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

Dr. Karen Warren Littleton, D.M.D.

General Practice Dentistry in Woodstock, AL · enumerated 2006.

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

National Provider Identifier

1821188954

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Registry record

Entity type Individual (Type 1)

Name Dr. Karen Warren Littleton

Credential D.M.D.

Sex Female

Practice address Woodstock, AL, 35188

Phone (205) 938-3318

Fax (205) 938-9851

Enumeration date Oct 12, 2006

Last updated in NPPES Jul 9, 2007

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 4997 (AL) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
510-39877	Other	AL	BLUE CROSS AND BLUE SHIEL

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

What is the NPI number for Karen Littleton?

The National Provider Identifier (NPI) for Karen Littleton is 1821188954, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karen Littleton practice?

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

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