Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Walter A. Martin, CRNA

Certified Registered Nurse Anesthetist in Hagerstown, MD · enumerated 2007.

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

National Provider Identifier

1003969585

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Registry record

Entity type Individual (Type 1)

Name Walter A. Martin

Credential CRNA

Sex Male

Practice address 251 E Antietam St, Hagerstown, MD, 21740

Phone (302) 709-4497

Fax (302) 733-0854

Enumeration date Jan 19, 2007

Last updated in NPPES Oct 9, 2007

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License R148205 (MD) Primary

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

Other identifiers

Identifier	Type	State	Issuer
R148205	Other	MD	LICENSE MARYLAND

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

Where does Walter Martin practice?

The practice location on file with NPPES is in Hagerstown, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Walter Martin?

The National Provider Identifier (NPI) for Walter Martin is 1003969585, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-09.