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Michael E Gruber MD PC

Internal Medicine Physician in Bay City, MI · enumerated 2007 · authorized official Michael Gruber, Physician.

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

National Provider Identifier

1861687006

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Registry record

Entity type Organization (Type 2)
Legal business name Michael E Gruber MD PC
Practice address 200 S Wenona St, Bay City, MI, 48706
Phone (989) 892-6587
Fax (989) 892-3140
Enumeration date Sep 11, 2007
Last updated in NPPES Dec 20, 2009

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michael Gruber
Title Physician
Phone (989) 892-6587

Other identifiers

Identifier Type State Issuer
0Z91190 Other MI BCBSM GROUP
MG036542 Other MI BCBSM LICENSE NUMBER

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

What is the NPI number for Michael E Gruber MD PC?
The NPI for Michael E Gruber MD PC is 1861687006, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Michael E Gruber MD PC?
NPPES lists Michael Gruber (Physician) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-20.