Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Linda Jefferson, MD

Internal Medicine Physician in Waldorf, MD · enumerated 2005.

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

National Provider Identifier

1164415832

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Registry record

Entity type Individual (Type 1)

Name Linda Jefferson

Credential MD

Sex Female

Practice address 2670 Crain Hwy, Suite 410, Waldorf, MD, 20601

Phone (301) 374-9300

Fax (301) 374-9469

Enumeration date Aug 26, 2005

Last updated in NPPES Jan 10, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D0054044 (MD) 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
KCJ9LI	Other	MD	BLUE CROSS
G338 0001	Other	DC	BLUE CROSS
0405399	Other	MD	UNITED HEALTHCARE
2121023	Other	MD	MAMSI ALLIANCE
332602100	Medicaid	MD	-
DB5669	Other	MD	RAILROAD RETIREMENT
100431	Other	MD	PRIORITY PARTNERS

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 Linda Jefferson's NPI record?

Cross-check NPI 1164415832 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1164415832 active?

Yes, as of the latest NPPES snapshot, NPI 1164415832 is active (record last updated 2017-01-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-10.