NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aerlyn G Dawn, M.D.

Dermatology Physician in Exton, PA · enumerated 2006 · practices at Dermatology and Skin Surgery Center, PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1740349182

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Registry record

Entity type Individual (Type 1)
Name Dr. Aerlyn G Dawn
Credential M.D.
Sex Male
Practice address 501 Gordon Dr, Exton, PA, 19341
Fax (610) 594-6810
Enumeration date Dec 8, 2006
Last updated in NPPES May 8, 2021

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD438416 (PA) Secondary
207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License MD438416 (PA) Secondary
207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License D0064506 (MD) Secondary
207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License MD438416 (PA) Secondary
207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License D0064506 (MD) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License D64506 (MD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Aerlyn Dawn?
Aerlyn Dawn 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.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-08.