Dr Elizabeth Vandergriff

Dr. Vandergriff attended The University of Texas in Arlington, TX for her pre-medical degree. She received her medical degree and completed her residency at The University of Texas Health Center in San Antonio, TX. Dr. Vandergriff has been in private practice as a family physician since 1995. She enjoys all aspects of medicine from pediatrics to geriatrics.

Dr. Vandergriff is married with two children and 4 grandchildren. She enjoys crafts and singing.

Schquthia Peacock, FNP

Mrs. Peacock graduated from the University of NC at Chapel Hill with a B.S. in Nursing. She worked as a Registered Nurse for 7 years before deciding to go back to UNC for a master’s degree in Advance Nursing. Schquthia has been in private practice as a Family Nurse Practitioner since 1999. She takes pleasure in care for people of all ages, but she takes particular interest in women’s health.

Schquthia enjoys traveling with her husband. In her spare time, she advocates for patients and increased access to healthcare for all North Carolinians.

In 2014, NCNA named Schquthia Practice Nurse of the y ear. She received the honor of Legislative Nurse of the year in 2017.

Melynda Smith, MSN,ANP-BC,FNP-BC

Melynda is double board certified as an Adult Nurse Practitioner and a Family Nurse Practitioner. Her background includes specialty training in gynecology and internal medicine. She brings over 24 years of experience in nursing.


Melynda graduated Cum Laude from Arizona State University with a Bachelor of Science in Nursing. Following graduation, she joined the U.S. Air Force Nursing Corps. She attained the rand of Captain and served five years on active duty. Melynda went on to receive a Master of Science in Nursing from Indiana University. She received the Academic Achievement Award for a 4.0GPA.


She is a mother of three boys and enjoys international travel, healthy cooking and exercising.

Katharine Mallory, FNP

Mrs. Mallory graduated from University of North Carolina Wilmington with a B.S. in Nursing. She worked as a Registered Nurse for 2 years in critical care before deciding to return to the University of Samford for a Masters Degree as a Family Nurse Practitioner. She loves the opportunity to provide holistic care and positively impact the health of patients and their loved ones.

Katie enjoys spending time with her husband, friends and family. She enjoys painting, cooking and exercising in her spare time.

Carolyn Berlin, FNP

Carolyn Berlin graduated with a masters degree in Trauma Nursing in 2004 from the University of Connecticut and practiced in the acute care setting (ER, ICU, Trauma Floor) and taught undergraduate nursing school over the past 20 years.

She obtained her Post-Masters Certificate from South University in 2018 as a Family Nurse Practitioner. Carolyn has presented at several national conferences on the acute care of the trauma patient admitted for observation and is published in the Journal of Trauma Nursing.

Carolyn lives in Cary with her husband, four children and three dogs. She loves spending time at her “happy place” on Ocean Isle Beach and enjoys reading and traveling with her family. She is very excited to continue her love for medicine at Preston Medical Associates.