Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael C Grieb, M.D.

Emergency Medical Services (Emergency Medicine) Physician in Metairie, LA · enumerated 2006.

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

National Provider Identifier

1093793556

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael C Grieb

Credential M.D.

Sex Male

Practice address 4200 Houma Blvd, Emergency Room, Metairie, LA, 70006

Phone (210) 614-0180

Fax (210) 566-5698

Enumeration date Jan 5, 2006

Last updated in NPPES Jul 11, 2011

Taxonomy & licenses

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License .017408 (LA) 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
1360872	Medicaid	LA	-
H4048	Other	LA	BCBS

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

How do I verify Michael Grieb's NPI record?

Cross-check NPI 1093793556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1093793556 active?

Yes, as of the latest NPPES snapshot, NPI 1093793556 is active (record last updated 2011-07-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-11.