NPPES file of Aug 9, 2026

Sean David McWilliams, MD

Phlebology Physician · Wheaton, IL

Sean David McWilliams, MD is a phlebology physician with a practice address in Wheaton, Illinois, and NPI 1356323398, issued on Nov 16, 2005. Check the license (Illinois 036096961, 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
1356323398
Name
Sean David McWilliams
Credential
MD
Primary taxonomy
Phlebology Physician 202K00000X
License numbers
036096961 IL
01062181A IN
Self-reported in NPPES; status is on the state search
Practice location
180 Danada SQ W, Wheaton, IL 60189
Phone
(630) 474-2600
Enumerated
Nov 16, 2005
Record last updated
Apr 25, 2024
Fax
(630) 474-2601
Medicare enrollment
Enrolled (PECOS I20040601000559); accepts Medicare assignment
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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Verify Sean David McWilliams 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 036096961
    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
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88% fewer Medicare Part D claims than the average phlebology physician in 2024

23 Medicare Part D claims, against an average of 187 among the 80 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Sean McWilliams23
  2. Specialty average187

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: $19,480.09

9 payments; by number, the most common kind was food and beverage; the largest payer was AngioDynamics, Inc. The 81 providers of this specialty with any payment received $1,201.67 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sean McWilliams$19,480
  2. Specialty average$1,202

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

Phlebology Physician providers in Illinois

There are 21 phlebology physician records in Illinois.

Other phlebology physician records in Illinois

  1. Kathryn Bohn, M.D.Bloomington, IL1194751156
  2. Vera Boutros, M.D.Arlington Heights, IL1902045990
  3. Tracy Brito, M.D.Rockford, IL1285669895
  4. Peter Brukasz, M.D.Palos Hills, IL1396728978
  5. Richard Castillo, M.D.Bloomington, IL1649207960
  6. John Federbusch, M.D.Chicago, IL1235261264
  7. Mark Forrestal, MDArlington Heights, IL1578552246
  8. Kortesha Jones, PHLEBOTOMISTKankakee, IL1063193753
  9. Kevin Kern, DOGeneva, IL1144258781
  10. Thomas Lutz, MDElgin, IL1174623664

Common questions

What is Sean David McWilliams, MD's NPI number?

Sean David McWilliams, MD's National Provider Identifier (NPI) is 1356323398, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sean David McWilliams, MD located?

The NPPES record lists a practice address at 180 Danada SQ W, Wheaton, IL, 60189. Phone: (630) 474-2600. Providers update this record themselves, so call before visiting.

How can I verify Sean David McWilliams, MD's license?

NPPES lists Illinois license number 036096961, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Sean David McWilliams, MD prescribe under Medicare Part D?

In 2024, Sean David McWilliams, MD had 23 Medicare Part D claims; the average among phlebology physician prescribers was 187. 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.