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About

Summary: - Advocate Health Care is the nonprofit healthcare system now operating as Advocate Health, a large national network that includes Advocate Health Care in Illinois. It specializes in primary care, wellness, and a broad range of specialties, with strength in cardiology, neuroscience, oncology, pediatrics, rehabilitation, organ transplants, and musculoskeletal programs. - The organization is part of Advocate Health, one of the largest nonprofit, integrated health systems in the U.S., formed from the joining of Advocate Aurora Health and Atrium Health. It serves nearly 6 million patients across 68 hospitals and 1,000+ care locations, with significant clinical research and education programs. - For ENT (Ear, Nose, and Throat) care and specialists specifically in Lombard, Advocate Health Care operates within the Advocate Health system. While the page indicates a broad Illinois presence and multiple locations, it does not specify a Lombard ENT facility on Advocate Health’s site. To find ENT specialists nearby Lombard, contact Advocate Health Care via ahc-social@advocatehealth.com or call 1-630-572-9393, or search the Advocate Health Care location list for the Lombard area.

Clinic Type

Ear, Nose, and Throat (ENT)

Address

2025 Windsor Dr, Oak Brook, Illinois 60523, US

Phone

18003238622

Email

security@aah.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Ear, nose and throat care
  • Otolaryngology
  • Head and neck surgery
  • Sleep apnea treatment
  • Balloon sinuplasty
  • Da Vinci robotic surgery
  • Nonsurgical tonsil reduction
  • Facial reconstructive and cosmetic surgery
  • Thyroid and parathyroid surgery
  • CPAP therapy for sleep apnea

Technology & Equipment

  • Minimally invasive techniques
  • Balloon sinuplasty
  • Da Vinci robotic surgery
  • CPAP therapy

Insurance & Payment

Languages Spoken

FAQs

What services are offered?

ENT care, including sleep apnea treatment, sinus infections, ear infections, tonsillitis, thyroid/parathyroid disorders, deviated septum, tinnitus, head and neck cancers; minimally invasive techniques; balloon sinuplasty; Da Vinci robotic surgery; CPAP; reconstructive/cosmetic surgery.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • U.S. News Doctor Finder: Dr. Feodor Ung: 5/5 stars (465 reviews)

Patients praise

  • highly regarded ENT specialists in the Lombard area, particularly Dr. Feodor Ung
  • patients often describe providers as caring, knowledgeable, attentive, and professional
  • clear communication and effective explanation of treatment plans
  • positive experiences with staff and nurses who are described as kind and thorough

Common complaints

  • complaints about administrative processes such as billing, coding errors, and prescription refills
  • reports of poor bedside manner or hostility from some staff members
  • concerns regarding long wait times and communication barriers

"Dr. Lambert and staff were very kind and personable. He was easy to talk to and the staff were very friendly. Dr. Lambert listened to me and didn't make me feel rushed."

Advocate Health Care Physician Reviews

"Dr. Ung is very caring and attentive and is a doctor. He works hard to help you out. I would recommend Dr. Ung to my family and friends."

WebMD Patient Reviews

"Prescription refills always a problem. The doctor is... The aurora office on highland is trash."

PissedConsumer (Advocate Health Care)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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