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

Individual provider Hematology & Oncology Physician · NPI 1861443848

Dr. William R Drobyski, MD is a Hematology in Milwaukee, Wisconsin. Graduated from University of Rochester School of Medicine and Dentistry in 1983, 43 years ago. Practices with The Medical College of Wisconsin Inc, a 2,093-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
43
Trained at
University of Rochester School of Medicine and Dentistry
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

9200 W Wisconsin Ave Bone Marrow Transplant
Milwaukee, WI 53226-3522
Phone: (414) 805-6817
Fax: (414) 456-6321
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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 29248 (WI)

Record details

NPI number1861443848
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 13, 2006
Last updated in NPPESAugust 19, 2022
Certification dateAugust 19, 2022

Medicare enrollment

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

Medicare specialtyHEMATOLOGY
Also practisesHEMATOLOGY/ONCOLOGY, INTERNAL MEDICINE, MEDICAL ONCOLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 1983 (43 years in practice)
Group practice The Medical College Of Wisconsin Inc — 2093 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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