NPPES file of Aug 9, 2026

Catherine M. Dudley, MD

Dermatology Physician · Aurora, IL

Catherine M. Dudley, MD is a dermatology physician with a practice address in Aurora, Illinois, and NPI 1912923095, issued on Jul 14, 2006. Check the license (Illinois 036-074033, 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
1912923095
Name
Catherine M. Dudley
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
036-074033 IL
Self-reported in NPPES; status is on the state search
Practice location
4100 Healthway Dr, Aurora, IL 60504
Phone
(630) 851-3105
Enumerated
Jul 14, 2006
Record last updated
Jun 17, 2025
Medicaid ID
036074033 IL
Medicare enrollment
Enrolled (PECOS I20100907000597); may accept Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 1985
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 4100 Healthway Dr

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

  1. Huma Abbas, M.D.Psychiatry Physician1609039163
  2. Michael Agro, DPT, PTPhysical Therapist1104516343
  3. Sara Bealert, PAMedical Physician Assistant1134115330
  4. Fatimah BhuiyanBehavior Technician1083541478
  5. Elizabeth Brandon, DOFamily Medicine Physician1659302347
  6. Autumn Bryant, M.A., CCC-SLP/LSpeech-Language Pathologist1063829661

Verify Catherine M. Dudley 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 036-074033
    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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40% fewer Medicare Part D claims than the average dermatology physician in 2024

476 Medicare Part D claims for 232 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Catherine Dudley476
  2. Specialty average797

Most prescribed

  1. Hydrocortisone76 claims
  2. Triamcinolone Acetonide56 claims
  3. Betamethasone Diprop Augmented53 claims
  4. Clobetasol Propionate45 claims
  5. Doxycycline Hyclate22 claims
  6. Fluorouracil19 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.

Catherine M. Dudley among 647 dermatology physician records in Illinois

Catherine M. Dudley, MD 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 65% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1985 · median 2008 among the 440 with a school on file
  • Record last updated2025 · 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. Arjun Dayal, M.D.Aurora, IL 605041093246621
  2. Zachary Solomon, MDAurora, IL 605041861954398
  3. Tanya Bulj, M.D.Aurora, IL 605061316144892
  4. Matthew Evans, MDAurora, IL 605061144246828
  5. Fred Kemp, MDAurora, IL 605061780603118
  6. Brendan Thomas, M.D.Aurora, IL 605061497989644
  7. Sarah Johnson, P.A.Downers Grove, IL 605151639317647
  8. Lalitha Reddy, MDDowners Grove, IL 605161053306597

Common questions

What is Catherine M. Dudley, MD's NPI number?

Catherine M. Dudley, MD's National Provider Identifier (NPI) is 1912923095, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Catherine M. Dudley, MD located?

The NPPES record lists a practice address at 4100 Healthway Dr, Aurora, IL, 60504. Phone: (630) 851-3105. Providers update this record themselves, so call before visiting.

How can I verify Catherine M. Dudley, MD's license?

NPPES lists Illinois license number 036-074033, 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 Catherine M. Dudley, MD prescribe under Medicare Part D?

In 2024, Catherine M. Dudley, MD had 476 Medicare Part D claims for 232 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.