Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Merritt Humphrey, MD

Diagnostic Radiology Physician in Cookeville, TN · enumerated 2006.

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

National Provider Identifier

1043244684

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Registry record

Entity type Individual (Type 1)

Name Dr. William Merritt Humphrey

Credential MD

Sex Male

Practice address 315 N. Washington Avenue, Suite 103, Cookeville, TN, 38501

Phone (931) 528-2443

Fax (931) 528-1488

Enumeration date Jul 10, 2006

Last updated in NPPES Nov 9, 2016

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD06278 (TN) Primary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 6278 (TN) Secondary

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
3193466	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

What is the NPI number for William Humphrey?

The National Provider Identifier (NPI) for William Humphrey is 1043244684, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Humphrey practice?

The practice location on file with NPPES is in Cookeville, 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 2016-11-09.