NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

St Margaret Mercy Healthcare Centers

Family Medicine Physician in Dyer, IN · enumerated 2006 · authorized official Thomas Gryzbek, President.

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

National Provider Identifier

1972682581

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name St Margaret Mercy Healthcare Centers
Other name <Unavail>
Practice address 840 Richard Rd, Suite 3, Dyer, IN, 46311
Phone (219) 322-1450
Fax (219) 322-8260
Enumeration date Nov 3, 2006
Last updated in NPPES Jun 23, 2010

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Thomas Gryzbek
Title President
Phone (219) 932-2300

Other identifiers

Identifier Type State Issuer
0090000854 Other IL BCBS GROUP NUMBER
200159110A Medicaid IN -

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-06-23. Verify at npiregistry.cms.hhs.gov.
Where is St Margaret Mercy Healthcare Centers located?
The practice location on file with NPPES is in Dyer, IN.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-23.