Erin Brennan, MS, RDN, LDN
NPI 1386378511 · Registered Dietitian · Washington, DC
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Brennan, MS, RDN, LDN is a Registered Dietitian provider in Washington, DC (NPI 1386378511).
Provider details
- NPI number
- 1386378511
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS, RDN, LDN
- Sex
- Female
- Sole proprietor
- No
- License
- DN007507 (PA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 601 F St NwWashington, DC 20004-1605Phone: (202) 393-8432
- 1612 U St NwWashington, DC 20009-6221Phone: (202) 939-2577
Registry dates
- Enumerated
- 2022-07-13
- Last updated
- 2022-07-15
- Certified
- 2022-07-15
Frequently asked questions
- What is Erin Brennan's NPI number?
- Erin Brennan's National Provider Identifier (NPI) is 1386378511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Brennan's specialty?
- Erin Brennan is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Erin Brennan located?
- Erin Brennan's practice location on file with NPPES is 445 K St Nw, Washington, DC 20001-2530.
- What is Erin Brennan's phone number?
- The practice phone number listed in the NPPES registry for Erin Brennan is (202) 289-8432.
- Does Erin Brennan accept Medicare?
- Erin Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Brennan's NPI active?
- Yes — Erin Brennan's NPI (1386378511) is active in the NPPES registry as of the last update on 2022-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.