Midwest Sinus, Sleep & Allergy Associates: Home
Otolaryngology • Mount Vernon, IL • 8 locations locations
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)
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Opening Hours
Not published — contact the clinic to confirm hours.
Website
Services Offered
Technology & Equipment
Team
Insurance & Payment
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Languages Spoken
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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 ReviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Tracy Wissmann — May 6, 2026
- Tonsillar Coblation: A Minimally Invasive Alternative to Tonsillectomy Now Offered at National Sinus Institute — Jul 18, 2025
- How AAIRS Clinic & Troy Sleep Center Expands Access To Sleep Care Across Southeast Michigan | — Jul 1, 2026
- New Study Explores Link Between Hormonal Contraceptives and Chronic Rhinosinusitis in Women - American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) — Feb 9, 2026
- Sleep Better Marysville Expands Sleep Apnea Treatment Services in Marysville, Ohio with Noninvasive Solutions for Obstructive Sleep Apnea Patients - Daily Leader — Feb 25, 2026
Information sourced from the clinic's website as of July 11, 2026.
More otolaryngology clinics in Mount Vernon
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Summary: Ian McLeod, MD is affiliated with SSM Health Mount Vernon, a nonprofit Catholic health system serving Illinois, Missouri, Oklahoma, and Wisconsin. SSM Health Mount Vernon provides hospital, urgent care, primary care, pediatric services, and virtual care options as part of SSM Health’s integrated network. SSM Health is headquartered in St. Louis, founded in 1872, and operates through hospitals, physician offices, home health, hospice, a pharmacy benefit company, health plan, and accountable care organization across multiple sites. For details on Dr. McLeod’s role, contact information, or appointment options at Mount Vernon, visit ssmhealth.com or the Mount Vernon location page.
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