Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert W Mecker Jr., M.D.

Emergency Medicine Physician in Belleville, IL · enumerated 2007.

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

National Provider Identifier

1316074727

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert W Mecker Jr.

Credential M.D.

Sex Male

Practice address 4500 Memorial Dr, Belleville, IL, 62226

Phone (618) 257-5879

Fax (618) 257-6740

Enumeration date Feb 27, 2007

Last updated in NPPES Oct 18, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 2012003469 (MO) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036113285 (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
P00226791	Other	IL	RAILROAD MEDICARE

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 1316074727 active?

Yes, as of the latest NPPES snapshot, NPI 1316074727 is active (record last updated 2024-10-18).

How do I verify Robert Mecker's NPI record?

Cross-check NPI 1316074727 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 2024-10-18.