Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy G. Michaelis, M.D.

Internal Medicine Physician in Chattanooga, TN · enumerated 2005.

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

National Provider Identifier

1467452425

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Registry record

Entity type Individual (Type 1)

Name Nancy G. Michaelis

Credential M.D.

Sex Female

Practice address 975 East Third Street, Chattanooga, TN, 37403

Phone (423) 266-1490

Fax (423) 778-2108

Enumeration date Jul 29, 2005

Last updated in NPPES Apr 14, 2016

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0101047020 (VA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD0000051271 (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
010230934	Medicaid	VA	-
010222559	Medicaid	VA	-
Q006729	Medicaid	TN	-

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 Michaelis?

Nancy Michaelis is registered in NPPES with the primary taxonomy of Internal Medicine 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 2016-04-14.