Meet Our Providers

Caroll Koscheski, MD, FACG

Caroll Koscheski, MD, FACG

Dr. Koscheski has been in practice in Hickory since 1991. He received his undergraduate degree from the University of Oklahoma. Dr. Koscheski received his medical degree from Louisiana State University, where he completed his residency and fellowship. He is board certified in gastroenterology and is a Fellow of the American College of Gastroenterology. He has served as Chief of Staff at Frye Regional Medical Center in Hickory. Most recently, he completed two terms as Governor for the State of North Carolina for the American College of Gastroenterology (ACG). He continues to serve ACG as a member of their Board of Trustees. Dr. Koscheski has been selected by his peers to the “Best Doctors in North Carolina” list. He and his wife, Patrice, have three sons.


John Meier, MD, FACG

John Meier, MD, FACG

Dr. Meier joined in practice with Dr. Koscheski in 1994. A native of Atlanta, Dr. Meier received his undergraduate degree from Duke University and his medical degree from the Medical College of Georgia. He completed his residency and fellowship at Fitzsimons Army Medical Center in Aurora, Colorado. He is board certified in gastroenterology and is a Fellow of the American College of Gastroenterology. Dr. Meier has been selected by his peers to the “Best Doctors in North Carolina” list. He and his wife, Kelly, have two children.


Frank Wright, MD, FACG

Frank Wright, MD, FACG

Dr. Wright joined Gastroenterology Associates in 1998. A native of Knoxville, Tennessee, he received his undergraduate degree from Rhodes College in Memphis. He received his medical degree from the University of Tennessee. Dr. Wright completed his residency and fellowship at Emory University School of Medicine in Atlanta. He is board certified in gastroenterology and is a Fellow of the American College of Gastroenterology. Dr. Wright has been selected by his peers to the “Best Doctors in North Carolina” list. He and his wife, Lisa, have three sons.


Simon Allport, MD

Simon Allport, MD

Dr. Allport joined Gastroenterology Associates in 1999. A native of England, he received his undergraduate and medical degrees from the University of London. He completed his residency at Good Samaritan Medical Center in Phoenix, Arizona, and his fellowship at Emory University School of Medicine in Atlanta. He is board certified in gastroenterology. Dr. Allport has been selected by his peers to the “Best Doctors in North Carolina” list.


Gregory Diamonti, MD, FACG

Gregory Diamonti, MD, FACG

Dr. Diamonti joined Gastroenterology Associates in 2002. He received his undergraduate degree from Binghamton University in New York and his medical degree from State University of New York in Brooklyn. He completed his residency and fellowship at Emory University School of Medicine in Atlanta. He is board certified in gastroenterology and is a Fellow of the American College of Gastroenterology. Dr. Diamonti has been selected by his peers to the “Best Doctors in North Carolina” list. He and his wife, Marsha, have three children.


Gaa Richardson, MD

Gaa Richardson, MD

Dr. Richardson joined Gastroenterology Associates in 2008. Following undergraduate training at New York University and Louisiana State University, she received her medical degree from the University of Alabama in Birmingham. Dr. Richardson completed her residency and fellowship at Saint Louis University in St. Louis, Missouri. She is board certified in gastroenterology. Dr. Richardson resides in Hickory.


Susan Nikrooz, MD

Susan Nikrooz, MD

Dr. Nikrooz joined Gastroenterology Associates in 2009. She is a native of Lincolnton, NC. She received her undergraduate degree from the University of North Carolina at Chapel Hill. She received her medical degree from East Carolina University Brody School of Medicine. Dr. Nikrooz completed her residency in internal medicine and fellowship in gastroenterology at Virginia Commonwealth University. She is board certified in gastroenterology. Dr. Nikrooz has been selected by her peers to the “Castle Connolly Top Doctors Central Carolina” list. She and her husband, Ali, have two children.


Siddharth Sura, MD, MPH

Siddharth Sura, MD, MPH

Dr. Sura joined Gastroenterology Associates in 2014. Dr. Sura grew up in Apex, NC. He received his undergraduate and medical degrees from the University of North Carolina at Chapel Hill. He earned his master of public health degree from Johns Hopkins University Bloomberg School of Public Health in Baltimore. Dr. Sura completed his residency and internship at Harvard Medical School Beth Israel Deaconess Medical Center in Boston. He completed his gastroenterology fellowship at Emory University School of Medicine in Atlanta. Dr. Sura is board certified in gastroenterology. He and his wife, Aarti, have two children.


Michelle Hilliard, PA-C

Michelle Hilliard, PA-C

Michelle joined Gastroenterology Associates in 2007. A native of Arden, NC, she received an honors graduate degree from Lenoir-Rhyne University in Hickory. She attended the University of North Carolina at Greensboro and received her Masters of Physician Assistant Studies from Missouri State University. She is board certified by the National Commission on Certification of Physician Assistants and licensed in the state of North Carolina. Michelle is certified in Basic Life Support (BLS). She resides in the Hickory area.


Justin Ellis, PA-C

Justin Ellis, PA-C

Justin joined Gastroenterology Associates in 2015 and brings more than fifteen years experience as a physician assistant to the practice. He grew up in Statesville, NC. He received his undergraduate degree in biology from Campbell University in Buies Creek. He completed his physician assistant program at Mountain State University in Beckley, West Virginia. Justin is board certified by the National Commission on Certification of Physician Assistants and licensed in the state of North Carolina. Justin is certified in Basic Life Support (BLS) and Advanced Cardiac Life Support (ACLS). He and his wife, Shelia, have four children.


Diane Scaife, ANP-BC

Diane Scaife, ANP-BC

Diane joined Gastroenterology Associates in August 2016 as a licensed adult certified nurse practitioner. Prior to joining Gastroenterology Associates, Diane gained extensive experience as a certified nurse practitioner with gastroenterology practices in Shelby, NC and Toledo, Ohio. She began her career as a registered nurse at Mercy St. Vincent Medical Center in Toledo, Ohio, working in critical care, then later served there as a certified nurse practitioner for trauma patients. She is a graduate of the University of Toledo College of Nursing, where she also earned a master’s of science degree in nursing. A member of the American Academy of Nurse Practitioners, Diane is certified in Basic Life Support (BLS) and Advanced Cardiac Life Support (ACLS), and a two-time recipient of Nursing Excellence Awards for Patient Care. She resides with her husband in Kings Mountain.

CALL TODAY TO SCHEDULE A COLONOSCOPY EXAM.

If you are healthy and have no symptoms, call 828-624-1358 to schedule a screening colonoscopy. A registered nurse will take your medical history over the phone and schedule your appointment. If you are having symptoms, you need a referral from your Primary Care Physician.

Our Office in Hickory, NC

Gastroenterology Associates, P.A.
415 North Center Street, Suite 300
Hickory, NC 28601

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Contact Us

Our office is open Monday through Friday from 8:30am to 5:00pm.

(828) 328-3300
(828) 328-9101

Our on-call physician can be reached through the Frye Regional Medical Center at (828) 315-5000 (established patients only)

For appointments and questions:
Call:   (828) 328-3300