Margaret Breen, RN
NPI 1659663011 · Psychiatric/Mental Health Registered Nurse · Littleton, CO
Margaret Breen, RN is a Psychiatric/Mental Health Registered Nurse provider in Littleton, CO (NPI 1659663011).
Provider details
- NPI number
- 1659663011
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 62628 (CO)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2011-05-04
- Last updated
- 2011-05-04
Frequently asked questions
- What is Margaret Breen's NPI number?
- Margaret Breen's National Provider Identifier (NPI) is 1659663011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Breen's specialty?
- Margaret Breen is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Margaret Breen located?
- Margaret Breen's practice location on file with NPPES is 6507 S Santa Fe Dr, Littleton, CO 80120-2910.
- What is Margaret Breen's phone number?
- The practice phone number listed in the NPPES registry for Margaret Breen is (303) 730-0797.
- Is Margaret Breen's NPI active?
- Yes — Margaret Breen's NPI (1659663011) is active in the NPPES registry as of the last update on 2011-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.