Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Dianne Martin, CRNA

Certified Registered Nurse Anesthetist in Bay St Louis, MS · enumerated 2006.

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

National Provider Identifier

1356443220

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary Dianne Martin

Credential CRNA

Sex Female

Practice address 149 Drinkwater Rd, Bay St Louis, MS, 39520

Phone (228) 467-8775

Fax (228) 467-8667

Enumeration date Sep 2, 2006

Last updated in NPPES Jul 13, 2007

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License AP01498 (LA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
00126128	Medicaid	MS	-

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 Mary Martin's NPI record?

Cross-check NPI 1356443220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1356443220 active?

Yes, as of the latest NPPES snapshot, NPI 1356443220 is active (record last updated 2007-07-13).

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