine)
RESIDENCY
University of Alabama at Birmingham, Birmingham, AL (Internal Medicine)
FELLOWSHIP
University of Tennessee Memphis, TN (Gastroenterology)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- American Board of Internal Medicine, Internal Medicine
EDUCATION
- BS: University of South Carolina, Columbia, SC, Mechanical Engineering
- MD: Medical University of South Carolina (MUSC), Charleston, SC

Nathan Shores, MD
GASTROENTEROLOGY & HEPATOLOGY
Member of Charleston GI since 2014
INTERNSHIP
Duke University Medical Center, Durham, NC (Internal Medicine)
RESIDENCY
Department of Internal Medicine, Duke University, Durham, NC
FELLOWSHIP
- Chief Fellow in Gastroenterology at Wake Forest University, Winston-Salem, NC
- University of California San Francisco, CA (ACGME accredited fellowship in transplant hepatology)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
American Board of Internal Medicine, Gastroenterology Transplant Hepatology
EDUCATION
- Wofford College, Spartanburg, SC; Summa Cum Laude, Phi Beta Kappa
- MD: Medical University of South Carolina (MUSC), Charleston, SC; Alpha Omega Alpha, Henry Tracy Ivey Valedictorian Award
- Former Medical Director of Liver Transplantation at Tulane University

R Sidney G. Smith, MD
GASTROENTEROLOGY
Member of Charleston GI since 2008
INTERNSHIP
Wake Forest University, Winston-Salem, NC (Internal Medicine)
RESIDENCY
Wake Forest University, Winston-Salem, NC (Internal Medicine)
FELLOWSHIP
Wake Forest University, Winston-Salem, NC (Gastroenterology)
HOSPITAL AFFILIATIONS
- Bon Secours St. Francis Hospital, Charleston, SC
- Roper Hospital, Charleston, SC
- Roper Mt. Pleasant Hospital, Mt. Pleasant, SC
SPECIALTIES
- Board Certified American Board of Internal Medicine, Gastroenterology
- American Board of Internal Medicine, Internal Medicine
EDUCATION
- BA: University of South Carolina, Columbia, SC
- MD: Medical University of South Carolina (MUSC), Charleston, SC; Immunology Research Paper Award