← Back to all doctors

D. Allen Brantley, MD

Patients Say:

“Dr. Brantley is a GREAT Doctor! I feel HONORED to get to see him!”

“Dr. Brantley is the best doctor I have. He is always thorough!”

Dr. Brantley Says:

“I became a physician in large part because of my grandfather. He was a small-town family doctor in Mooresville, North Carolina. When we spent time together, he would often share stories of what it was like taking care of patients. Being a physician was truly a calling for him. While in college, I felt a similar calling, and that commitment to being a physician continues today. I have a passion, like my grandfather did, for working with patients and striving to improve their health.

In medical school, I found the endocrine system fascinating. This is one of the major reasons I became an endocrinologist. A strong patient-doctor relationship is important in this specific area of medicine, as we often treat chronic health conditions such as diabetes, thyroid disease, osteoporosis and others. A strong bond with patients fosters trust, and I am excited to continue practicing endocrinology with Tryon Medical Partners.”



Practicing Medicine Since


Medical School

Wake Forest University


Wake Forest University/Emory University

Board Certified

American Board of Internal Medicine; American Board of Internal Medicine - Endocrinology, Diabetes and Metabolism

Honors & Certifications

NCQA Diabetes Physician Recognition Program; NCQA Physician Practice Connections – Patient-Centered Medical Home; Charlotte Magazine Top Doctor (2007, 2008, 2010-2012, 2014-2015, 2017-2023); Best Doctors in America (2008-2012, 2017); Business North Carolina Top Doctor (2021-2022)

Clinical Interests

  • Diabetes
  • Parathyroid Hormone Secretion
  • Thyroid Conditions
  • Abnormalities of Vitamin D
  • Disorders of the Anterior Pituitary
  • Diabetic Retinopathy
  • Hypoglycemia
  • Pheochromocytoma
  • Achondroplasia
  • Acromegaly
  • Congenital Adrenal Hyperplasia
  • Turner Syndrome
  • Pituitary Tumors
  • Adrenal Tumors
  • Osteoporosis
  • Hyperprolactinemia
  • Calcium Metabolism Problems
  • Diabetic Neuropathy
  • Empty Sella Syndrome
  • Endocrine System
  • Glucose Monitoring
  • Hashimoto's Thyroiditis
  • Hyperparathyroidism
  • Hyperthyroidism
  • Hypopituitarism
  • Insulin Replacement Therapy
  • Overactive Adrenal Glands/Cushing's Syndrome
  • Parathyroid Gland Problems
  • Posterior Pituitary Disorders
  • Postpartum Thyroiditis
  • Thyroid Function Tests
  • Underactive Adrenal Glands/Addison's Disease
  • Graves' disease