Karen Balestrieri, NP
NPI 1437148236 · Pediatric Nurse Practitioner · Westford, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Balestrieri, NP is a Pediatric Nurse Practitioner provider in Westford, MA (NPI 1437148236).
Provider details
- NPI number
- 1437148236
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 237567 (MA)
Specialties & taxonomies
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
20 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
- 2005-10-14
- Last updated
- 2021-12-20
- Certified
- 2021-12-20
Frequently asked questions
- What is Karen Balestrieri's NPI number?
- Karen Balestrieri's National Provider Identifier (NPI) is 1437148236, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Balestrieri's specialty?
- Karen Balestrieri is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Balestrieri located?
- Karen Balestrieri's practice location on file with NPPES is 133 Littleton Rd, Westford, MA 01886-3198.
- What is Karen Balestrieri's phone number?
- The practice phone number listed in the NPPES registry for Karen Balestrieri is (978) 577-0437.
- Does Karen Balestrieri accept Medicare?
- Karen Balestrieri is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Balestrieri's NPI active?
- Yes — Karen Balestrieri's NPI (1437148236) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.