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.

Patient Services

 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 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.

Meet Our Team




Doctor Anita Carmen Choy is a Board Certified Allergist, providing comprehensive medical care for adult and children in the Silicon Valley since 1995. Now serving the Palo Alto community from her Stanford office, Dr. Choy was also the Allergist at the Google Wellness center at Mountain View campus from 2005-2011. Dr. Choy received her Allergy training at Northwestern University in Chicago, where she also completed her Internal Medicine Residency. She received her medical degree from Sydney University in Sydney, Australia. Currently an executive board member for the Northern California Society of Allergy, Asthma and Immunology, Dr. Choy served as Secretary, Vice President and President of the Board of the Northern California Allergy & Asthma Society between 2004 and 2008. She has been continuously recognized in America Top Docs and People’s Choice Awards.

California Society of Allergy, Asthma and Immunology – Executive Board Member 2000-2006
Bay Area Women Allergy Society, Co-Organizer 1997
Northern California Allergy, Asthma and Immunology, President 2008
Associate Clinical Professor – UC San Francisco 1995-2003
American Academy of Asthma, Allergy and Immunology- FELLOW
American College of Asthma, Allergy and Immunology Member
American College of Chest Physician – FELLOW
Allergy Fellowship – Northwestern Memorial Hospital, 1993-1995
Internal Medicine – Northwestern Memorial Hospital, 1990-1993
MBBS-Sydney, Australia


Doctor Hailen Mak, M.D., M.P.H., is a Board Certified Allergist practicing allergy and pulmonary disease in San Jose and Palo Alto for the past 30 years. Since 1982, Dr. Mak has served as clinical faculty and attending in Pediatric Allergy and Immunology at Stanford University School of Medicine and at Lucille Packard Children’s Hospital. Dr. Mak received her medical degree from New York University and completed a Pediatric Residency at Children’s Hospital of Northern California. She obtained a Master of Public Health degree at Johns Hopkins University, where she also completed a Preventive Medicine Residency and a Fellowship in Allergy, Immunology and Pulmonary Medicine. Before returning to California in 1981, Dr. Mak was a faculty and co-director of Pediatric Allergy Clinic at Johns Hopkins.

Director, Medical Section of the Dharma support Association, Chung Tai Zen Center of Sunnyvale

Medical Consultant, Chung Tai Monastery in Puli, Taiwan

Chair, Public Service Committee, Santa Clara County Medical Association

Founder and President, South Bay Chapter of American Medical Women Association

Founder and President, Association of Bay Area Women Allergy Physicians

Medical Peer Reviewer, California Medical Association Appeals Committee

Allergy Information

If your eyes itch and are red, tearing or burning, you may have eye allergies (allergic conjunctivitis), a condition that affects millions of Americans. Many people will treat their nasal allergy symptoms but ignore their itchy, red, watery eyes.

Dust allergies also make it difficult to breathe and may trigger asthma symptoms, such as wheezing, coughing, tightness in the chest and shortness of breath. Visit Mission Allergy for more information.


More than 50 million Americans have an allergy of some kind. Food allergy symptoms are most common in babies and children, but they can appear at any age.


Bumps, itching, redness and other skin conditions are very common, and their cause may not be easily identifiable. Eczema and hives, both of which are related to allergies, are two of the most common skin rashes.


Allergic reactions to latex may be serious and can very rarely be fatal. If you have latex allergy you should limit or avoid future exposure to latex products.


Sinus disease is a major health problem. Sinus disease is responsible for 16 million doctor visits and $150 million spent on prescription medications.


Mold allergies can be tough to outrun. The fungus can grow in your basement, in your bathroom, in the cabinet under your sink where a leak went undetected, in the pile of dead leaves in your backyard and in the field of uncut grass down the road.


If you sneeze a lot, if your nose is often runny or stuffy, or if your eyes, mouth or skin often feels itchy, you may have allergic rhinitis, a condition that affects 40 million to 60 million Americans.

Allergy & Asthma Resources

















Elegant Themes

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