Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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William C Penley, MD

Individual provider Medical Oncology Physician · NPI 1194743914

William C Penley, MD practises Hematology/Oncology in Nashville, Tennessee. Graduated from Wake Forest University School of Medicine in 1982, 44 years ago. Practices with Tennessee Oncology PLLC, a 354-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
44
Trained at
Wake Forest University School of Medicine
Licensed in
TN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2004 Hayes St Ste 350
Nashville, TN 37203-2650
Phone: (615) 312-3333
Fax: (615) 320-7091
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 16053 (TN)

Record details

NPI number1194743914
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 18, 2006
Last updated in NPPESJuly 21, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesMEDICAL ONCOLOGY
Medical schoolWAKE FOREST UNIVERSITY SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Tennessee Oncology Pllc — 354 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients113
Services billed 10,134 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Tennessee Oncology PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 354 clinicians in the practice; 12 are shown here.

Other providers in Nashville