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

Dr. Leo Dean Jansen, M.D.

Orthopaedic Surgery Physician in Warsaw, IN · enumerated 2005 · practices at Jansen Orthopaedic Clinic, LLC.

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

National Provider Identifier

1518943042

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Registry record

Entity type Individual (Type 1)
Name Dr. Leo Dean Jansen
Credential M.D.
Sex Male
Practice address Warsaw, IN, 46582
Phone (574) 267-2663
Fax (574) 267-4408
Enumeration date Dec 16, 2005
Last updated in NPPES Oct 28, 2009

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

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 01043641A (IN) 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
P00249879 Other IN RR MEDICARE
200029900 Medicaid IN -

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 Leo Jansen?
The National Provider Identifier (NPI) for Leo Jansen is 1518943042, a Type 1 (individual) record in the CMS NPPES registry.
Where does Leo Jansen practice?
The practice location on file with NPPES is in Warsaw, IN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-28.