Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Allyson Floresa Sy, MS, RD

Individual provider Pediatric Nutrition Registered Dietitian · NPI 1831794254

Allyson Floresa Sy, MS, RD is a Pediatric Nutrition Registered Dietitian in San Mateo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2020
Specialties on file
2
What do these letters mean?
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.

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Practice location Address checks out

2713 S Norfolk St Apt 311
San Mateo, CA 94403-1601
Phone: (650) 243-7744
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 86044497 (CA)
Pediatric Nutrition Registered Dietitian Taxonomy 133VN1004X · Licence 86044497 (CA)

Record details

NPI number1831794254
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD
Sole proprietorYes
NPI enumeratedDecember 2, 2020
Last updated in NPPESDecember 2, 2020
Certification dateDecember 2, 2020

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