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William C Penley, M.D.

Medical Oncology Physician in Nashville, TN · enumerated 2006.

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

National Provider Identifier

1194743914

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Registry record

Entity type Individual (Type 1)
Name William C Penley
Credential M.D.
Sex Male
Practice address 2004 Hayes St Ste 350, Nashville, TN, 37203
Phone (615) 312-3333
Fax (615) 320-7091
Enumeration date Jul 18, 2006
Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 16053 (TN) Primary
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
4206464 Other - AETNA
64794274 Medicaid KY -
4093902 Other - BCBS OF TN
P00182953 Other - RAILROAD MEDICARE
3018083 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.

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Frequently asked questions

What specialty is William Penley?
William Penley is registered in NPPES with the primary taxonomy of Medical Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.