NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michael R Harbut, M.D., M.P.H., F.C.C.

Preventive Medicine/Occupational Environmental Medicine Physician in Royal Oak, MI · enumerated 2005 · practices at Center for Occupational & Environmental Medicine P C.

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

National Provider Identifier

1033100292

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Registry record

Entity type Individual (Type 1)
Name Michael R Harbut
Credential M.D., M.P.H., F.C.C.
Sex Male
Practice address Royal Oak, MI, 48067
Fax (248) 547-9336
Enumeration date Nov 4, 2005
Last updated in NPPES Dec 10, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License MH0048645 (MI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
263220210 Medicaid MI -

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

How do I verify Michael Harbut's NPI record?
Cross-check NPI 1033100292 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1033100292 active?
Yes, as of the latest NPPES snapshot, NPI 1033100292 is active (record last updated 2009-12-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-10.