Mararet Duffy, RN, BSN,CDE
NPI 1740473388 · Diabetes Educator Registered Nurse · Brockton, MA
Mararet Duffy, RN, BSN,CDE is a Diabetes Educator Registered Nurse provider in Brockton, MA (NPI 1740473388).
Provider details
- NPI number
- 1740473388
- Entity type
- Individual
- Primary specialty
- Diabetes Educator Registered NurseNursing Service Providers
- Credential
- RN, BSN,CDE
- Sex
- Female
- Sole proprietor
- No
- License
- 204652 (MA)
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
18 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
- 2007-08-27
- Last updated
- 2007-08-27
Frequently asked questions
- What is Mararet Duffy's NPI number?
- Mararet Duffy's National Provider Identifier (NPI) is 1740473388, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mararet Duffy's specialty?
- Mararet Duffy is listed in the NPPES registry with a primary specialty of Diabetes Educator Registered Nurse (Nursing Service Providers).
- Where is Mararet Duffy located?
- Mararet Duffy's practice location on file with NPPES is 680 Centre St, Brockton, MA 02302-3308.
- What is Mararet Duffy's phone number?
- The practice phone number listed in the NPPES registry for Mararet Duffy is (508) 941-7000.
- Is Mararet Duffy's NPI active?
- Yes — Mararet Duffy's NPI (1740473388) is active in the NPPES registry as of the last update on 2007-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.