Abbey (Sarah) Stull, PA-C

Abbey (Sarah) Stull, PA-C is a board-certified physician assistant specializing in otolaryngology (ENT) at Capitol Breathe Free Sinus & Allergy Centers in Washington, D.C. She provides evaluation and treatment for sinus, allergy, and nasal conditions and is currently welcoming new patients.

Professional Background

Abbey is originally from Montgomery County, Maryland. She earned her bachelor’s degree in Public Health Science from the University of Maryland before completing her Master of Medical Sciences in Physician Assistant Studies at Chapman University in Orange County, California.

Before joining Capitol Breathe Free, Abbey worked in acute care specializing in Cardiac Electrophysiology at MedStar Washington Hospital Center, where she treated patients with a variety of heart arrhythmias. This experience strengthened her skills in advanced patient care, which she now brings to the field of otolaryngology.

Philosophy of Care

Abbey is passionate about delivering comprehensive, patient-centered care for sinus, allergy, and nasal conditions. She takes a patient-first approach to ensure individuals feel informed, comfortable, and supported throughout their treatment. She works collaboratively with patients to create care plans that reflect their goals and values, and when appropriate, she recommends conservative and minimally invasive options to promote quicker recovery and lasting results.

Conditions Treated & Procedures

Abbey provides comprehensive evaluation and management for sinus, nasal, and allergy conditions, along with general ENT concerns. Her approach emphasizes listening carefully to patient concerns and tailoring care to deliver meaningful, lasting results.

Chronic sinusitis and recurrent sinus infections
Nasal obstruction and deviated septum
Seasonal and environmental allergies
Ear infections and hearing loss
Tinnitus evaluation and management
Tonsil and throat conditions
Voice and swallowing disorders
Preventive sinus and allergy care

Personal Note

Outside of work, Abbey enjoys hiking, traveling, SoulCycle, and exploring Washington, D.C. with friends and family.

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.