NPPES file of Aug 9, 2026

Brendan Thomas, M.D.

Dermatology Physician · Aurora, IL

Brendan Thomas, M.D. is a dermatology physician with a practice address in Aurora, Illinois, and NPI 1497989644, issued on May 2, 2009. Check the license (Illinois 036130949, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1497989644
Name
Brendan Thomas
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
036130949 IL
82281 WI
Self-reported in NPPES; status is on the state search
Practice location
2285 Sequoia Dr, Aurora, IL 60506
Phone
(630) 859-6700
Enumerated
May 2, 2009
Record last updated
Jul 19, 2023
Medicaid ID
100237758 WI
Medicare enrollment
Enrolled (PECOS I20230601000390); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2008
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 2285 Sequoia Dr

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

  1. Abhijeet Ahluwalia, PTPhysical Therapist1487172342
  2. Maria Arzadon-Mercado, RN, MS, FNPNurse Practitioner1356448872
  3. Marisa Barnett, APNObstetrics & Gynecology Nurse Practitioner1447444567
  4. Randall Bennett, LCPC,LMFTProfessional Counselor1194835702
  5. Shelley Benson, L.C.S.W.Clinical Social Worker1346515715
  6. Linda Benton, LCSW, CADCClinical Social Worker1881675023

Verify Brendan Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036130949
    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
Open the Illinois license search

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51% more Medicare Part D claims than the average dermatology physician in 2024

1,201 Medicare Part D claims for 424 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Brendan Thomas1,201
  2. Specialty average797

Most prescribed

  1. Fluorouracil100 claims
  2. Triamcinolone Acetonide99 claims
  3. Mometasone Furoate97 claims
  4. Doxycycline Hyclate94 claims
  5. Metronidazole68 claims
  6. Ketoconazole58 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: $36.10

2 payments; by number, the most common kind was food and beverage; the largest payer was Arcutis Biotherapeutics, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brendan Thomas$36.10
  2. Specialty average$8,544.61

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

Bills Medicare through 2 group practices

  1. Advocate Health And Hospitals CorporationOswego, IL
  2. Aurora Medical Group, Inc.Milwaukee, WI

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

Brendan Thomas among 647 dermatology physician records in Illinois

Brendan Thomas, M.D. is one of 647 dermatology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 49% of them.

  • NPI issued2009 · 49% of these records are older, 48% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2008 · median 2008 among the 440 with a school on file
  • Record last updated2023 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Illinois

There are 647 dermatology physician records in Illinois.

The 8 dermatology physician records with the nearest ZIP codes

  1. Tanya Bulj, M.D.Aurora, IL 605061316144892
  2. Matthew Evans, MDAurora, IL 605061144246828
  3. Fred Kemp, MDAurora, IL 605061780603118
  4. Arjun Dayal, M.D.Aurora, IL 605041093246621
  5. Catherine Dudley, MDAurora, IL 605041912923095
  6. Zachary Solomon, MDAurora, IL 605041861954398
  7. Sarah Johnson, P.A.Downers Grove, IL 605151639317647
  8. Lalitha Reddy, MDDowners Grove, IL 605161053306597

Common questions

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

Brendan Thomas, M.D.'s National Provider Identifier (NPI) is 1497989644, issued on May 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Brendan Thomas, M.D. located?

The NPPES record lists a practice address at 2285 Sequoia Dr, Aurora, IL, 60506. Phone: (630) 859-6700. Providers update this record themselves, so call before visiting.

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

NPPES lists Illinois license number 036130949, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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

In 2024, Brendan Thomas, M.D. had 1,201 Medicare Part D claims for 424 beneficiaries; the average among dermatology physician prescribers was 797. 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.