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

Dr. William J Pao, MD

Individual provider Radiation Oncology Physician · NPI 1447293931

Dr. William J Pao, MD is a Radiation Oncology Physician in Grafton, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
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

975 Port Washington Rd
Grafton, WI 53024-9201
Phone: (262) 329-5000
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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 30607-20 (WI)

Record details

NPI number1447293931
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2006
Last updated in NPPESSeptember 20, 2023
Certification dateSeptember 20, 2023

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