Physicians

Guilford Medical Associates Richard A. Aronson MD

Richard A. Aronson, M.D.

Internal Medicine / Diabetes
Diplomate, American Board of Internal Medicine

A Duke University graduate, Dr. Aronson is originally from Boston. He completed medical school at the Bowman Gray School of Medicine at Wake Forest University and a residency in internal medicine at the University of Florida in Gainesville.

Guilford Medical Associates Ravi R. Avva MD

Ravi R. Avva, M.D., Ph.D.

Internal Medicine / Diabetes
Diplomate, American Board of Internal Medicine

A Greensboro native, Dr. Avva graduated from the University of North Carolina at Chapel Hill and Duke University School of Medicine.

Guilford Medical Associates Scott L. Holwerda MD

Scott L. Holwerda, M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine

Dr. Scott Holwerda received his undergraduate training at Samford University in Birmingham, Alabama. He then returned to Georgia to attend Mercer University School of Medicine in Savannah.

Guilford Medical Associates Daniel G. Paterson MD

Daniel G. Paterson, M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine

A Boston native, Dr. Paterson graduated from Boston University and completed medical school at George Washington University. Following residency in Internal Medicine at Walter Reed Army Medical Center, he served in the army for 10 years, achieving the rank of major.

Guilford Medical Associates Mark A. Perini MD

Mark A. Perini, M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine

A Greensboro native, Dr. Perini graduated from Greensboro Grimsley High School in 1990. He also graduated from the University of North Carolina at Chapel Hill and the Wake Forest University School of Medicine.

Guilford Medical Associates John M. Russo MD

John M. Russo, M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine

Dr. Russo is a native of Long Island, New York. He graduated from the University of New York at Albany and received his MD from the University of New York Health Science Center at Syracuse School of Medicine.

Guilford Medical Associates William Douglas Shaw Jr. MD

William Douglas Shaw, Jr., M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine

Dr. Shaw was born and raised in Greensboro and graduated from Page High School. He received his BA from the University of North Carolina at Chapel Hill and his MD from Wake Forest University School of Medicine.

Guilford Medical Associates Stephen A. South MD

Stephen A. South, M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine
Diplomate, American Board of Internal Medicine in Endocrinology and Metabolism

A Vermont native, Dr. South moved to North Carolina with his parents in 1973. He graduated from the University of North Carolina at Greensboro and from the Bowman Gray School of Medicine at Wake Forest University.

Guilford Medical Associates Richard W. Tisovec MD

Richard W. Tisovec, M.D.

Internal Medicine
Diplomate, American Board of Internal Medicine

A Chicago native, Dr. Tisovec graduated from the University of North Carolina at Chapel Hill. He completed medical school at the University of Illinois College of Medicine

Nurse Practitioners
Guilford Medical Associates Brittany Dabbs Nurse Practitioner

Brittany Dabbs, FNP

Brittany received her Bachelor of Science in Nursing from UNC-G and her Masters in Nursing as a Nurse Practitioner from UNC-CH.

Guilford Medical Associates Sue Drinkard Nurse Practitioner

Sue Ellen Drinkard, MSN, FNP-CS

Sue is a Family Nurse Practitioner who has been with Guilford Medical for over 5 years, bringing many years of nursing and nurse practitioner experience.

Guilford Medical Associates Stephanie Edwards Nurse Practitioner

Stephanie Edwards, AGNP

Stephanie first began working at Guilford Medical Associates during her clinical rotation through the Nurse Practitioner program at UNCG. After graduating in December of 2015 with a Masters in Adult Gerontological Nursing, Stephanie joined GMA full-time.

Practice Administrator
Guilford Medical Associates Kevin Simon Practice Administrator

Kevin Simon

Kevin received a BS degree in Finance and MBA from UNCG.  He is a Credentialed member of the American Academy of Medical Administrators as well as an RT and Certified Radiology Administrator.