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

Karen L Oldham, MD

Q: What is the NPI number for Karen Oldham?

The National Provider Identifier (NPI) for Karen Oldham is 1639140585, a Type 1 (individual) record in the CMS NPPES registry.

Emergency Medicine Physician in Lebanon, TN · enumerated 2006.

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

National Provider Identifier

1639140585

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Registry record

Entity type Individual (Type 1)

Name Karen L Oldham

Credential MD

Sex Female

Practice address Lebanon, TN, 37087

Phone (615) 444-4126

Enumeration date Jan 30, 2006

Last updated in NPPES Oct 7, 2015

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

Taxonomy & licenses

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License 019052 (TN) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 019052 (TN) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 19052 (TN) 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
4510052	Other	-	AETNA
351808200	Other	-	DOL FECA W/COMP (OWCP)
3704080	Other	TN	MEDICARE GROUP
P00425475	Other	-	RAILROAD MEDICARE PGBA
3870738	Medicaid	TN	-
4145836	Other	TN	BCBS

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 Karen Oldham practice?

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

What is the NPI number for Karen Oldham?

The National Provider Identifier (NPI) for Karen Oldham is 1639140585, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-07.