Dr. Anita Carmen Choy, MD

Dr. Choy practices at Welch Pasteur Allergy Medical Group Inc in Palo Alto, California.

Dr. Choy's NPI, 1639136690, was assigned on April 26, 2006. Dr. Choy graduated from University of Sydney Faculty of Medicine in 1987. Dr. Choy holds California license A50663.

Dr. Choy's primary practice is Welch Pasteur Allergy Medical Group Inc, at 211 Quarry Rd, Palo Alto, CA 94304 in Santa Clara County. The practice phone is (650) 322-3847.

Dr. Choy's primary practice is Welch Pasteur Allergy Medical Group Inc in Palo Alto, California. Dr. Choy is also affiliated with Stanford Hospital at 300 Pasteur Drive. Dmand AI also links Dr. Choy to 1 more physician office, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Choy practices, 2 sites in all. Vendor and product names are available with a free account.

Allergy is Dr. Choy's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Choy is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Choy's licenses on file in 2 states: California and Illinois.

Dmand AI lists acute sinusitis, asthma, chronic nasal allergies, chronic sinusitis, hives, immune deficiency disease and upper respiratory infection (URI) among the conditions Dr. Choy treats.

CMS data shows 5,004 Medicare services from Dr. Choy across 12 procedure codes in 2024, for 166 Medicare patients. Medicare paid $86,408 for them. Every service was in an office.

CMS counts 166 Medicare patients who saw Dr. Choy in 2024. The largest group is 65 to 74, with 88 patients. 71% of them have high cholesterol, and 52% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Choy's median patient age at 40, with 49% women.

In 2024, Dr. Choy wrote 468 Medicare Part D claims for 90 patients. 56% of them were for generic drugs. CMS names the drug for 321 of them, across 13 drugs with 11 or more claims each, at $129,127 in total drug cost. In 2023, CMS named 272 claims across 12 drugs.

Dr. Choy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Choy as offering telehealth.

Dmand AI links 2 papers to Dr. Choy. Dr. Choy's most frequent co-author is Toby Levenson, MD.

CMS Open Payments shows 212 general payments to Dr. Choy from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,268.

Dmand AI lists 4 awards for Dr. Choy, most recently Regional Top Doctor in 2014.

Dr. Choy graduated from University of Sydney Faculty of Medicine in 1987. Dr. Choy is a member of AAAAI, American College of Allergy Asthma and Immunology- ACAAI and ACCP.

Dr. Choy is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.