Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Timothy K Duffin MD Plc

Specialist in Clarksville, TN · enumerated 2007 · authorized official Timothy Duffin, Owner.

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

National Provider Identifier

1740483767

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Registry record

Entity type Organization (Type 2)

Legal business name Timothy K Duffin MD Plc

Practice address 800 Weatherly Drive, 100-L, Clarksville, TN, 37043

Phone (931) 553-2800

Fax (931) 553-0664

Enumeration date Jun 7, 2007

Last updated in NPPES Jul 12, 2010

Taxonomy & classification

174400000X Specialist Other Service Providers · License 26846 (TN) Primary

Authorized official

Name Timothy Duffin

Title Owner

Phone (931) 553-2800

Other identifiers

Identifier	Type	State	Issuer
3723229	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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-07-12. Verify at npiregistry.cms.hhs.gov.

Where is Timothy K Duffin MD Plc located?

The practice location on file with NPPES is in Clarksville, TN.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-12.