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Clinic Type

Allergy & Immunology

Address

Glen Ellyn: 430 Pennsylvania Ave., Suite 220, Glen Ellyn, Illinois 60137; Bloomingdale: 220 Springfield Drive, Suite 320, Bloomingdale, Illinois 60108; Naperville: 808 Rickert Drive, Suite 202, Naperville, Illinois 60540; Joliet: 2100 Glenwood Ave., Joliet, Illinois 60435; Lombard: 1801 S. Highland Ave., Suite 220, Lombard, Illinois 60148; Orland Park: 16660 107th Avenue, Orland Park, Illinois 60467; Plainfield: 24600 W. 127th St., Building B, Suite 225, Plainfield, Illinois 60585; Lockport: 1206 E. 9th St., Lockport, Illinois 60441

Phone

1-630-545-7833 (Bloomingdale, Glen Ellyn, Lombard, Naperville, Plainfield); 1-815-744-2300 (Joliet, New Lenox); 1-708-460-7355 (Orland Park)

Email

duly@mrocorp.com

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Allergy
  • Asthma
  • Immunology
  • Allergy testing
  • Immunotherapy
  • Allergy shots
  • Concussions? (not relevant)

Team

  • Andrey Leonov, Board-certified in Allergy & Immunology (implied) — MD
  • Amee Majmundar, Board-certified in Allergy & Immunology (implied) — MD
  • Jacqueline V. Moran, Board-certified in Allergy & Immunology (implied) — MD
  • Melissa Robinson, Board-certified in Allergy & Immunology (implied) — DO
  • Brian A. Smart, Board-certified in Allergy & Immunology (implied) — MD
  • Thomas J. Van Osd, Board-certified in Allergy & Immunology (implied) — MD

Insurance & Payment

—

Languages Spoken

  • English

FAQs

What conditions do you treat?

Allergic rhinitis, sinusitis, asthma, urticaria (hives), eczema; evaluations for food and medication allergies.

What conditions do the allergists treat?

They treat conditions including allergic rhinitis (hay fever), sinusitis, asthma, urticaria (hives) and atopic dermatitis (eczema), among other respiratory, allergy, and immunology concerns.

Are walk-in allergy shots available?

Walk-in allergy shot services are suspended until further notice at all allergy locations; shots are available by appointment only.

How can I schedule an appointment?

To schedule, call the preferred location listed above.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Yelp (for Associated Allergists & Asthma Specialists): 3.0 out of 5 stars (23 reviews)

Patients praise

  • Highly knowledgeable and experienced doctors
  • Thorough and compassionate care provided by physicians
  • Effective treatment of allergy and asthma conditions

Common complaints

  • Reports of rude and unprofessional behavior from office staff
  • Difficulty with scheduling and communication over the phone

"I had my first appointment today and I wouldn't send a dead rat to this business. The only employee who was kind over the phone was the gentleman. All of the women are rude and have a nasty attitude."

— Yelp review for Associated Allergists & Asthma Specialists

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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