COVID-19 (Coronavirus) Advisory:

We are open for appointments, biologic and allergy injections at our regular business hours.  We have become a hands-free office where you are not required to touch any surfaces.  Masks are required in accordance with county regulations.

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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 for 8/18/20

All counts done on the roof of the Queen of the Valley Medical Center in Napa

  • Trees:  15  (elm predominant)
  • Grass: 1
  • Weeds: 23
  • Outdoor mold: minimal

Pollen Scale:

  • 1-15:  Low (sensitive people affected)
  • 16-40:  Moderate (most allergic people affected)
  • over 40: High (all sensitized people affected)


What’s Happening:

August 14, 2020

Our late summer pollen surge is upon us, and as predicted is dominated by elm tree and weed pollens. This will persist for the next months or so and then a three month breather from pollen. Phew….



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