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

James Clifton Crittenden, M.D.

Internal Medicine Physician in Bay St Louis, MS · enumerated 2005.

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

National Provider Identifier

1780687855

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Registry record

Entity type Individual (Type 1)

Name James Clifton Crittenden

Credential M.D.

Sex Male

Practice address Bay St Louis, MS, 39520

Phone (228) 467-1414

Fax (228) 467-5863

Enumeration date May 23, 2005

Last updated in NPPES Jul 29, 2015

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 08719 (MS) 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
00010920	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

Where does James Crittenden practice?

The practice location on file with NPPES is in Bay St Louis, MS. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for James Crittenden?

The National Provider Identifier (NPI) for James Crittenden is 1780687855, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-29.