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Courtney Collier, PA-C

Courtney Collier, PA-C

AppGastro
Appalachian Regional Medical Associates
National Commission on Certification of Physician Assistants
Gastroenterology
(828) 264-0029
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Courtney Collier, PA-C is nationally certified by the NCCPA to practice as a Physician Assistant. A North Carolina native, she is proud to return home to serve the population of the High Country in the beautiful mountains of western North Carolina.

She earned her B.S. from the University of North Carolina at Greensboro in Nutrition Science in 2013 and her Master of PA Medicine degree from the University of Lynchburg in 2018. Prior to moving to Boone, she served the population of Lynchburg, VA practicing primary care at a local community health center.

Outside of work, she enjoys spending time with her husband and family, hiking, trail running, gardening, canning, cooking, and knitting. She is thrilled to be a part of ARHS and to help improve the health of patients in the High Country.

Gregory Diamonti, MD, FACG

Gregory Diamonti, MD, FACG

AppGastro
Appalachian Regional Medical Associates
American Board of Internal Medicine in Gastroenterology
Gastroenterology
(828) 264-0029
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Dr. Diamonti 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 also received the Patients’ Choice Award presented by Vitals.com in recognition of the difference he has made in the lives of his patients, an honor given to physicians who received near perfect scores as voted by their patients.

He and his wife, Marsha, have three children.

Lindsey N. Henley, FNP-C

Lindsey N. Henley, FNP-C

AppGastro
Appalachian Regional Medical Associates
American Association of Nurse Practitioners
Gastroenterology
(828) 264-0029
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Lindsey Henley is certified by the American Association of Nurse Practitioners as a Family Nurse Practitioner. She is a nurse practitioner at AppGastro, a member of Appalachian Regional Healthcare System.

Lindsey is originally from Arkansas but grew up in Banner Elk.  She has a history degree from the University of North Carolina, a nursing degree from East Tennessee State University and her Master’s degree from Simmons University in Boston, Massachusetts.  She completed her clinical rotations locally at Baker Center for Primary Care, Harmony Center for Women and Appalachian Regional Internal Medicine Specialists.  She feels very blessed to be able to serve as a provider to her community.

When not at work, Lindsey enjoys spending time with her husband, Travis, and two daughters.  She also likes most outdoor activities, especially fly fishing and hiking.

Douglas M. Trate, MD

Douglas M. Trate, MD

AppGastro
Appalachian Regional Medical Associates
American Board of Internal Medicine in Gastroenterology
Gastroenterology
(828) 264-0029
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Dr. Doug Trate earned his undergraduate degree from the University of Pennsylvania and his medical degree from the University of Medicine and Dentistry of New Jersey. After completing his internship and residency in Internal Medicine at Temple University Hospital (TUH), Dr. Trate followed his passion in treating people with gastrointestinal diseases and completed a fellowship in Gastroenterology and an additional research fellowship in GI Motility at TUH.

For more than 22 years while residing in the High Country community, Dr. Trate has enjoyed taking care of patients with diseases of the digestive tract, such as heartburns/reflux disease, abdominal pain, liver and pancreatic disorders, inflammatory bowel disease (Crohn’s/Ulcerative Colitis), irritable bowel syndrome, and hemorrhoids. With multiple aunts and uncles with colon cancer, one of Dr. Trate’s personal and professional goals is to help patients be pro-active and undergo screening to prevent development of colorectal cancer.

Dr. Doug Trate lives in Blowing Rock with his wife and their 3 children. He loves walking and hiking, building a fire with his sons on cold days, and “putzing” around in the garden.

Professional Involvement

  • American College of Gastroenterology
  • American Gastroenterological Association
  • American Society for Gastrointestinal Endoscopy.
Olivia Wilkins, PA-C

Olivia Wilkins, PA-C

AppGastro
Appalachian Regional Medical Associates
Gastroenterology
(828) 264-0029
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Olivia Wilkins is a Physician Assistant from Apex, NC. She graduated valedictorian from North Carolina State University with a bachelor’s degree in Biology and a minor in Spanish. She then went on to receive a master’s degree from the Boone campus of the Wake Forest School of Medicine Physician Assistant Program. Olivia has experience in internal medicine, nephrology, and pediatrics. After completing her medical training, Olivia decided to stay and practice in the high country as she had fallen in love with the place and, even more so, the people. Olivia has a passion for medical missions, caring for the person AND the patient, and being a provider that listens before speaking.

Olivia is married to her best friend/husband and they both serve as leaders in the college ministry at their church. When not at work, Olivia loves to be outside hiking, kayaking, and playing with her dog. She also loves music and plays the guitar, mandolin, and cajon in her church’s praise band as well as in bluegrass jams.