Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

St. John Hospital and Medical Center

Q: What is the NPI number for St. John Hospital and Medical Center?

The NPI for St. John Hospital and Medical Center is 1801866942, a Type 2 (organization) record in the CMS NPPES registry.

Rehabilitation Hospital Unit in Harrison Twp, MI · enumerated 2006 · authorized official Tomasine Marx, Vp Finance.

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

National Provider Identifier

1801866942

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Registry record

Entity type Organization (Type 2)

Legal business name St. John Hospital and Medical Center

Other name <Unavail>

Practice address 26755 Ballard St, Harrison Twp, MI, 48045

Phone (586) 465-5501

Enumeration date Jan 23, 2006

Last updated in NPPES Oct 8, 2012

Taxonomy & classification

273Y00000X Rehabilitation Hospital Unit Hospital Units Primary

Authorized official

Name Tomasine Marx

Title Vp Finance

Phone (313) 343-7676

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 is the NPI number for St. John Hospital and Medical Center?

The NPI for St. John Hospital and Medical Center is 1801866942, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for St. John Hospital and Medical Center?

NPPES lists Tomasine Marx (Vp Finance) as the authorized official for this organization.

Providers at this address

Browse all →

St. John North Shores Emergency Physicians, P.C. Emergency Medicine Physician · Harrison Twp, MI NPI 1467407734 Shirley Sayles Pharmacist · Harrison Township, MI NPI 1477669224 Kathy Calabrese Certified Registered Nurse Anesthetist · Harrison Twp, MI NPI 1982780599 St John North Shores Emergency Physicians, P. C. Emergency Medicine Physician · Harrison Township, MI NPI 1376613638 Jennifer Litzenberg Athletic Trainer · Harrison Township, MI NPI 1598811614 St John Hospital and Medical Center Certified Registered Nurse Anesthetist · Harrison Township, MI NPI 1740312685 St. John North Shores Hospital Clinic/Center · Harrison Township, MI NPI 1295867133 Mary Mclain Pharmacist · Harrison Township, MI NPI 1558576504

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-08.