Nancy Hellman, RNCS
NPI 1720145394 · Psychiatric/Mental Health Clinical Nurse Specialist · Somerville, MA
Enrolled with Medicare as Practitioner - Certified Clinical Nurse Specialist (cns) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Hellman, RNCS is a Psychiatric/Mental Health Clinical Nurse Specialist provider in Somerville, MA (NPI 1720145394).
Provider details
- NPI number
- 1720145394
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RNCS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 126215 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-01-03
- Last updated
- 2018-05-23
Frequently asked questions
- What is Nancy Hellman's NPI number?
- Nancy Hellman's National Provider Identifier (NPI) is 1720145394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Hellman's specialty?
- Nancy Hellman is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Hellman located?
- Nancy Hellman's practice location on file with NPPES is 26 Central St, Somerville, MA 02143.
- What is Nancy Hellman's phone number?
- The practice phone number listed in the NPPES registry for Nancy Hellman is (617) 575-5570.
- Does Nancy Hellman accept Medicare?
- Nancy Hellman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Hellman's NPI active?
- Yes — Nancy Hellman's NPI (1720145394) is active in the NPPES registry as of the last update on 2018-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.