Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher Doyle Stephens, M.D.

Diagnostic Radiology Physician in Knoxville, TN · enumerated 2009.

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

National Provider Identifier

1316172620

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher Doyle Stephens

Credential M.D.

Sex Male

Practice address 1924 Alcoa Hwy # U107, Knoxville, TN, 37920

Phone (865) 305-9661

Fax (865) 305-6148

Enumeration date May 17, 2009

Last updated in NPPES Oct 31, 2022

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD52527 (TN) Secondary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License MD52527 (TN) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License MD52527 (TN) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 52527 (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
Q013690	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

What specialty is Christopher Stephens?

Christopher Stephens is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-31.