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

Dr. Michael D. Thornsberry, M.D.

Family Medicine Physician in Bristol, TN · enumerated 2006.

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

National Provider Identifier

1003894288

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael D. Thornsberry

Credential M.D.

Sex Male

Practice address Bristol, TN, 37620

Phone (423) 914-6265

Enumeration date Jan 6, 2006

Last updated in NPPES Aug 8, 2008

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD 36523 (MO) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Michael Thornsberry?

The National Provider Identifier (NPI) for Michael Thornsberry is 1003894288, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Thornsberry practice?

The practice location on file with NPPES is in Bristol, TN. Providers can have multiple locations; NPPES lists the primary practice address.

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