To schedule an appointment
see our eight convenient locations for an office nearest you.


Due to the community health emergency related to COVID-19 coronavirus, our offices will be closed through April 27.

Plan: Appointments are available with our physicians online and may be scheduled by calling your home office at 312-332-4292

As always, contact the answering serve for emergencies by calling
your home office number at 312-332-4292.

Sorry for the inconvenience.

The staff at Associated Allergists and Asthma Specialists.

Allergists Chicago Loop

New patients are welcome at the Chicago Loop allergy clinic.


  • Monday 9 a.m. to 5 p.m.
  • Friday 9 a.m. to 5 p.m.
  • No allergy shots between 1:15 and 2:15 p.m.

Last Allergy Injection will be given 45 minutes before closing.


  • Mark Lowenthal, M.D.
  • James A. Thompson, M.D.


25 E. Washington St. Ste. 1329 Chicago, IL 60602