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

MS. Nancy M Lannan, RD, LDN

Individual provider Registered Dietitian · NPI 1518081009

MS. Nancy M Lannan, RD, LDN is a Registered Dietitian in Downers Grove, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
Specialties on file
2
What do these letters mean?
RD — Registered Dietitian
A credentialed nutrition professional.
LDN — Licensed Dietitian Nutritionist
A state-licensed dietitian nutritionist.

See every abbreviation used in this directory →

Practice location Address checks out

2901 Finley Rd Ste 102
Downers Grove, IL 60515-1041
Phone: (630) 495-6800
Fax: (630) 495-8200
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Nutrition Registered Dietitian (primary) Taxonomy 133VN1004X (IL)
Registered Dietitian Taxonomy 133V00000X (IL)

Record details

NPI number1518081009
Entity typeIndividual (Type 1)
GenderFemale
Credentials RD , LDN
Sole proprietorNo
NPI enumeratedMarch 19, 2007
Last updated in NPPESSeptember 11, 2025

Other providers in Downers Grove