NPI Portal NPI Lookup & Verification

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

Dr. Jon C. Bowersox, M.D.

Trauma Surgery Physician in Madison, WI · enumerated 2006.

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

National Provider Identifier

1164488946

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Registry record

Entity type Individual (Type 1)
Name Dr. Jon C. Bowersox
Credential M.D.
Sex Male
Practice address Madison, WI, 53715
Fax (608) 260-2976
Enumeration date Apr 21, 2006
Last updated in NPPES Aug 11, 2023

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

Taxonomy & licenses

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License G72140 (CA) Secondary
2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License G72140 (CA) Secondary
2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License 63678-20 (WI) 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
1164488946 Medicaid WI -
2690655 Medicaid OH -

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 Jon Bowersox's NPI record?
Cross-check NPI 1164488946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1164488946 active?
Yes, as of the latest NPPES snapshot, NPI 1164488946 is active (record last updated 2023-08-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-11.