Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Nixon, MD

Emergency Medicine Physician in Nashville, TN · enumerated 2006.

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

National Provider Identifier

1770539017

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Registry record

Entity type Individual (Type 1)

Name John Nixon

Credential MD

Sex Male

Practice address 1818 Albion St, Nashville, TN, 37208

Phone (615) 341-4000

Fax (865) 291-3228

Enumeration date May 26, 2006

Last updated in NPPES Nov 7, 2007

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD012454 (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
3816699	Medicaid	TN	-
P00295851	Other	TN	RAILROAD MEDICARE
4071488	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.

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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 John Nixon?

John Nixon is registered in NPPES with the primary taxonomy of Emergency 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 2007-11-07.