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Grossweiner & Blaszak, P.C.

Dermatology Physician in Naperville, IL · enumerated 2006 · authorized official Laura Heimburger, Business Manager.

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

National Provider Identifier

1194789990

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Registry record

Entity type Organization (Type 2)
Legal business name Grossweiner & Blaszak, P.C.
Practice address 1220 Hobson Rd Ste 116, Naperville, IL, 60540
Phone (630) 355-6660
Fax (630) 527-2856
Enumeration date Apr 17, 2006
Last updated in NPPES Jul 18, 2022

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Laura Heimburger
Title Business Manager
Phone (630) 355-6660

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.

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Frequently asked questions

What is the NPI number for Grossweiner & Blaszak, P.C.?
The NPI for Grossweiner & Blaszak, P.C. is 1194789990, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Grossweiner & Blaszak, P.C.?
NPPES lists Laura Heimburger (Business Manager) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-18.