The Allergy and Asthma Clinic
Andrew C. Engler, M.D.
Medical Director
290 Baldwin Avenue
San Mateo, California 94401
(650) 343-4597
Map and Directions

Allergy Shot Hours

San Mateo Office:

Mondays, Tuesdays and Thursdays: We are open for drop-in allergy injections in the San Mateo office from 9:00am - 5:30pm.

Wednesdays: 9:00am - 2:00pm.

Fridays: We are open for drop-in allergy injections from 7:30am-3:30pm.

Daly City Office:

Tuesdays: We are open for drop-in allergy injections in the Daly City office from 1:30pm - 5:30pm.

Wednesdays: We are open for drop-in allergy injections in the Daly City office from 10am to 12pm and 1:30pm - 5:30pm.

Welcome to The Allergy and Asthma Clinic

Allergists in San Mateo, California's Bay Area

People with allergies and asthma should know that there are many treatment options available that can help minimize symptoms, allow you to feel well, be active and live a healthy, productive life.

We are pleased you have chosen The Allergy & Asthma Clinic. We specialize in helping people who suffer from allergic disorders. We are committed to the best possible health care for all of our patients. We pride ourselves on paying lots of attention to those little details that we know can make a big difference. Our office is at 290 Baldwin, at the corner of Ellsworth,down the street from Mills Hospital. We want to make it as easy as possible for you to get your allergy care at our office. If there are any concerns that were not answered during your visit, or if you have any questions about your treatment, we hope you will let us know.

COVID-19 Update as of 5/19/22

Due to the significant uptick in California COVID-19 outbreaks, effective May 19th, 2022, we have updated our staff and patient in-office protocols as follows:


Prepare for Spring Allergies Now

PollenWinter is a great time to prepare for spring allergy season. If allergen immunotherapy is or has been recommended after your allergy skin tests, you can start building your body’s resistance to your specific allergic triggers now to reduce the impact these allergens have on you in the spring months.

We are happy to help you check your specific insurance plan benefits and if there are any referral requirements for your visits. If you have any questions about your insurance benefits or to schedule an appointment, please call (650) 343-4597. You may also Request An Appointment through our website.

Can Cluster Immunotherapy accomplish a month's worth of immunology injections in just one 2 hour visit?

What is an Allergy? - Basic Principles of Allergy

Is it a Cold or Allergies?

Allergic conditions account for 40% of absences in the work field and many of our patients have noted that although they’re not “sick” their symptoms can affect their work and even the quality of their life. Allergies occur when your immune system goes haywire. Our body protects itself from invading germs and other organisms with a complex set of proteins, blood cells and other defenses which work together to form the immune system.