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

Barbara M. Retzlaff, RD

Individual provider Registered Dietitian · NPI 1154389880

Barbara M. Retzlaff, RD is a Registered Dietitian in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.

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Practice location Address checks out

325 9th Ave Box 359735
Seattle, WA 98104-2420
Phone: (206) 341-4612
Fax: (206) 341-4614
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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 DI00001770 (WA)

Record details

NPI number1154389880
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESJuly 13, 2026

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