Live
Read more

About

Midwest Allergy Sinus Respiratory (MASA) is a physician-led, academically oriented subspecialty practice based in Normal, Illinois, with flagship in Bloomington-Normal and additional offices in Springfield, Peoria, Carlinville, and Jacksonville. The clinic specializes in Allergy/Immunology and Pulmonary care, offering services across allergy, asthma, immunology, COPD, sleep disorders, sinus and facial care, dermatitis, food allergies/intolerance, infusion/IVIG (including PANDAS), allergy shots/drops, and oral food desensitization. MASA emphasizes a multidisciplinary approach, integrating subspecialty expertise to treat a broad range of respiratory and allergenic conditions. Founded in 2013, it operates as a center for clinical research and patient-centered care across Central Illinois.

Clinic Type

Allergy & Immunology

Address

Normal, IL and Springfield, IL with satellite offices in Carlinville, Jacksonville, and Peoria

Phone

309-451-7509

Email

administrativestaff@asthma2.com

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Allergy testing
  • Asthma care
  • Environmental and food allergy testing
  • Sinusitis treatment
  • Immunology
  • Hives and contact dermatitis treatment
  • Oral immunotherapy (SLIT)
  • Pulmonology
  • Internal medicine
  • Clinical research/clinical trials
  • New-patient information
  • Patient forms
  • Telehealth/virtual visits (not specified)

Technology & Equipment

  • Office-based food immunotherapy (SLIT)
  • Allergy testing
  • Immunology testing

Team

  • Dareen D. Siri, M.D. — M.D.

Insurance & Payment

—

Not specified

Languages Spoken

  • English

Current Offers

New patient information

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Healthgrades: 5.0 out of 5 stars (based on 1 rating) (1)

Patients praise

  • Knowledgeable and compassionate providers
  • Friendly and attentive staff, particularly in the shot room
  • Staff take the time to explain procedures and care plans clearly
  • Efficient appointment scheduling and welcoming office environment

Common complaints

  • Some patients have reported mixed experiences, with specific positive feedback directed at nursing staff but less clarity on overall office satisfaction

"I wouldn't go anywhere else. The providers and staff are knowledgeable and compassionate."

— Healthgrades review (Teri J)

"I have had excellent care at MASA! My provider's fantastic!! He's very knowledgeable and takes time to explain things out. He encourages asking questions."

— MASA official website testimonials

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.

More allergy & immunology clinics in Springfield

Allergies

4.4(124)
Springfield, IL·Allergy & Immunology

VerifiedOnline booking
Springfield, IL·Allergy & Immunology

VerifiedOnline booking
Springfield, OH·Allergy and Immunology

Summary: Western Medicine Family Physicians is a small primary care clinic (self-owned) based in Enon, Ohio, with three offices in southwest Ohio, including a Fairborn location. It emphasizes patient-centered, holistic preventative care and management of chronic illnesses, offering an in-house laboratory for convenient services. The practice sees patients of all ages (birth to elderly) and handles urgent problems as part of its services. Current staff size is 2, and the clinic operates under the umbrella of Western Medicine Inc. Contact options include multiple phone numbers for scheduling and inquiries. Note: The provided content does not mention a Dr. Jeremy M. Sikora, MD, or link to a Springfield, OH listing for him. If you need verification for Dr. Sikora specifically, I can search for his practice location and credentials.

VerifiedOnline booking

Springfield, OH

2.2(40)
Springfield, OH·Allergy and Immunology

VerifiedOnline booking
Springfield, OH·Allergy and Immunology

Verified

See all allergy & immunology clinics in Springfield →

Comparing your options?

See other allergy & immunology clinics in Springfield, or search the full directory by insurance, ratings, and more.

More Allergy & Immunology Clinics