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

Justin James Chau, MD

Individual provider Medical Oncology Physician · NPI 1871974154

Justin James Chau, MD is a Hematology/Oncology in Grafton, Wisconsin. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2015, 11 years ago. Practices with Aurora Health Care Metro, Inc, a 74-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Iowa and Wisconsin.

Years since qualifying
11
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA, WI
In the registry since
2015
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Partly verified

Some contact details are missing from the federal record.

975 Port Washington Rd
Grafton, WI 53024-9204
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 200 Hawkins Dr, Iowa City, IA 52242-1009 — (319) 356-2148

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 82045 (WI)
Medical Oncology Physician Taxonomy 207RX0202X · Licence MD-45076 (IA)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence MD-45076 (IA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD-45076 (IA)

Record details

NPI number1871974154
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 12, 2015
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Aurora Health Care Metro, Inc. — 74 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare