NPPES file of Aug 9, 2026

Thomas Napier, M.D.

Specialist · Springfield, MA

Thomas Napier, M.D. is a specialist with a practice address in Springfield, Massachusetts, and NPI 1750480422, issued on Sep 21, 2006. Check the license (Massachusetts 77215, 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
1750480422
Name
Thomas Napier
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
77215 MA
Self-reported in NPPES; status is on the state search
Practice location
3350 Main St, Springfield, MA 01107
Phone
(413) 794-9175
Enumerated
Sep 21, 2006
Record last updated
Oct 23, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20041228000504); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1985
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3350 Main St

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

  1. Brian Acker, M.D.Specialist1619077369
  2. Syed Ali, MDMedical Oncology Physician1174751267
  3. Jennifer Alli, DNP FNP-BCFamily Nurse Practitioner1255764890
  4. Janivette Alsina, MD, PHDSurgical Oncology Physician1477758043
  5. Armen Asik, M.DMedical Oncology Physician1326066200
  6. Prarthna Bhardwaj, MDHematology & Oncology Physician1487007225

Verify Thomas Napier 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 77215
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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95% fewer Medicare Part D claims than the average specialist in 2024

72 Medicare Part D claims for 39 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Thomas Napier72
  2. Specialty average1,380

Most prescribed

  1. Lidocaine Hcl Viscous24 claims
  2. Prochlorperazine Maleate16 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.

Bills Medicare through one group practice

  1. Pioneer Valley Radiation Oncology PCSpringfield, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Thomas Napier among 1,096 specialist records in Massachusetts

Thomas Napier, M.D. is one of 1,096 specialist records with a practice address in Massachusetts. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 69% newer
  • In a Medicare fileYes · 15% of these records are
  • In the CMS Doctors and Clinicians fileYes · 12% of these records are
  • Graduated1985 · median 1989 among the 128 with a school on file
  • Record last updated2015 · 82% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Massachusetts

There are 1,096 specialist records in Massachusetts.

The 8 specialist records with the nearest ZIP codes

  1. Brian Acker, M.D.Springfield, MA 011071619077369
  2. Karen BalmerSpringfield, MA 011071255743720
  3. Brian Bredvik, M.D.Springfield, MA 011071689660284
  4. Rachel CanevariSpringfield, MA 011071780033407
  5. Gregory Faust, M.D.Springfield, MA 011071164417929
  6. Mark Jackowitz, M.D.Springfield, MA 011071508851411
  7. David March, M.D.Springfield, MA 011071407820798
  8. Philip Moraitis, M.D.Springfield, MA 011071396730172

Common questions

What is Thomas Napier, M.D.'s NPI number?

Thomas Napier, M.D.'s National Provider Identifier (NPI) is 1750480422, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Napier, M.D. located?

The NPPES record lists a practice address at 3350 Main St, Springfield, MA, 01107. Phone: (413) 794-9175. Providers update this record themselves, so call before visiting.

How can I verify Thomas Napier, M.D.'s license?

NPPES lists Massachusetts license number 77215, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas Napier, M.D. prescribe under Medicare Part D?

In 2024, Thomas Napier, M.D. had 72 Medicare Part D claims for 39 beneficiaries; the average among specialist prescribers was 1,380. 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.