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Dr Mary Tilak PC

Obesity Medicine (Internal Medicine) Physician in Munster, IN · enumerated 2007 · authorized official Mary Tilak, President.

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

National Provider Identifier

1003096900

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Registry record

Entity type Organization (Type 2)
Legal business name Dr Mary Tilak PC
Practice address 9410 Calumet Ave Ste 101, Munster, IN, 46321
Phone (219) 922-8051
Fax (219) 922-8608
Enumeration date Nov 7, 2007
Last updated in NPPES Apr 24, 2026

Taxonomy & classification

207RB0002X Obesity Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mary Tilak
Title President
Phone (219) 922-8051

Other identifiers

Identifier Type State Issuer
000000541656 Other IN ANTHEM
90001352 Other IL BC/BS

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 Dr Mary Tilak PC?
The NPI for Dr Mary Tilak PC is 1003096900, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Dr Mary Tilak PC?
NPPES lists Mary Tilak (President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-24.