Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

St Clair Adult Medicine PC

Q: What is the NPI number for St Clair Adult Medicine PC?

The NPI for St Clair Adult Medicine PC is 1871529552, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Detroit, MI · enumerated 2006 · authorized official Mary Hardwicke, President.

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

National Provider Identifier

1871529552

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Registry record

Entity type Organization (Type 2)

Legal business name St Clair Adult Medicine PC

Practice address 22201 Moross Rd Ste 150, Detroit, MI, 48236

Phone (313) 886-8787

Fax (313) 886-4106

Enumeration date Jun 24, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mary Hardwicke

Title President

Phone (586) 778-4080

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 Clair Adult Medicine PC?

The NPI for St Clair Adult Medicine PC is 1871529552, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for St Clair Adult Medicine PC?

NPPES lists Mary Hardwicke (President) as the authorized official for this organization.

Providers at this address

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