Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David S. Pezen, M.D., S.C.

Q: What type of organization is David S. Pezen, M.D., S.C.?

David S. Pezen, M.D., S.C. is registered in NPPES as a Dermatology Physician (its primary provider taxonomy).

Dermatology Physician in Elmhurst, IL · enumerated 2008 · authorized official David Pezen, President.

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

National Provider Identifier

1295992295

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Registry record

Entity type Organization (Type 2)

Legal business name David S. Pezen, M.D., S.C.

Practice address 360 W Butterfield Rd, Suite #240, Elmhurst, IL, 60126

Phone (630) 833-3222

Fax (630) 833-3277

Enumeration date May 19, 2008

Last updated in NPPES May 19, 2008

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 042616683 (IL) Primary

Authorized official

Name David Pezen

Title President

Phone (630) 833-3222

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 type of organization is David S. Pezen, M.D., S.C.?

David S. Pezen, M.D., S.C. is registered in NPPES as a Dermatology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-19.