Welcome to Northside Allergy and Asthma, part of Northside ENT PC and Robert A. Gadlage MD FACS and Associates.

We pride ourselves on providing excellent care and individual attention to our patients. Therefore, patients see the same allergist (Dr. Chacko) every visit and we get to know our patients very well. The goals of our practice are:

   1. Provide high quality care to all patients
   2. Listen to our patients and their needs
   3. Treat patients as we would want to be treated

We cover all areas of adult and pediatric allergy and immunology, including allergic rhinitis (hay fever), sinusitis, asthma, chronic cough, allergen immunotherapy, skin testing, food allergy, hives, drug allergy, anaphylaxis and generalized immune deficiencies.





Glenridge Medical Center
5730 Glenridge Drive
Ste. 220
Atlanta, GA 30328

Fax: +404 252 8781



1360 Upper Hembree Rd.
Ste. 201
Roswell, GA 30076
Fax: +770 664 4431



Hudgens Professional Bldg
3855 Pleasant Hill Road
Ste. 420
Duluth GA 30096

Fax: +770 232 9961

Johns Creek


6335 Hospital Pkwy
Suite 115
Johns Creek, GA 30097
Connected to Emory Johns Creek Hospital in the Physicians' Plaza
Fax: +770 232 0847




1400 Northside Forsyth Dr.
Ste. 320
Cumming, GA 30041
Fax: +770 664 4431


Dr. Thomas Chacko has offices in Atlanta, Roswell, Duluth, Johns Creek, and Cumming

Other Georgia communities served: Alpharetta, Johns Creek, Woodstock, Norcross, Dawsonville,

Dahlonega, Suwanee, Sandy Springs, and Duluth | Other Allergists