NPPES file of Aug 9, 2026

Tammy Zaruba, CPNP

Pediatric Nurse Practitioner · Leominster, MA

Tammy Zaruba, CPNP is a pediatric nurse practitioner with a practice address in Leominster, Massachusetts, and NPI 1639310691, issued on Mar 20, 2009. Check the license (Massachusetts RN274124, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639310691
Name
Tammy Zaruba
Credential
CPNP
Primary taxonomy
Pediatric Nurse Practitioner 363LP0200X
License number
RN274124 MA
Self-reported in NPPES; status is on the state search
Practice location
100 Hospital RD Ste 4, Leominster, MA 01453
Phone
(978) 514-6300
Enumerated
Mar 20, 2009
Record last updated
Oct 3, 2024
Fax
(978) 514-6324
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 Hospital RD Ste 4

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Colbee Daigneault, PA-C, ATCPhysician Assistant1841840006
  2. Amanda Diffin, PA-CPhysician Assistant1710547385

Verify Tammy Zaruba in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN274124
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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Industry payments in 2024: $201.33

13 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 7,169 providers of this specialty with any payment received $330.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tammy Zaruba$201.33
  2. Specialty average$330.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Tammy Zaruba among 1,311 pediatric nurse practitioner records in Massachusetts

Tammy Zaruba, CPNP is one of 1,311 pediatric nurse practitioner records with a practice address in Massachusetts. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 31% of them.

  • NPI issued2009 · 31% of these records are older, 65% newer
  • In a Medicare fileYes · 23% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Nurse Practitioner providers in Massachusetts

There are 1,311 pediatric nurse practitioner records in Massachusetts.

The 8 pediatric nurse practitioner records with the nearest ZIP codes

  1. McCall Barrick, PNPLeominster, MA 014531528473659
  2. Renee Beaulieu, APRNLeominster, MA 014531689989667
  3. Candice Marti, CPNPLeominster, MA 014531174771752
  4. Lynne Monfreda, N.P.Leominster, MA 014531033107396
  5. Meghan Aldrich, NPGroton, MA 014501215209069
  6. Susan Jensen, NPGroton, MA 014501013359900
  7. Jayne Laurin Kinney, NPGroton, MA 014501538158332
  8. Melody NguyenGroton, MA 014501407241201

Common questions

What is Tammy Zaruba, CPNP's NPI number?

Tammy Zaruba, CPNP's National Provider Identifier (NPI) is 1639310691, issued on Mar 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Tammy Zaruba, CPNP located?

The NPPES record lists a practice address at 100 Hospital RD Ste 4, Leominster, MA, 01453. Phone: (978) 514-6300. Providers update this record themselves, so call before visiting.

How can I verify Tammy Zaruba, CPNP's license?

NPPES lists Massachusetts license number RN274124, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.