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Mark Stewart MD

Orthopaedic Surgery Physician in Bay City, MI · enumerated 2014 · authorized official Andrea Groulx, Office Manager.

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

National Provider Identifier

1073930822

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Registry record

Entity type Organization (Type 2)
Legal business name Mark Stewart MD
Other name <Unavail>
Practice address 4 Columbus Ave Ste 360, Bay City, MI, 48708
Phone (989) 894-1111
Enumeration date Mar 18, 2014
Last updated in NPPES Nov 18, 2025

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Andrea Groulx
Title Office Manager
Phone (989) 894-1111

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 Mark Stewart MD?
The NPI for Mark Stewart MD is 1073930822, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mark Stewart MD?
NPPES lists Andrea Groulx (Office Manager) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-18.