IndividualActive
Margaret Day
NPI 1245356930 · Registered Nurse · Boston, MA
Margaret Day is a Registered Nurse provider in Boston, MA (NPI 1245356930).
Provider details
- NPI number
- 1245356930
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 107409 (MA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
1601 Washington St
Boston, MA 02118-1951
Phone: (617) 425-2000
Fax: (617) 425-2043
Street-level locationGet directions
Mailing address
149 Bourne St
Roslindale, MA 02131-2201
Registry dates
- Enumerated
- 2007-03-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Margaret Day's NPI number?
- Margaret Day's National Provider Identifier (NPI) is 1245356930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Day's specialty?
- Margaret Day is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Margaret Day located?
- Margaret Day's practice location on file with NPPES is 1601 Washington St, Boston, MA 02118-1951.
- What is Margaret Day's phone number?
- The practice phone number listed in the NPPES registry for Margaret Day is (617) 425-2000.
- Is Margaret Day's NPI active?
- Yes — Margaret Day's NPI (1245356930) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.