NPI Portal NPI Lookup & Verification

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

Dr. Michael Joseph Zahm, M.D.

Urology Physician in Barre, VT · enumerated 2007 · practices at Central Vermont Urology Inc.

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

National Provider Identifier

1023223575

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Registry record

Entity type Individual (Type 1)
Name Dr. Michael Joseph Zahm
Credential M.D.
Sex Male
Practice address Barre, VT, 05641
Fax (802) 476-6767
Enumeration date May 10, 2007
Last updated in NPPES Jun 11, 2008

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

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 042-0006490 (VT) 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
0005147 Medicaid VT -
441432886 Other VT RAIL ROAD MEDICARE

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Michael Zahm?
Michael Zahm is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-11.