Duly Health and Care Logo

Care Team

Need an appointment sooner? While your primary care provider or specialist are the anchor of your care team, their advanced practice providers and physician partners are available to provide care when you need it.

Locations

Lombard

1801 S. Highland Ave.Lombard, Illinois 60148
630-873-8700

Naperville

808 Rickert DriveNaperville, Illinois 60540
630-355-8000

About Feodor Ung, MD

Philosophy of Care

I believe in a collaborative approach to patient care with shared decision making. This starts with listening carefully to my patient’s symptoms and concerns to better understand their medical condition. I strive to educate my patients regarding their diagnosis and provide them with a thorough understanding of the available treatment options. I hope to select a treatment plan with patient input that will deliver the best possible clinical outcomes by taking into consideration their health care goals and lifestyle. It is my privilege to be part of your health care team.

Board Certifications

Otolaryngology

Languages

English

Clinical Interests

Dr. Ung specializes in the treatment of nasal and sinus disorders with particular interest in chronic sinusitis, nasal polyposis and nasal obstruction. As the only fellowship trained sinus surgeon practicing exclusively in DuPage County, he has exceptional expertise in endoscopic and minimally invasive surgical techniques to treat chronic sinonasal conditions.

Dr. Ung critically evaluates new technology and endeavors to bring the latest tools and techniques to the communities he serves. He was the first in DuPage County to perform balloon sinuplasty, place Propel steroid eluting stents during sinus surgery and implant Sinuva for patients with nasal polyposis. He has extensive experience in computer assisted, image guided surgery and powered instrumentation. Dr. Ung continuously seeks to expand his knowledge base through additional courses and training programs. Dr. Ung understands the suffering that people with nasal and sinus disease experience and knows relief of these symptoms can bring dramatic improvement to their quality of life. He strives to educate patients regarding their disease process and potential treatment options so they may understand the goals of therapy and have realistic expectations of outcomes. Through this dialogue, Dr. Ung hopes his patients play an integral role in the decision making process regarding their treatment, whether medical or surgical. Dr. Ung graduated magna cum laude with highest honors from Harvard University. He went on to earn a medical degree from the Washington University School of Medicine in St. Louis while also garnering a research fellowship from Harvard Medical School. After an internship in General Surgery at Brigham and Women's Hospital, Dr. Ung completed his residency in Otolaryngology – Head & Neck Surgery at Harvard Medical School. He then finished an intensive, specialized fellowship in Rhinology and Sinus Disease at the Massachusetts Eye and Ear Infirmary. Following his fellowship, he practiced for several years as an attending physician at the Massachusetts Eye and Ear Infirmary. As part of his duties there, he lectured at Harvard Medical School and was involved with medical student and resident education. Included in his honors is a teaching award from Harvard University. The results of his research have been presented at national and regional meetings and published in peer-reviewed journals.

Personal Interests

Traveling, Running, Golfing, Skiing with my family, A cup of coffee and a good book, Boston sports teams, Conversations with friends

Memberships

American Academy of Otolaryngology- Head and Neck Surgery

American Rhinologic Society

Awards & Accolades

Castle Connolly 2025 Top Doctor

2025

Instructor, Department of Otology and Laryngology at Harvard Medical School

2003

Schools
Harvard UniversityGraduation Date: 1992Degree: AB
Washington UniversityGraduation Date: 1997Degree: MD
Residency
Harvard Medical SchoolResident in Otolaryngology
Fellowships
Massachusetts Eye and Ear Infirmary, Harvard Medical SchoolRhinology and Advanced Sinus Disease

Ratings and Comments

Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.

Doctor Ung is terrific. Easy going, professional, down to Earth, I felt very assured of my medical situation being treatable.

5

Nov 11, 2025

Doctor was very attentive to my needs and questions.

5

Nov 10, 2025

Dr. Ung has provided his professional opinions on my diagnosis. He has cleared my concerns with optimism, further to reassure me by doing a clinical test at various labs. He was quick to perform an office test and very accommodating to spray sedative before the in office procedure. He is a great specialist on ENT medical field.

5

Nov 3, 2025

Dr. Ung always takes the time to explain treatment and treatment plan. Very easy to talk to.

5

Oct 1, 2025

Good visit overall.

5

Oct 1, 2025

Patient Satisfaction Rating

4.9

501 Reviews

The Patient Satisfaction Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Contact Us
Need Help?
Corporate Mailing Address1100 W 31st Street
Downers Grove, Illinois 60515
Main Line - (630) 469 9200Billing Customer Service - (866) 734 7680
Stay ConnectedSign up for Duly e-Newsletters