KAREN R BALESTRIERI (NP) – Pediatric Nurse Practitioner, NPI 1437148236

KAREN R BALESTRIERI (NP) is a healthcare provider. based in Westford, Massachusetts. specializing in NURSE PRACTITIONER. They hold the professional credentials NP. They hold a License No. 237567 (MA). The NPI Number for KAREN R BALESTRIERI (NP) is 1437148236

Main info

Female
25 Years Of Experience
Accepts Medicare Assignment
Name
KAREN R BALESTRIERI (NP)
NPI
1437148236
Phone
(978) 577-0437
Address
133 LITTLETON RD
Enumeration Date
14 October 2005
Last Update Date
20 December 2021

Doctor Profile

Medical School Name
OTHER
Secondary Phone
9785770437
Graduation Year
2001 (25 years ago)
PAC ID
5597929919
Group Practice PAC ID
0143448514
Professional Enrollment ID
I20140828000214
Address ID
MA018863198WE133XXRDXX302
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

8,972 NURSE PRACTITIONER in MA

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Provider Addresses for KAREN R BALESTRIERI (NP)

  • Emerson Hospital Health Center, 133, Littleton Road, Westford, Middlesex County, Massachusetts, 01886-3139, United States

    SUITE 101

    WESTFORD, MA 018863198

    Phone: (978) 577-0437

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2014-08-28

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20140828000214INurse PractitionerMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 01886)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0143448514View full group profile
NameSpecialtyState
Nurse PractitionerMA
Nurse PractitionerMA
Pediatric MedicineMA
A L L E R G Y/ I M M U N O L O G YMA
Nurse PractitionerMA
Pediatric MedicineMA
Nurse PractitionerMA
-MA
Nurse PractitionerMA
-MA

Reviews

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Frequently asked questions

Can I verify KAREN R BALESTRIERI (NP) with an NPI only?
You can start verification with NPI 1437148236 for KAREN R BALESTRIERI (NP), then check state licensing separately.
Can I rely on KAREN R BALESTRIERI (NP) being an active provider?
As of the registry snapshot, KAREN R BALESTRIERI (NP) is marked active.
What is KAREN R BALESTRIERI (NP)'s primary classification?
Pediatric Nurse Practitioner is the headline specialty for KAREN R BALESTRIERI (NP) here. Clinical services aligned with this taxonomy classification.
What address line appears for KAREN R BALESTRIERI (NP)?
KAREN R BALESTRIERI (NP)'s geographic hint is Westford, Massachusetts in our summary view.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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