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Dr. James C Mackenzie, MD

Internal Medicine Physician in Troy, MI · enumerated 2005.

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

National Provider Identifier

1548251168

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Registry record

Entity type Individual (Type 1)
Name Dr. James C Mackenzie
Credential MD
Sex Male
Practice address 1380 Coolidge Hwy, Suite 100, Troy, MI, 48084
Phone (248) 288-4000
Fax (248) 288-3900
Enumeration date Nov 2, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301030901 (MI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 James Mackenzie?
The National Provider Identifier (NPI) for James Mackenzie is 1548251168, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Mackenzie practice?
The practice location on file with NPPES is in Troy, MI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.