Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Wesley Mesko, MD

Q: What is the NPI number for John Mesko?

The National Provider Identifier (NPI) for John Mesko is 1043200306, a Type 1 (individual) record in the CMS NPPES registry.

Adult Reconstructive Orthopaedic Surgery Physician in Lansing, MI · enumerated 2005.

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

National Provider Identifier

1043200306

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Registry record

Entity type Individual (Type 1)

Name John Wesley Mesko

Credential MD

Sex Male

Practice address 2815 S Pennsylvania Ave, Suite 204, Lansing, MI, 48910

Phone (517) 267-0200

Fax (517) 267-1877

Enumeration date Oct 26, 2005

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License JM056304 (MI) 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
4954152	Medicaid	MI	-
JM056304	Other	-	LICENSE
200000006522	Other	MI	PHP
P00366506	Other	MI	RAILROAD MEDICARE
2003313211	Other	MI	BLUES
P54271	Other	-	BCN
4642835	Other	-	AETNA

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

What is the NPI number for John Mesko?

The National Provider Identifier (NPI) for John Mesko is 1043200306, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Mesko practice?

The practice location on file with NPPES is in Lansing, MI. 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 2023-03-07.