Internal Medicine

Robert D. Bayliss, Jr, M.D.

Robert D Bayliss, Jr, M.D. is a graduate of Bowman Gray School of Medicine. He has practiced medicine at Internal Medicine Associates of Greenville since 1991. He has also been the Director of Internal Medicine Clinic and Employee Health at Greenville Memorial Hospital. Dr. Bayliss is a Board Certified in Internal Medicine.  

James R. Bloodworth, M.D. 


James Bloodworth, M.D. is a graduate of Medical College of Georgia. He worked for Carolina Emergency Medicine and Greenville Memorial Internal Medicine before joining IMA of Greenville in 2000. Dr. Bloodworth has been board certified in Internal Medicine since 1999. 

Caroline D. Brownlee, M.D. 


Caroline Brownlee, M.D. graduated from the University of South Carolina School of Medicine in 2002. She completed her postgraduate training at Wake Forest University Baptist Medical Center. She is a board certified internist who joined IMA in 2007. 

Thomas V. Chambliss, M.D. 


Thomas Chambliss, M.D. graduated from the University of Texas Health Science Center at San Antonio in 2004. His postgraduate training was completed at Greenville Memorial Hospital. Prior to his career as a medical doctor, Dr. Chambliss obtained a Bachelor's degree in Accounting and was a Certified Public Accountant. He is a board certified internist and joined IMA in 2007. 

William R. Craig, III, M.D. F.A.C.P.

William Craig, III M.D. is a graduate of Medical University of South Carolina and is the senior practicing partner at IMA of Greenville. Prior to joining IMA of Greenville, Dr. Craig served as a general medical officer in the United States Army. He is board certified in Internal Medicine and is a lifetime member of the American Medical Association.  

Robert M. DuBose, III, M.D. 


Robert Dubose, M.D. graduated from the Medical University of South Carolina in 1999. Prior to joining IMA of Greenville in 2003, Dr. Dubose finished his residency training at the Department of Internal Medicine at the University of Florida where he received the Chief resident Award and Leighton E. Cluff in 2002. He is board certified in Internal Medicine.  

Steven L. Graddick, M.D. F.A.C.P. 


Dr. Steven Graddick is a native of Greenville and has been with IMA since 1990. He was first in his class at Furman University. He is a graduate of the Medical University of South Carolina and was a Chief Internal Medicine Resident at Greenville Health System. Dr. Graddick is board certified in Internal Medicine and is a fellow of the American College of Physicians.  

Daniel A. Grover, M.D. 


Daniel Grover, M.D. joined Internal Medicine Associates of Greenville in 1997. After graduating from the Medical University of South Carolina, he was named the assistant chief of medicine at the Bowman Gray School of Medicine at Wake Forest University in North Carolina. Dr. Grover is board certified in Internal Medicine.

David P. Guirao, M.D.

Dr. Guirao earned a medical degree from the University of the Philippines College of Medicine in Manila. He completed an otorhinolaryngology residency at University of Philippines, Philippine General Hospital in Manila and an internal medicine residency at Albert Einstein College of Medicine-Jacobi Medical Center in Bronx, N.Y. He is board-certified in Internal Medicine and a clinical assistant professor at the University of South Carolina School of Medicine Greenville.

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Jai W. Hwang, M.D.

Jai Hwang, M.D. recently joined Internal Medicine Associates of Greenville. He is a graduate of the Medical College of Georgia. Dr. Hwang is completing his postgraduate training in internal medicine at the Greenville Health System. 

David W. Koontz, M.D. 


David Koontz, M.D. graduated from Bowman Gray School of Medicine at Wake Forest. He joined Internal Medicine Associates of Greenville in 2001. He is board certified in Internal Medicine and has hospital privileges at Greenville Memorial Hospital and St. Francis Hospital. 

Ronald P. Lindamood, M.D. 


Dr. Lindamood received a medical degree from Mercer University School of Medicine in Macon, Ga. He completed his residency at Greenville Health System and is board-certified in Internal Medicine and a clinical assistant professor at the University of South Carolina School of Medicine Greenville.

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Peter S. Maurides, M.D. 
F.A.C.P.

Peter Maurides, M.D. graduated from the Medical University of South Carolina. He completed his post graduate training in Internal Medicine at Greenville Health System. He is board certified in Internal Medicine. Dr. Maurides currently serves as the President of Internal Medicine Associates  

Andrew G. McDonald, M.D.

Andrew McDonald, M.D. graduated from the Medical University of South Carolina. He completed his post graduate training at Bowman Gray School of Medicine in North Carolina. He is board certified in Internal Medicine. Dr. McDonald is also certified in Electrocardiography and Cardiac Life Support.  

Sheila O'Grady-Irwin, M.D. F.A.C.P. 


Sheila O'Grady-Irwin, M.D. graduated from the University of South Carolina Medical School. She completed her post graduate training at the University of Louisville in Kentucky before joining Internal Medicine Associates of Greenville. She has worked at Greenville Memorial Hospital as an Associate Director in Medical Education and Medical Director of Internal Medicine Clinics. Dr. O'Grady Irwin is board certified in Internal Medicine.  

Tony S. Poteat, Jr, M.D.

Tony Poteat, M.D. graduated from the Medical University of South Carolina in 1996. He completed his internship and residency at Wake Forest University Baptist Medical Center before joining Internal Medicine Associates of Greenville in 1999. Dr. Poteat is board certified in Internal Medicine and Advanced and Basic Life Support.  

Amy Z. Welcome, M.D. 


Amy Welcome, M.D. graduated from the State University of New York Health Science Center in 1997. She completed here postgraduate training at Brown University Affiliated Hospitals in Providence, Rhode Island. Dr. Welcome worked as a Hospitalist at Oklahoma University Medical Center before joining Internal Medicine Associates of Greenville in 2002. Dr. Welcome is board certified in Internal Medicine.  

David B. Worthington, M.D. F.A.C.P. 


Bryan Worthington, M.D. received his medical degree from Medical University of South Carolina and completed his postgraduate training at Emory University School of Medicine. He has also served as the Medical Director of GHS Home Health Care as well as Chairman of Internal Medicine Clinical Section. Dr. Worthington is board certified in Internal Medicine.