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

William M. Mendenhall, MD

Individual provider Radiation Oncology Physician · NPI 1528020708

William M. Mendenhall, MD practises Radiation Oncology in Gainesville, Florida. Graduated from University of South Florida College of Medicine in 1978, 48 years ago. Practices with Florida Proton Therapy Institute Inc, a 12-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Florida.

Years since qualifying
48
Trained at
University of South Florida College of Medicine
Licensed in
FL
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

1600 SW Archer Rd
Gainesville, FL 32610-3003 Not confirmed with CMS for 14 years — call before visiting
Phone: (352) 265-0287
Fax: (352) 265-0759
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence ME35881 (FL)

Record details

NPI number1528020708
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2006
Last updated in NPPESNovember 21, 2011

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE
Graduated 1978 (48 years in practice)
Group practice Florida Proton Therapy Institute Inc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients404
Services billed 2,563 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Florida Proton Therapy Institute Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Gainesville