Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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John William Hiemenz, MD

Individual provider Hematology & Oncology Physician · NPI 1447271887

John William Hiemenz, MD practises Medical Oncology in Gainesville, Florida. Graduated from University of Virginia School of Medicine in 1978, 48 years ago. Accepts Medicare assignment. Licensed in Florida.

Years since qualifying
48
Trained at
University of Virginia School 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 16 years — call before visiting
Phone: (352) 273-7832
Fax: (352) 273-5006
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence ME 41865 (FL)

Record details

NPI number1447271887
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 21, 2006
Last updated in NPPESNovember 2, 2009

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 1978 (48 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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