Philip R. Nicol, MD


Trained in internal medicine at Guy’s hospital in London, England, Dr. Nicol came to Wilmington, NC to complete his residency. In 2001, he chose to dedicate his time and practice to diabetes care. Dr. Nicol leads the way on the Grand Strand in the treatment of diabetics. In June of 2011 he was awarded three-year recognition for the third consecutive time by the NCQA provider recognition program and also holds NCQA recognition from the Heart and Stroke program.

Katherine Johnson, MD

Primary Care Physician


Mary Gianforte, RD, CDE

Dietitian, Diabetes Educator

Mary joins The Diabetes Center after moving from Baltimore, MD, where she helped start the Medstar Harbor Hospital Diabetes Center. Mary has over 25 years of experience as a dietitian and is a certified diabetes educator. Her experiences include working with diabetes and lipids in major medical centers, weight loss through corporate wellness, a regular TV segment on the Baltimore news, and promotional services to Cal Ripken, Jr. She is a member of the American Diabetes Association, American Dietetic Association, and the Association of American Diabetes Educators. Mary is excited to be on staff with The Diabetes Center and looks forward to providing you with the latest nutrition information in diabetes management to empower you to achieve your short and long term goals.

Brent Nicol

Business Manager

Brent joined The Diabetes Center in 2006. He graduated with highest honors from Georgia Tech in 2003 with a degree in business management and concentrations in marketing and finance. After college, he spent two years volunteering with the Peace Corps in Peru and worked with a rural co-op of weavers to develop and grow their business. He currently oversees the business, is the lead coordinator for the research program and handles all in-house IT.

Joy Newman

Nursing Supervisor

Joy is one of the original members of the team. She has been a medical assistant since the practice first opened and has worked with Dr. Nicol for almost two decades. She originally started in reception and has worked her way up to her current position supervising the nursing and medical assistant staff.