Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Hayley Fennessy Smart, MS, RD

Individual provider Registered Dietitian · NPI 1750683009

Mrs. Hayley Fennessy Smart, MS, RD is a Registered Dietitian in Martinez, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2010
Specialties on file
4
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

150 Muir Rd
Martinez, CA 94553-4668
Phone: (925) 372-2356
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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 1042775 (CA)
Nutrition Education Nutritionist Taxonomy 133NN1002X · Licence 1042775 (CA)
Metabolic Nutrition Registered Dietitian Taxonomy 133VN1006X · Licence 1042775 (CA)
Nutritionist Taxonomy 133N00000X · Licence 1042775 (CA)

Record details

NPI number1750683009
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD
Sole proprietorYes
NPI enumeratedNovember 18, 2010
Last updated in NPPESMarch 31, 2015

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