Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leon B Mcnealy, MD

Radiation Oncology Physician in Marshfield, WI · enumerated 2006.

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

National Provider Identifier

1447294673

Verified

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Registry record

Entity type Individual (Type 1)

Name Leon B Mcnealy

Credential MD

Sex Male

Practice address 1000 N Oak Ave, Marshfield, WI, 54449

Phone (715) 387-5511

Enumeration date Jun 16, 2006

Last updated in NPPES Nov 17, 2022

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 01061165A (IN) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 51593 (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
000000479537	Other	IN	ANTHEM PIN # / ARNETT
11537108	Other	IN	CAQH NUMBER
200822990	Medicaid	IN	-
35131700	Medicaid	WI	-
000000491798	Other	IN	ANTHEM PIN # / OIGL
APPLYING	Other	IN	PHCS PID NUMBER

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1447294673 active?

Yes, as of the latest NPPES snapshot, NPI 1447294673 is active (record last updated 2022-11-17).

How do I verify Leon Mcnealy's NPI record?

Cross-check NPI 1447294673 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-17.