Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stephen K Souther, M.D.

Cardiovascular Disease Physician in Knoxville, TN · enumerated 2005 · practices at Mountain Home Vamc.

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

National Provider Identifier

1124022017

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Registry record

Entity type Individual (Type 1)

Name Dr. Stephen K Souther

Credential M.D.

Sex Male

Practice address 8033 Ray Mears Blvd, Knoxville, TN, 37919

Phone (865) 545-4592

Enumeration date Jun 8, 2005

Last updated in NPPES Jul 9, 2018

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 44108 (GA) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 044108 (GA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Stephen Souther?

Stephen Souther is registered in NPPES with the primary taxonomy of Cardiovascular Disease 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 2018-07-09.