Judith Williams, APRN
NPI 1437305828 · Family Nurse Practitioner · Cambridge, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Judith Williams, APRN is a Family Nurse Practitioner provider in Cambridge, MA (NPI 1437305828).
Provider details
- NPI number
- 1437305828
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- RN275861 (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
17 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
- 2008-08-18
- Last updated
- 2026-05-13
- Certified
- 2026-05-13
Frequently asked questions
- What is Judith Williams's NPI number?
- Judith Williams's National Provider Identifier (NPI) is 1437305828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Judith Williams's specialty?
- Judith Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Judith Williams located?
- Judith Williams's practice location on file with NPPES is 1493 Cambridge St, Cambridge, MA 02139-1099.
- What is Judith Williams's phone number?
- The practice phone number listed in the NPPES registry for Judith Williams is (617) 999-0973.
- Does Judith Williams accept Medicare?
- Judith Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Judith Williams's NPI active?
- Yes — Judith Williams's NPI (1437305828) is active in the NPPES registry as of the last update on 2026-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.