Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Catherine M Dudley, MD
Dermatology Physician in Aurora, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912923095
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Registry record
Entity type Individual (Type 1)
Name Catherine M Dudley
Credential MD
Sex Female
Practice address 4100 Healthway Dr, Aurora, IL, 60504
Phone (630) 851-3105
Enumeration date Jul 14, 2006
Last updated in NPPES Jun 17, 2025
Taxonomy & licenses
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036-074033 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 036074033 | Medicaid | IL | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Catherine Dudley?
Catherine Dudley is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Sunil Malkani Internal Medicine Physician · Aurora, IL NPI 1538153655 Sara Bealert Medical Physician Assistant · Aurora, IL NPI 1134115330 Elizabeth Brandon Family Medicine Physician · Aurora, IL NPI 1659302347 Roman Dreyer Internal Medicine Physician · Aurora, IL NPI 1376576793 Lorene Eckberg Pediatrics Physician · Aurora, IL NPI 1831122043 Robert Labak Clinical Social Worker · Aurora, IL NPI 1548370125 Ronald Mercante Clinical Social Worker · Aurora, IL NPI 1467562850 Karen Lee Internal Medicine Physician · Aurora, IL NPI 1417022351
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-17.