NPPES file of Aug 9, 2026

William R. Trahan, D.M.D, M.S.D

Prosthodontics · St Charles, IL

William R. Trahan, D.M.D, M.S.D is a prosthodontics with a practice address in St Charles, Illinois, and NPI 1881949923, issued on Jul 16, 2012. Check the license (Illinois 021.002698, as entered in NPPES) with the Illinois 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
1881949923
Name
William R. Trahan
Credential
D.M.D, M.S.D
Primary taxonomy
Prosthodontics 1223P0700X
License numbers
021.002698 IL
019.030154 IL
Self-reported in NPPES; status is on the state search
Practice location
525 Tyler RD, St Charles, IL 60174
Phone
(630) 377-4677
Enumerated
Jul 16, 2012
Record last updated
Jan 23, 2017 (not updated in 9 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.
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Also registered at 525 Tyler RD

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

  1. Lewis Blevins, DCChiropractor1841508637
  2. Tricia Crosby, DDS,MSPeriodontics1912152034
  3. Eric Hestrup, D.C.Chiropractor1861709578
  4. Brent Huff, LATAthletic Trainer1497952451
  5. Robert Long, D.O.Family Medicine Physician1083985154
  6. Sheryar Masud, D.C.Chiropractor1831140573

Verify William R. Trahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 021.002698    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 Illinois license search

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5.3 times the Medicare Part D claims of the average prosthodontics in 2024

476 Medicare Part D claims for 224 beneficiaries, against an average of 90 among the 1,779 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. William Trahan476
  2. Specialty average90

Most prescribed

  1. Amoxicillin213 claims
  2. Ibuprofen172 claims
  3. Metronidazole31 claims
  4. Cefdinir24 claims
  5. Zolpidem Tartrate13 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: $964.96

8 payments; by number, the most common kind was food and beverage; the largest payer was Henry Schein, Inc. The 1,408 providers of this specialty with any payment received $3,465.28 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Trahan$964.96
  2. Specialty average$3,465.28

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

Prosthodontics providers in Illinois

There are 78 prosthodontics records in Illinois.

All 78 in Illinois → Every provider in St Charles →

Other prosthodontics records in Illinois

  1. Ghassan AbboudChicago, IL1508854910
  2. Anil Agarwal, D.D.SChicago, IL1790940849
  3. Leila Ahmadian Khoshe MehrChicago, IL1619497021
  4. Suzie Ahn, DDSChicago, IL1649688607
  5. Rula Amarin, DDS, MSEdwardsville, IL1083285704
  6. Celin Arce Urena, DDS, MS, FACP, CDTFrankfort, IL1881126910
  7. Faisel AshtewiChicago, IL1801100391
  8. Donald Bezdek, DDSGreat Lakes, IL1871559633
  9. Peter Bidny, D.D.S.North Chicago, IL1467464222
  10. Tobin Boyd, DMDAlton, IL1770591034

Common questions

What is William R. Trahan, D.M.D, M.S.D's NPI number?

William R. Trahan, D.M.D, M.S.D's National Provider Identifier (NPI) is 1881949923, issued on Jul 16, 2012. An NPI identifies a provider in billing; it is not a license.

Where is William R. Trahan, D.M.D, M.S.D located?

The NPPES record lists a practice address at 525 Tyler RD, St Charles, IL, 60174. Phone: (630) 377-4677. Providers update this record themselves, so call before visiting.

How can I verify William R. Trahan, D.M.D, M.S.D's license?

NPPES lists Illinois license number 021.002698, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does William R. Trahan, D.M.D, M.S.D prescribe under Medicare Part D?

In 2024, William R. Trahan, D.M.D, M.S.D had 476 Medicare Part D claims for 224 beneficiaries; the average among prosthodontics prescribers was 90. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.