Helen Day, NP
NPI 1225854987 · Psychiatric/Mental Health Nurse Practitioner · Cambridge, MA
Helen Day, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Cambridge, MA (NPI 1225854987).
Provider details
- NPI number
- 1225854987
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN10036091 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2024-11-27
- Last updated
- 2026-02-16
- Certified
- 2026-02-16
Frequently asked questions
- What is Helen Day's NPI number?
- Helen Day's National Provider Identifier (NPI) is 1225854987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Day's specialty?
- Helen Day is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Helen Day located?
- Helen Day's practice location on file with NPPES is 163 Gore St, Cambridge, MA 02141-1119.
- What is Helen Day's phone number?
- The practice phone number listed in the NPPES registry for Helen Day is (617) 575-5850.
- Is Helen Day's NPI active?
- Yes — Helen Day's NPI (1225854987) is active in the NPPES registry as of the last update on 2026-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.