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About

Midwest Sinus Sleep & Allergy Associates (MW Sinus, Sleep & Allergy, LLC) is an ENT-focused healthcare practice based in O’Fallon, Illinois, with 9 offices across Illinois, including Mount Vernon. They specialize in allergy and sinusitis care, hearing loss, sleep disorders, and cosmetic/wellness services. The organization is privately held, employs 6 staff (growing), and emphasizes high-quality ENT care. For Mount Vernon, IL, their address is 3124 Veterans Memorial Dr., Mount Vernon, IL 62864. Contact: +1 618 816 0715.

Clinic Type

Otolaryngology

Address

1179 Fortune Blvd, O'Fallon, Illinois 62269, US

Phone

618-816-0715 (Effingham, Mt. Vernon, Greenville, Highland) and 618-628-0715 (Shiloh, Edwardsville, Columbia, Breese)

Email

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Sinus care
  • Sleep disorders
  • Hearing disorders
  • Allergy care
  • Otolaryngology
  • Endoscopic sinus surgery
  • Balloon sinuplasty
  • Septoplasty
  • Hearing aids

Technology & Equipment

  • Endoscopic sinus surgery
  • Balloon sinuplasty
  • Septoplasty
  • Sleep studies

Team

  • Dr. Ketan Shah — Founder/Director

Insurance & Payment

Languages Spoken

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye/Google: 4.9 out of 5 stars (400 Google reviews)

Patients praise

  • Professional and knowledgeable medical staff
  • Prompt appointment scheduling and minimal wait times for many patients
  • Effective and clear communication of medical conditions and test results
  • Clean and comfortable office environment

Common complaints

  • Occasional administrative or communication issues, such as emails sent to non-patients
  • Instances of waiting for providers when the office is busy

"Most recently I have been seeing Alyssa and her team for allergy shots in hopes to be less allergic to my pack of animals(and the world). They have been absolutely phenomenal in every way."

LocalityBiz Patient Review

"Waited for a couple minutes and the dr came in and explained my situation in a way that any laymen can understand. Overall it was a very nice experience that I would recommend over and over."

LocalityBiz Patient Review

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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