NPI Portal NPI Lookup & Verification

John D Mesko, M.D.

John D Mesko is a Specialist provider (Specialist) practicing in Mena, AR, registered in the NPPES registry with NPI 1003822016 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1003822016
Entity type Individual (Type 1)
Name John D Mesko
Credential M.D.
Sex Male
Practice address Mena, AR, 71953
Phone 4793944595
Fax 4793941140
Enumeration date 2006-07-31
Last updated in NPPES 2010-11-12

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
174400000X Specialist Primary C6220 AR

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
100071960 A Medicaid OK
112972001 Medicaid AR
50764 Other AR BLUE CROSS BLUE SHEILD
710709244 Other AR TAX ID #
Copy-ready billing details
Provider: John Mesko, M.D.
NPI: 1003822016
Taxonomy: 174400000X (Specialist)
Address: Mena, AR, 71953

Verify this record

Cross-check NPI 1003822016 against the authoritative CMS record: view John D Mesko on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify John Mesko's NPI record?
Cross-check NPI 1003822016 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1003822016 active?
Yes — as of the latest NPPES snapshot, NPI 1003822016 is active (record last updated 2010-11-12).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-11-12.