Feodor Ung, MD

Otolaryngology - ENT

301 Ratings
Years in Practice: 21 years
Practices In: Lombard, Naperville
Patients Seen: All Ages

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.

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Board Certifications
Awards & Accolades
Instructor, Department of Otology and Laryngology at Harvard Medical School 2003
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

American Academy of Otolaryngology- Head and Neck Surgery American Rhinologic Society
Advocate Good Samaritan Hospital
3815 Highland Avenue Downers Grove, Illinois 60515 630-275-2700 Get Directions
Edward Hospital
801 S. Washington St. Naperville, Illinois 60540 630-527-3000 Get Directions
Northwestern Medicine Central DuPage Hospital
25 North Winfield Road Winfield, Illinois 60190 630-933-1600 Get Directions
Harvard University Graduation Date: 1992 Degree: AB
Washington University School of Medicine Graduation Date: 1997 Degree: MD
Harvard Medical School Resident in Otolaryngology
Massachusetts Eye and Ear Infirmary, Harvard Medical School Rhinology and Advanced Sinus Disease


Balloon Sinuplasty, Computer-Assisted Image-Guided Sinus Surgery, Deviated Nasal Septum Surgery, Drain Sinuses, Endoscopic Dacrocystorhinostomy (DCR), Endoscopic Septoplasty, Endoscopic Sinus Surgery, Ethmoidectomy, Frontal Sinusotomy & Frontal Sinus Surgery, Functional Endoscopic Sinus Surgery, In-Office Balloon Sinuplasty™, Inferior Turbinate Reduction Surgery, Maxillary Antrostomy, Minimally Invasive Sinus Surgery, Nasal Polypectomy, Nasal Surgery, Nasal Turbinate Surgery, Open Sinuses, Repair Deviated Septum, Septoplasty, Sinus Endoscopy, Sphenoidotomy and Sphenoidectomy, Surgery to Alleviate Nasal Congestion/Obstruction, Turbinate Reduction


Ratings Category

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.

Patient Satisfaction Rating

301 Ratings

Provider discussed treatment options

299 Ratings

Provider showed concern

300 Ratings

Provider explained things clearly

298 Ratings

Provider included you in decisions

298 Ratings

Likelihood of recommending this provider

300 Ratings


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.
"*Dr. Ung - Fantastic! Explains everything."
Feb. 9, 2023
"*Dr. Ung is personable, thorough in examining me, explains procedures well and discussed his recommendation for further testing."
Feb. 7, 2023
"Great doc and staff! Wish all were like these gems."
Jan. 31, 2023
"Dr. Ung and his team was attentive and informative in resolving my issue"
Jan. 27, 2023
"Dr Ung is caring, helpful and knowledgeable! He takes the time to examine and explain my medical needs and options. He listens to my concerns and answers my medical questions in a way I can understand. Thank you Dr Ung!"
Jan. 25, 2023
Dec. 28, 2022
"Dr. Ung is an outstanding physician who is thoroughly professional, expert, and respectful. I am so glad to be under his care It Is obvious that he enjoys being a physician and cares very much for his patients. On top of that, he has a wonderful sense of humor. He makes me laugh!!! He deserves a huge bonus!!!"
Dec. 24, 2022
"Dr Ung was sympathetic towards about of pain"
Dec. 19, 2022
"The doctor was relatable. He has a great sense of humor."
Dec. 17, 2022
"The most knowledgeable and caring doctor"
Dec. 14, 2022
"*Dr. Ung is the best! He always provides outstanding care!! He gets an A+++ every time!!!"
Dec. 10, 2022
"Dr Ung, is an amazing Doctor. He is a professional, and caring Doctor. He will do everything he can to help his patients"
Dec. 6, 2022
"Excellent care"
Dec. 6, 2022
"Dr Ung was very nice and pleasant"
Nov. 29, 2022
"Excellent doctor and staff"
Nov. 25, 2022
"They did great job on fixing my problem +++."
Nov. 24, 2022
"Dr Ung is awesome doctor"
Nov. 14, 2022
"Dr. Ung spent a lot of time explaining everything and we had a wonderful conversation about my care."
Nov. 7, 2022
"Dr Ung was very kind and thorough when asking questions about my history and when explaining treatment."
Nov. 5, 2022
"*Dr. Ung explained in detail the course of treatment he wanted to to. Wanted to try the least advance treatment first which I liked."
Nov. 2, 2022
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