NPPES file of Aug 9, 2026

Debra A. Tomaszewski, N.P.

Primary Care Nurse Practitioner · Springfield, MA

Debra A. Tomaszewski, N.P. is a primary care nurse practitioner with a practice address in Springfield, Massachusetts, and NPI 1437570819, issued on Jan 2, 2014. Check the license (Massachusetts RN169335, 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
1437570819
Name
Debra A. Tomaszewski
Credential
N.P.
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
License number
RN169335 MA
Self-reported in NPPES; status is on the state search
Practice location
140 High Street, Springfield, MA 01105
Phone
(413) 794-2511
Enumerated
Jan 2, 2014
Record last updated
Aug 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(413) 794-8428
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 140 High Street

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

  1. Charlotte Beers, MDPediatrics Physician1538789623
  2. Peter Blier, MDPediatrics Physician1871557447
  3. Beth Brown, M.D.Pediatrics Physician1750342705
  4. Nicolas Cal, D.OGastroenterology Physician1588081699
  5. Stephanie Carlin, D.O.Pediatrics Physician1104884766
  6. Adam Kasper, M.DPediatrics Physician1508209123

Verify Debra A. Tomaszewski 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 RN169335
    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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83% fewer Medicare Part D claims than the average primary care nurse practitioner in 2024

249 Medicare Part D claims for 164 beneficiaries, against an average of 1,492 among the 5,992 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Debra Tomaszewski249
  2. Specialty average1,492

Most prescribed

  1. Gavilyte-G83 claims
  2. Omeprazole43 claims
  3. Sucralfate22 claims
  4. Peg 3350-Electrolyte17 claims
  5. Peg-3350 And Electrolytes15 claims
  6. Famotidine13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Debra A. Tomaszewski among 376 primary care nurse practitioner records in Massachusetts

Debra A. Tomaszewski, N.P. is one of 376 primary care nurse practitioner records with a practice address in Massachusetts. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 31% of them.

  • NPI issued2014 · 31% of these records are older, 65% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2020 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Primary Care Nurse Practitioner providers in Massachusetts

There are 376 primary care nurse practitioner records in Massachusetts.

The 8 primary care nurse practitioner records with the nearest ZIP codes

  1. Sara Friedman, NPSpringfield, MA 011041356829121
  2. Ashley Rosati, CNPSpringfield, MA 011041447611041
  3. Tammy Sears-Langevin, APRN,NNP-BC,CPNPSpringfield, MA 011041255633665
  4. Katherine Waterman, N.P-CSpringfield, MA 011041962767905
  5. Dinara Salitsky, NURSE PRACTITIONERSpringfield, MA 011031366060360
  6. Sanyu Walker, APRNSpringfield, MA 011071740613744
  7. Maria Diaz, FNP-BCSpringfield, MA 011081235558131
  8. Premila Nair, FNPSpringfield, MA 011081912962218

Common questions

What is Debra A. Tomaszewski, N.P.'s NPI number?

Debra A. Tomaszewski, N.P.'s National Provider Identifier (NPI) is 1437570819, issued on Jan 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Debra A. Tomaszewski, N.P. located?

The NPPES record lists a practice address at 140 High Street, Springfield, MA, 01105. Phone: (413) 794-2511. Providers update this record themselves, so call before visiting.

How can I verify Debra A. Tomaszewski, N.P.'s license?

NPPES lists Massachusetts license number RN169335, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Debra A. Tomaszewski, N.P. prescribe under Medicare Part D?

In 2024, Debra A. Tomaszewski, N.P. had 249 Medicare Part D claims for 164 beneficiaries; the average among primary care nurse practitioner prescribers was 1,492. Part D covers Medicare prescriptions 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.