Dr Mary Tilak PC in Munster, IN
This location of Dr Mary Tilak bills under NPI 1003096900, an organization record issued on Nov 7, 2007 with the primary taxonomy Obesity Medicine (Internal Medicine) Physician. It is one of 2 NPIs registered under this name; each clinician who sees you there has their own NPI and license.
- Legal name
- Dr Mary Tilak PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Obesity Medicine (Internal Medicine) Physician 207RB0002X
- Practice location
- 9410 CALUMET AVE STE 101, Munster, IN 46321
- Phone
- 219-922-8051
- Mailing address
- Chicago, IL
- Enumerated
- Nov 7, 2007
- Record updated
- Apr 24, 2026
- Authorized official
- President (title as filed)
2 clinicians CMS lists with Dr Mary Tilak in Munster
- Cheryl Anthony Worix, MDInternal Medicine Physician1528028693
- Konstantina Gardikiotes, NPFamily Nurse Practitioner1013765056
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the Indiana secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Why is the mailing address in Illinois?
The mailing address in the record (Chicago, IL) is where the organization receives mail. Care is given at the practice location in Munster.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.