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Dr. Brent Driskill, ENT at Capitol Breathe Free in Washington, D.C.

Brent R. Driskill, MD

Brent R. Driskill, MD is a board-certified otolaryngologist (ENT) with more than a decade of experience providing advanced care for sinus, allergy, ear, nose, and throat conditions. Since 2012, he has helped thousands of patients improve their breathing, hearing, and overall quality of life. Dr. Driskill practices at Capitol Breathe Free Sinus & Allergy in Washington, D.C.

Professional Background

Dr. Driskill holds a Doctor of Medicine from the Uniformed Services University of the Health Sciences in Bethesda, MD. He completed his residency in otolaryngology at Naval Medical Center Portsmouth and went on to serve as a staff physician and department head at multiple U.S. Navy hospitals.

Before entering private practice, Dr. Driskill gained extensive experience caring for service members and their families during his military career. This service shaped his disciplined, detail-oriented approach to medicine and reinforced his commitment to patient-focused care.

He is board-certified in otolaryngology and has performed thousands of surgical and office-based ENT procedures throughout his career.

Philosophy of Care

Dr. Driskill’s philosophy is rooted in patient-first care, focusing on restoring comfort and function through safe, effective, and minimally invasive techniques whenever possible. He prioritizes treatments that allow for rapid recovery and lasting relief. Collaboration is key—he partners closely with each patient to create a personalized care plan that fits their lifestyle and goals.

Conditions Treated & Procedures

At Capitol Breathe Free Sinus & Allergy in Washington, D.C., Dr. Driskill treats a wide range of ENT and sinus conditions, including:

  • Chronic sinusitis and recurrent sinus infections

  • Balloon sinuplasty (in-office sinus dilation)

  • Deviated septum and nasal obstruction

  • Allergic rhinitis and seasonal allergies

  • Hearing loss and chronic ear conditions

  • Dizziness, vertigo, and balance disorders

  • Voice disorders and airway concerns

  • Snoring and sleep-disordered breathing

Personal Note

Outside of his medical practice, Dr. Driskill enjoys traveling, cooking, and exploring new culinary experiences.

what our ENT patients are saying...

"Run don't walk to see Dr. Khanna. Hands down one of the best doctors ever!"

- M.P.

"Dr. Khanna is an excellent doctor. He is highly skilled and professional."

- K in Alexandria, VA

"Really liked him, great bedside manner, very personal, caring, direct and informative. Takes time to explain everything and options. Would highly recommend him."

-  Patient

"Dr. Khanna has excellent bedside manners and he listens. He goes out of his way to assist his patients. He is honest with his patients if he has to make referral."

-  Patient

"Dr. Khanna is intelligent, respectful and genuine. He's always up-to-date on the latest medical breakthroughs. Me, my husband and daughter are all patients of Dr. Khanna, and always will be."

- B.A.

"I came in with an unending sore throat, and was in to see the Doctor and left with a diagnosis in record time. Dr. Khanna and his staff were professional and efficient. I will definitely come back if I have any other sinus issues and highly recommend."

- S.S.

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