Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles Austin Leder, M.D.

Emergency Medicine Physician in La Crosse, WI · enumerated 2009.

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

National Provider Identifier

1326279118

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Registry record

Entity type Individual (Type 1)

Name Charles Austin Leder

Credential M.D.

Sex Male

Practice address 700 West Ave S, La Crosse, WI, 54601

Phone (608) 392-7000

Enumeration date Jul 28, 2009

Last updated in NPPES Jun 1, 2022

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 65717 (WI) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 4301095141 (MI) Secondary

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

How do I verify Charles Leder's NPI record?

Cross-check NPI 1326279118 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326279118 active?

Yes, as of the latest NPPES snapshot, NPI 1326279118 is active (record last updated 2022-06-01).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-01.