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

Individual provider Registered Dietitian · NPI 1336272087

Beth Siwek, RD, RN, MPH is a Registered Dietitian in Phoenix, Arizona. Works from 2 locations. Licensed in Arizona and Illinois.

Licensed in
AZ, IL
In the registry since
2007
Specialties on file
3
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

1919 E Thomas Rd
Phoenix, AZ 85016
Phone: (602) 933-3366
Fax: (602) 933-4264
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1919 E Thomas Rd, Phoenix, AZ 85016 — (602) 933-1000

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence 881149 (AZ)
Registered Dietitian Taxonomy 133V00000X · Licence 164.004197 (IL)
Pediatric Nutrition Registered Dietitian Taxonomy 133VN1004X

Record details

NPI number1336272087
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , RN , MPH
Sole proprietorNo
NPI enumeratedMarch 13, 2007
Last updated in NPPESJune 25, 2019
Mailing address3200 E Camelback Rd Ste 250, Phoenix, AZ 85018-2327

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