Karen Brennan, NC, BCHN, MSW
NPI 1528589322 · Nutrition Education Nutritionist · Castle Rock, CO
Karen Brennan, NC, BCHN, MSW is a Nutrition Education Nutritionist provider in Castle Rock, CO (NPI 1528589322).
Provider details
- NPI number
- 1528589322
- Entity type
- Individual
- Primary specialty
- Nutrition Education NutritionistDietary & Nutritional Service Providers
- Credential
- NC, BCHN, MSW
- Sex
- Female
- Sole proprietor
- Yes
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
9 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2017-06-30
- Last updated
- 2022-07-21
Frequently asked questions
- What is Karen Brennan's NPI number?
- Karen Brennan's National Provider Identifier (NPI) is 1528589322, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Brennan's specialty?
- Karen Brennan is listed in the NPPES registry with a primary specialty of Nutrition Education Nutritionist (Dietary & Nutritional Service Providers).
- Where is Karen Brennan located?
- Karen Brennan's practice location on file with NPPES is 4131 Bell Mountain Dr, Castle Rock, CO 80104-7709.
- What is Karen Brennan's phone number?
- The practice phone number listed in the NPPES registry for Karen Brennan is (303) 522-0381.
- Is Karen Brennan's NPI active?
- Yes — Karen Brennan's NPI (1528589322) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.