Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Leslie Erin Bernstein, M.D.

Dermatology Physician in Arlington Heights, IL · enumerated 2007.

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

National Provider Identifier

1104048776

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Registry record

Entity type Individual (Type 1)

Name Dr. Leslie Erin Bernstein

Credential M.D.

Sex Female

Practice address Arlington Heights, IL, 60004

Phone (847) 618-0326

Fax (847) 618-9506

Enumeration date May 3, 2007

Last updated in NPPES May 7, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 22636 (ND) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 81350 (MN) Secondary

282N00000X General Acute Care Hospital Hospitals · License 036115779 (IL) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036-115779 (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
036115779	Other	IL	STATE LICENSE

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 Leslie Bernstein?

Leslie Bernstein 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 2026-05-07.