NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark T. Mckay, M.D.

Family Medicine Physician in Springfield, IL · enumerated 2006.

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

National Provider Identifier

1013015031

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark T. Mckay
Credential M.D.
Sex Male
Practice address 2200 Wabash Ave, Springfield, IL, 62704
Phone (217) 528-7541
Enumeration date Sep 21, 2006
Last updated in NPPES May 21, 2020

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036-095953 (IL) 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
036095953 Medicaid IL -

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 1013015031 active?
Yes, as of the latest NPPES snapshot, NPI 1013015031 is active (record last updated 2020-05-21).
How do I verify Mark Mckay's NPI record?
Cross-check NPI 1013015031 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-21.