Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

St John Macomb-Oakland Hospital

Emergency Medical Services (Emergency Medicine) Physician in Warren, MI · enumerated 2006 · authorized official William Darroch, Manager, Finance.

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

National Provider Identifier

1902817620

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Registry record

Entity type Organization (Type 2)

Legal business name St John Macomb-Oakland Hospital

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

Phone (586) 573-5028

Enumeration date Aug 10, 2006

Last updated in NPPES Jun 2, 2009

Taxonomy & classification

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name William Darroch

Title Manager, Finance

Phone (586) 753-0305

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

Where is St John Macomb-Oakland Hospital located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-06-02. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-02.