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Michael T. Koltz, MD

Neurological Surgery Physician in Madison, WI · enumerated 2007.

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

National Provider Identifier

1689700726

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Registry record

Entity type Individual (Type 1)
Name Michael T. Koltz
Credential MD
Sex Male
Practice address 700 S Park St, Suite A, Madison, WI, 53715
Phone (608) 260-2900
Fax (608) 260-3447
Enumeration date Feb 25, 2007
Last updated in NPPES Aug 16, 2013

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 60288-020 (WI) 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 Michael Koltz?
The National Provider Identifier (NPI) for Michael Koltz is 1689700726, a Type 1 (individual) record in the CMS NPPES registry.
Where does Michael Koltz practice?
The practice location on file with NPPES is in Madison, WI. 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 2013-08-16.