NPI Portal NPI Lookup & Verification

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

Nancy Louisa Lamb, M.D.

Sleep Medicine (Psychiatry & Neurology) Physician in Cordova, TN · enumerated 2006.

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

National Provider Identifier

1326140047

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Registry record

Entity type Individual (Type 1)
Name Nancy Louisa Lamb
Credential M.D.
Sex Female
Practice address Cordova, TN, 38018
Phone (901) 737-9196
Fax (901) 758-2479
Enumeration date Sep 2, 2006
Last updated in NPPES Aug 30, 2008

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

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License A49877 (CA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 19266 (MS) Secondary
2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License 40054 (TN) Primary
2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License M3289 (TX) Secondary
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
00A498770 Medicaid CA -
00A498770 Other CA BLUE SHIELD OF CA

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Nancy Lamb?
Nancy Lamb is registered in NPPES with the primary taxonomy of Sleep Medicine (Psychiatry & Neurology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-30.