Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

St. John Health System - Macomb

Critical Access Hospital in Warren, MI · enumerated 2006 · authorized official Todd Roark, Acute Care Nurse Practitioner.

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

National Provider Identifier

1568559227

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Registry record

Entity type Organization (Type 2)

Legal business name St. John Health System - Macomb

Practice address 11800 E 12 Mile Rd, Warren, MI, 48093

Phone (586) 573-5402

Enumeration date Oct 6, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

282NC0060X Critical Access Hospital Hospitals · License 4704229946 (MI) Primary

Authorized official

Name Todd Roark

Title Acute Care Nurse Practitioner

Phone (586) 573-5402

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is St. John Health System - Macomb located?

The practice location on file with NPPES is in Warren, MI.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.