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

Erin Elizabeth Brennan, MS, RDN, LDN

Individual provider Registered Dietitian · NPI 1386378511

Erin Elizabeth Brennan, MS, RDN, LDN is a Registered Dietitian in Washington, District of Columbia. Works from 3 locations. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2022
What do these letters mean?
MS — Master of Science
A graduate science degree.
RDN — Registered Dietitian Nutritionist
The current title for a registered dietitian.
LDN — Licensed Dietitian Nutritionist
A state-licensed dietitian nutritionist.

See every abbreviation used in this directory →

Practice location Address checks out

445 K St NW
Washington, DC 20001-2530
Phone: (202) 289-8432
Show map & directions

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

Additional practice locations (2)

  • 601 F St Nw, Washington, DC 20004-1605 — (202) 393-8432
  • 1612 U St Nw, Washington, DC 20009-6221 — (202) 939-2577

Specialties & licences

Registered Dietitian (primary) Taxonomy 133V00000X · Licence DN007507 (PA)

Record details

NPI number1386378511
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RDN , LDN
Sole proprietorNo
NPI enumeratedJuly 13, 2022
Last updated in NPPESJuly 15, 2022
Certification dateJuly 15, 2022

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