NPPES file of Aug 9, 2026

Thomas James Gillen, DMD, MS

Endodontics · Greensburg, PA

Thomas James Gillen, DMD, MS is an endodontics with a practice address in Greensburg, Pennsylvania, and NPI 1710990072, issued on Aug 15, 2006. Check the license (Pennsylvania DS035413, as entered in NPPES) with the Pennsylvania 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
1710990072
Name
Thomas James Gillen
Credential
DMD, MS
Primary taxonomy
Endodontics 1223E0200X
License number
DS035413 PA
Self-reported in NPPES; status is on the state search
Practice location
225 Humphrey RD, Greensburg, PA 15601
Phone
(724) 834-1644
Enumerated
Aug 15, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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.
Download card Updates feed

Also registered at 225 Humphrey RD

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

  1. Helen Connors, MAPsychologist1154433126
  2. Vincent Dimalta, ED.D.Psychologist1699887620
  3. Therese Fitzpatrick, LPCProfessional Counselor1396857371
  4. Diane McHirella, LPCProfessional Counselor1518079425
  5. Courtney Minerd, PH.D.Counseling Psychologist1518367499
  6. Jennifer Oldenburg, PH.D.Clinical Psychologist1376655340

Verify Thomas James Gillen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license DS035413
    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 Pennsylvania 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

11% fewer Medicare Part D claims than the average endodontics in 2024

108 Medicare Part D claims for 67 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D.

  1. Thomas Gillen108
  2. Specialty average121

Most prescribed

  1. Amoxicillin-Clavulanate Potass51 claims
  2. Chlorhexidine Gluconate18 claims
  3. Methylprednisolone15 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.

Industry payments in 2024: $19.95

1 payment: gift; the largest payer was Ultradent Products Inc. The 2,057 providers of this specialty with any payment received $49,739.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Gillen$20
  2. Specialty average$49,740

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

Thomas James Gillen among 246 endodontics records in Pennsylvania

Thomas James Gillen, DMD, MS is one of 246 endodontics records with a practice address in Pennsylvania. 68% 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 under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 63% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2007 · 78% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in Pennsylvania

There are 246 endodontics records in Pennsylvania.

The 8 endodontics records with the nearest ZIP codes

  1. Heidi Ray, DMDGreensburg, PA 156011679825459
  2. Michael Chaney, D.D.S.Somerset, PA 155011588874416
  3. Jerome George, DMDMc Murray, PA 153171730232885
  4. Albert Tomsic, DMDCanonsburg, PA 153171376658666
  5. Joseph Wateska, D.M.D. MSCanonsburg, PA 153171578608543
  6. Reid Elattrache, DMDWashington, PA 153011255485942
  7. Tuyen Pham, DMD, MSWashington, PA 153011366637878
  8. Philip Michaelson, DMDPittsburgh, PA 152611467559021

Common questions

What is Thomas James Gillen, DMD, MS's NPI number?

Thomas James Gillen, DMD, MS's National Provider Identifier (NPI) is 1710990072, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas James Gillen, DMD, MS located?

The NPPES record lists a practice address at 225 Humphrey RD, Greensburg, PA, 15601. Phone: (724) 834-1644. Providers update this record themselves, so call before visiting.

How can I verify Thomas James Gillen, DMD, MS's license?

NPPES lists Pennsylvania license number DS035413, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas James Gillen, DMD, MS prescribe under Medicare Part D?

In 2024, Thomas James Gillen, DMD, MS had 108 Medicare Part D claims for 67 beneficiaries; the average among endodontics prescribers was 121. 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.