Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

St Margaret Mercy Healthcare Centers

Psychiatry Physician in Munster, IN · enumerated 2006 · authorized official Thomas Gryzbek, President.

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

National Provider Identifier

1861564361

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Registry record

Entity type Organization (Type 2)

Legal business name St Margaret Mercy Healthcare Centers

Other name <Unavail>

Practice address 312 Ridge Road, Munster, IN, 46321

Phone (219) 322-5747

Fax (219) 864-2282

Enumeration date Nov 14, 2006

Last updated in NPPES Nov 25, 2008

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers Secondary

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Primary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians Secondary

364SP0807X Child & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Thomas Gryzbek

Title President

Phone (219) 932-2300

Other identifiers

Identifier	Type	State	Issuer
100462480	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

What type of organization is St Margaret Mercy Healthcare Centers?

St Margaret Mercy Healthcare Centers is registered in NPPES as a Psychiatry 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-25.