Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William J Kellett, DO

Obstetrics & Gynecology Physician in Nashville, TN · enumerated 2007.

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

National Provider Identifier

1568666048

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Registry record

Entity type Individual (Type 1)

Name William J Kellett

Credential DO

Sex Male

Practice address Vanderbilt University Medical Ctr, B1100 Medical Center North, Department of Obgyn, Nashville, TN, 37232

Phone (615) 343-5700

Enumeration date Jun 11, 2007

Last updated in NPPES Mar 23, 2022

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 2252 (TN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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 William Kellett?

The National Provider Identifier (NPI) for William Kellett is 1568666048, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Kellett practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-23.