Ashley Agan, M.D.

  • Otolaryngology
  • Eustachian Tube Disorders
  • Nose and Sinus (Rhinology) Disorders

Effective Jan. 2, 2024, Ashley Agan, M.D. will be closing her practice at UT Southwestern Medical Center.

The clinic will be happy to recommend a physician to assume your care. Patients can obtain a copy of their medical records by calling 214-645-3030 or by email at


Ashley D. Agan, M.D., is an Associate Professor in the Department of Otolaryngology – Head and Neck Surgery at UT Southwestern Medical Center. She serves as the Otolaryngology Clerkship Director and Medical Director of Otolaryngology at UT Southwestern Frisco. She specializes in general otolaryngology.

Dr. Agan grew up in a small town in North Texas called Blue Ridge. She attended the University of Texas at Austin and graduated with honors with a degree in biomedical engineering.

Dr. Agan earned her medical degree at the University of Texas Medical Branch in Galveston. During her time there, she was an active member of the Texas Medical Association and served as Section Chair during her final year. She spent time lobbying for graduate medical education at the state capitol in Austin, as well as in Washington, D.C. She was inducted into the Alpha Omega Alpha Honor Medical Society in 2010. Her compassion and empathy for patients also led to her induction into the Gold Humanism Honor Society. She completed her residency in otolaryngology at UT Southwester and quickly thereafter joined the faculty.

Dr. Agan’s clinical interests include disorders of the eustachian tube, salivary gland stones and tumors, sialendoscopy, and sinus disease.

She is a member of the American Academy of Otolaryngology – Head and Neck Surgery, the Texas Medical Association, and the Dallas County Medical Society.

Meet Dr. Agan

Otolaryngologist in Dallas

Otolaryngologist Ashley Agan, M.D., can treat ear, nose, and throat (ENT) ailments for the whole family. She enjoys taking care of patients of all ages, and her broad knowledge allows her to diagnose and treat a variety of head and neck pathologies.

“The area of the head and neck is full of important structures vital to our daily living,” Dr. Agan says. “Often, you can’t hide ENT-related issues. These problems affect your face, which is your presentation to the world, or your voice or ears, which are essential for communication.

“The issues might be serious and life-threatening or may simply impact your quality of life. It’s my job to figure out what’s going on and how to treat or cure it.”

As a surgeon at an academic medical center, Dr. Agan has the latest technologies at her fingertips to make procedures safer and recovery times faster.

She uses nerve monitoring, for example, to reduce the risk of nerve damage during a variety of procedures including thyroid, parotid, and ear surgery. She also utilizes endoscopic techniques to operate in very small areas, such as the nasal cavity and paranasal sinuses, as well as inside the middle ear and salivary ducts. She can do it all without making an incision in the skin.

Expertise in All Treatment Options

Not all ENT-related issues require surgery. Dr. Agan is experienced in the latest medical therapies, such as use of botulinum toxin, more commonly known by the brand name Botox, for conditions such as migraine headache, bruxism (teeth grinding), sialorrhea (excessive salivation), and Frey’s syndrome.

She also advises patients on the use of complementary and integrative/alternative medical therapies.

“Many patients are fine with taking a pill for treatment of diagnoses such as laryngopharyngeal reflux or sinusitis, but there are others who want to discuss alternative options. I am well-versed in these areas, so I can tell my patients what’s worthwhile and what’s not,” Dr. Agan says.

“As doctors, we have to be equipped with all sorts of tools to tailor our care to our patients and provide them what they want and need while keeping them safe.”

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Education & Training
  • Medical School - UT Medical Branch-Galveston (2007-2011)
  • Residency - UT Southwestern Medical Center (2011-2016), Otolaryngology
Honors & Awards
  • Texas Monthly Super Doctors, Rising Star 2020-2021
  • Gold Humanism Honor Society 2010, University of Texas Medical Branch at Galveston
  • Alpha Omega Alpha Honor Medical Society 2010, University of Texas Medical Branch at Galveston
  • Eustachian Tube Disorders
  • Medical Education
  • Health Disparities

Clinical Focus

  • Eustachian Tube Disorders
  • Nose and Sinus (Rhinology) Disorders
  • Salivary Gland Stones
  • Salivary Gland Tumors
  • Sialendoscopy

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Q&A by Dr. Agan