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

Sydney Costello, RD

Individual provider Registered Dietitian · NPI 1871731968

Sydney Costello, RD is a Registered Dietitian in Everett, Washington. Practices as a sole proprietor. Registered with an NPI since 2009.

In the registry since
2009
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

3020 Rucker Ave Ste 100
Everett, WA 98201-3900
Phone: (425) 252-5374
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X

Record details

NPI number1871731968
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD
Sole proprietorYes
NPI enumeratedJanuary 27, 2009
Last updated in NPPESJanuary 27, 2009
Mailing address3020 Rucker Ave, Suite 100, Everett, WA 98201-3900

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