Welcome to North Bay Allergy and Asthma Associates, Inc

North Bay Allergy and Asthma Associates, Inc in Napa and Sonoma was founded in 1989 by Larry S. Posner. Our physicians and staff at NBAAA strive to deliver excellent patient care and improved quality of life for our patients in the specialized fields of Allergy and Clinical Immunology. Our clinical practice focuses on educating our patients about allergic and immunological diseases. It is an exciting time to be in our field as there are many recent groundbreaking research and treatments in allergy and asthma. We look forward to taking care of you!

Pollen Count  Sept 20th 2019

Airborne sampling weekly from the roof of the Queen of the Valley Medical Center, Napa, CA. 

Total Pollen

Weeds Pollen-  chenopods  15(moderate)

Elm pollen- 7 (low)

This was a very unusual weeds season, as the counts were twice as high as I have recorded over the past 25 years!  Elm trees also peaked two weeks ago .  The good news is that our long nine-month pollen season is coming to an end in  a couple of weeks.    

The bad news is that outdoor mold spore counts will likely rise by the end of October.  



What’s Happening

Sept 20th 2019

We now have three board trained allergist/immunologists to serve you.  Dr. Posner hails from UCSF. Dr. Ahn from Mt. Sinai via Harvard Medical School and Dr. Kaur who just completed her allergy training at Yale University. New patients are welcome and can generally be seen within 1-2 weeks.



Monday - 9:00 am - 5:00 pm

Tuesday - 9:00 am - 5:00 pm

Wednesday - 9:00 am - 7:00 pm

Thursday - 9:00 am - 5:00 pm

Friday - 9:00 am - 12:00 pm


Napa Allergy Shot Hours

Monday - 9:00am - 12:00pm; 2:00pm - 6:00pm

Tuesday - 9:00 am - 12:00pm

Wednesday - 2:00 pm - 7:00 pm

Thursday - 2:00 pm - 6:00 pm

Friday - 9:00 am - 12:00 pm


Sonoma Allergy Shot Hours

Monday - Closed

Tuesday - 2:00pm - 5:30pm

Wednesday - Closed

Thursday -  9:00 am-12:30 pm          2:00 pm - 5:30 pm

Friday - Closed