Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Gregg T Williams, CRNA

Certified Registered Nurse Anesthetist in Meridian, MS · enumerated 2006.

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

National Provider Identifier

1255444808

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Registry record

Entity type Individual (Type 1)

Name Gregg T Williams

Credential CRNA

Sex Male

Practice address Meridian, MS, 39301

Phone (601) 553-6000

Fax (601) 553-6115

Enumeration date Aug 17, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License R544728 (MS) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
00111160	Medicaid	MS	-
009974670	Medicaid	AL	-
730-69360	Other	AL	BLUE CROSS OF AL

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.

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Frequently asked questions

How do I verify Gregg Williams's NPI record?

Cross-check NPI 1255444808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1255444808 active?

Yes, as of the latest NPPES snapshot, NPI 1255444808 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.