Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Sarah Jeanette Thelen, MS, RD, LDN

Individual provider Registered Dietitian · NPI 1770838823

Sarah Jeanette Thelen, MS, RD, LDN is a Registered Dietitian in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2012.

Licensed in
IL
In the registry since
2012
What do these letters mean?
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.
LDN — Licensed Dietitian Nutritionist
A state-licensed dietitian nutritionist.

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Practice location Address checks out

2525 S Michigan Ave Ste 250
Chicago, IL 60616-2333
Phone: (312) 567-7598
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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 164005724 (IL)

Record details

NPI number1770838823
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD , LDN
Sole proprietorNo
NPI enumeratedJuly 16, 2012
Last updated in NPPESJuly 16, 2012

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