Anita Carmen Choy, MD

Welcome to the new online home of Allergist Anita Carmen Choy, MD. Currently serving adults and children suffering from allergies and asthma, Dr. Choy is a Board Certified Allergist, providing comprehensive medical care for adult and children in the Silicon Valley since 1995.
Could You Be Allergic to the COVID Vaccine?

Now that the Covid vaccines are rolling out, you may have questions about potential allergic reactions to the vaccine, or need to be tested before getting the vaccine itself. Please set up a teleconference appointment using the TELECONFERENCE button below before making an appointment to come into the office.

Your COVID-19 Questions Answered

What is COVID-19?

COVID-19 is a new form of coronavirus first identified in December 2019. Coronaviruses ingeneral are not new and are a common cause of colds and upper respiratory infections. We don’t yet know why this new form, COVID-19, is more severe.

How is COVID-19 spread?

COVID-19 is thought to spread mainly person-to-person, through respiratory droplets in coughs or sneezes. It can live on surfaces as well through these droplets.

What is the time period when COVID-19 can spread?

Unfortunately, people can spread infection to others before symptoms first appear. It can then be spread for up to 14 days after symptom onset (possibly longer).

What are the symptoms of COVID-19?

The majority of people experience mild illness but severe illness and death can occur. Fever, cough and shortness of breath are the most common symptoms.

How is COVID-19 treated?

There are no current vaccines, or anti-viral treatments to use when someone is acutely infected. Treatment relies on supportive care to treat symptoms when they occur.

When should I seek emergency care?

Seek immediate medical attention if you have difficulty breathing, persistent chest pain or pressure, sudden confusion or inability to stay awake. These are not the only reasons someone may need emergency care – call your doctor for other concerns. Call any emergency department or medical provider BEFORE arrival to allow them to put precautions in place.

Can I get tested for COVID-19 at your office?

The indications for testing as well as availability for testing are constantly changing. Please refer to our website for current information or call our office with any questions.

When should I cancel my regularly scheduled allergy appointment?

Some non-urgent visits will likely be cancelled for you. If your visit hasn’t been canceled, please call to discuss any specific concerns prior to arrival, especially if you have had recent travel to high risk countries or contact with anyone with known/suspected COVID-19. Also call before arrival if you have had fever/cough in the past two weeks.

Is it safe to come to your office?

We are taking all recommended precautions to prevent spread of COVID-19, including reassessing what care must be done in a face-to-face manner, screening all patients and accompanying family members, regularly disinfecting exam rooms and public areas, and staying up to date with current recommendations from the local Department of Public Health.

I’m getting allergy shots – what should I do?

Please refer to our website for up-to-date information. We may need to change the way we administer allergy shots and will notify patients as soon as possible of any changes. Unless you hear differently, please continue your current schedule. However, for some patients, this may be held for the time being, and doses missed.

Will your office be closing?

We may need to adjust the number of appointments or types of visits depending upon future spread of COVID-19. Please refer to our website for the most up to date information.

What if I have asthma? How will COVID-19 affect me?

We don’t have a lot of information regarding risk of asthma exacerbation with COVID-19. For now, we recommend continuing all currently prescribed daily asthma medications, calling our office if you have had frequent symptoms or needed your rescue inhaler more often, and  starting your asthma treatment plan as soon as possible if symptoms occur.

Are steroids harmful if someone has COVID-19?

It does not appear that inhaled steroids or short courses of oral steroids are harmful for  treatment of asthma. Risk of stopping regular use of inhaled steroids include a loss of asthma control and possible need for treatment with oral steroids. Please do not stop any medications without discussing with your doctor.

I have an immune deficiency – what precautions should I take?

Please contact your doctor directly to discuss any necessary precautions. There are a wide range of immune deficiencies that may have different risk. All general precautions should be followed as outlined above.

In light of the recent COVID-19 outbreak, please be assured that our office is abiding by all CDC guidelines to ensure the utmost safety of our patients and staff. To aid us in doing so, please follow the protocols below:

If you have new onset fever, body ache or cough, please set up for teleconference OR arrange for an appointment at Stanford Express or Sequoia Hospital Express Care.

Allergy Shots Protocol:

Please wear a mask and respect a distance of 5 feet between yourself and others. Please gel in and gel out on leaving our office.

If you come in for an allergy shot, after the shots you’ll be asked to go back to your car and set the timer for 28 minutes before texting us at 6503870090  to let us know that you are fine. Be sure to include your name in the text.

Office visits are prescreened with Telehealth first. Please sign up for your telehealth below.


Thank you for your cooperation and understanding as we continue to provide services to our patients.

For information on being tested for Covid-19, please click the button below to check on your eligibility.

Contact Us


Tel: 650-322-3847
Fax: 650-322-3249


211 Quarry Road, Suite 106
Mail Code 5996
Palo Alto, CA 94304

To contact us via Bluestream Health teleconference, please complete the contact form to the right.

For telehealth consult for 3+ people, please call the office for Zoom conferencing arrangement. 

In addition, please complete the Consent to Speak to Physician via Teleconference form available on the Patient Forms page, or print it, sign, and fax back to our office so we can schedule a teleconference appointment.

Please upload photos of the front and back of your insurance card to schedule the teleconference.**


Office Hours:

Mon: 9am – 5pm
Tue: 9am – 5pm
Wed: 9am – 5pm
Thu: Closed
Fri: 9am – 5pm


Please call the office 650.322.3847 to schedule the time, and be ready at the scheduled time.

Dr Choy will send you a link to either your email OR your phone . Click on the link, consent and allow permissions to turning on video and audio and you are connected. 

Contact Us ShortForm
Please Upload the front and back images of your insurance card. You may also upload your printed and signed Consent to Teleconference form as well:
Maximum upload size: 10MB
Cancellation Fee

Patient Services

 Welcome to the new online home of Allergist Anita Camen Choy, MD. Currently serving adults and children suffering from allergies and asthma, Dr. Choy is a Board Certified Allergist, providing comprehensive medical care for families in the Silicon Valley since 1995. We are a comprehensive center for the treatment of allergies and asthma in both adults and children and treat a wide range of conditions, including:

Allergic Rhinitis
Eczema (Atopic Dermatitis)
Food Allergies
Hay Fever (Allergic Rhinitis)
Hives (Urticaria)
Insect Sting Allergy
Medications Allergies
Nasal Polyposis
Non Aids-Related Immune System Deficiencies
Sleep Breathing Disorders


Allergy Shot Hours


MONDAY:                 9:00am – 4:45pm

TUESDAY:                 9:00am – 4:45pm

WEDNESDAY:          9:00am – 4:45pm

THURSDAY:              Closed

FRIDAY:                    9:00am – 4:45pm

SATURDAY:              Closed

SUNDAY:                  Closed


We accept Medicare and most PPO insurance plans. (If you have questions regarding billing or which insurance plans we accept, please call us. 


**Questions regarding insurance coverage and benefits should be directed to your employer or insurance company.