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  Jan 3, 2020

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

Total Pollen

Juniper-Cypress     35

Pine                          2

Alder                        1

Oak                           1

Outdoor mold:       Moderate


Tree Pollen Scale:

1-15  Low                   (sensitive people affected)

16-40  Moderate       (most allergic people affected)

over 40  High             (all sensitized people affected)




The juniper/cypress counts are climbing rapidly, right on their usual schedule.  These two trees are allergenically identical.   Italian Cypress (tall skinny trees) and California juniper (shrubbery throughout the valley). If you want to see what they look like, juniper bushes line the sidewalk in front of the Queen of the Valley Hospital.

For current patients you can see your allergy testing results 





What’s Happening

January 1, 2020

Happy New year to everyone!  Our pollen mold counter in operational again.  The local counts are done in top of our hospital and are more relevant for us than pollen .com. 

Believe it or not, our pollen season is just starting again, after three months with virtually no pollen.  Due to the very dry year, mold counts have remained low until mid December. Once all the dead leaves etc are washed away with,  outdoor mold counts will drop precipitously.


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