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: June 9, 2020

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

  • Trees: 4
  • Grass: 13
  • Weeds: 2            
  • Outdoor mold: Low

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:

June 22, 2020

This long pollen season is winding down.   Grass pollen still affects those very sensitive individuals, even at these lower counts.   Privet is one of the last pollinating trees at end of June.  Generally July ranks as the lowest pollen months outside the winter. 

With the increased in social acitivities, predicitably the total Covid19 cases have more than  doubled in Napa County since Memorial Day weekend.  Safety is pretty basic.  Wash you hands to protect yourself and wear a mask to protect others.   Community transmission is currently HIGHER than it has  ever been for this virus. 

We continue to see patients with a priority on your safety.  Options available for in-person visits, Telehealth and phone consultations as well as advice  through our patient portal for established patients.

Be safe!



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