COVID-19 (Coronavirus) Advisory:

We are open for well appointments and allergy shots at our regular business hours.  We have become a hands free office where patients do not have to touch anything.

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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  March 16, 2020

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


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)


Oak trees have been extremely high  now for over two months!  This is unusually long pollination period.  May will be the worst pollen month of the year.  




What’s Happening:

March 22, 2020

Covid19 is officically in Napa County.  Sadly, up until last Wednesday there were no test kits available in the county. Of course this virus has likely been in our community a few weeks.

Please note we are open for business but are staffing the office for well visits and injection therapy only.  We are actively communicating with our patients via the patient portal and by phone.

Be safe!  Masks are only necessary if you are sick.

Ironically the tree pollens have been higher than they have been for years. so there is some advantage to be hunkered down.   Keep your windows closed as much as you can, particulary at night, as pollen bursts are higher at daybreak.



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