Gastrointestinal TractGraft vs Host DiseaseHematopoietic Stem Cell Transplantation
Dr. William R. Drobyski, MD
NPI1861443848PAC ID5890828594
- Medicare services, 2024
- 35
- Medicare patients, 2024
- 18
- Publications
- 47
- MIPS score, 2024
- 88
- Hospital affiliations
- 1
- Practice address
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Practice phone
- Call (414) 805-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. William R. Drobyski is a hematologist and oncologist in Milwaukee, Wisconsin
Dr. Drobyski practices at Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Drobyski's NPI, 1861443848, was assigned on May 13, 2006. Dr. Drobyski graduated from University of Rochester School of Medicine and Dentistry in 1983. Dr. Drobyski holds Wisconsin license 29248.
NPI and contact details
- NPI
- 1861443848NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890828594
- NPI enumeration date
- May 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 805-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William R. Drobyski practices at Froedtert Hospital in Milwaukee, Wisconsin
Dr. Drobyski's primary practice is Froedtert Hospital, at 9200 W Wisconsin Ave, Milwaukee, WI 53226 in Milwaukee County. The practice phone is (414) 805-3000.
- Froedtert Hospital9200 W Wisconsin Ave, Milwaukee, WI 53226 · Milwaukee CountyPhone(414) 805-3000
Source: Dmand AI Affiliation Data
Dr. William R. Drobyski is affiliated with 1 site of care and 1 medical group
Dr. Drobyski's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William R. Drobyski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Drobyski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. William R. Drobyski is one of 277 hematologists and oncologists in Wisconsin
Hematology and oncology is Dr. Drobyski's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Drobyski is licensed in Wisconsin.
Specialties and state licenses
- Hematology and oncology, WisconsinPrimary
Hematologists and oncologists near Dr. Drobyski
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
277hematologists and oncologists in Wisconsin105hematologists and oncologists in Milwaukee45hematologists and oncologists at Froedtert Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William R. Drobyski billed Medicare for 35 services in 2024
CMS data shows 35 Medicare services from Dr. Drobyski across 1 procedure code in 2024, for 18 Medicare patients. Medicare paid $2,079 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202435
Medicare patients18
Paid by Medicare$2,079
Procedure codes1
Dr. Drobyski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2252024: 3584%
Dr. Drobyski compared with the Wisconsin median for hematologists and oncologists, 2024
- Dr. Drobyski
- Wisconsin median
- Medicare services
- 35vs 54594% below
- Medicare patients
- 18vs 17290% below
Medians across 269 hematologists and oncologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Drobyski's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William R. Drobyski treated 18 Medicare patients in 2024, average age 71
CMS counts 18 Medicare patients who saw Dr. Drobyski in 2024. 72% of them have high blood pressure, and 72% have high cholesterol. Their average risk score is 3.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Drobyski's median patient age at 64, with 36% women.
Medicare patients, 202418
Average age71
Average risk score3.90
Chronic conditions among Dr. Drobyski's Medicare patients, 2024
- High blood pressure72%
- High cholesterol72%
Share of Medicare patients with each condition. A patient can have several.
Dr. Drobyski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women36%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William R. Drobyski scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Drobyski for performance year 2024, reported as part of a group. Dr. Drobyski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Drobyski's MIPS scores, performance year 2024
- 88of 100Final score
- 82.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. William R. Drobyski has 47 publications on record
Dmand AI links 47 papers to Dr. Drobyski, published from 2014 to 2025. 2018 was the busiest year, with 10. The most frequent topics are Graft vs Host Disease, Hematopoietic Stem Cell Transplantation and Mice, Inbred C57BL. Dr. Drobyski has published most often in Bone Marrow Transplant. Dr. Drobyski's most frequent co-authors are Parameswaran N. Hari, MD, Marcelo C. Pasquini, MD and Saurabh Chhabra, MD.
Papers47
Years published2014 to 2025
Dr. Drobyski's papers by year, 2016 to 2025
Topics Dr. Drobyski writes about most
- Graft vs Host Disease
- Hematopoietic Stem Cell Transplantation
- Mice, Inbred C57BL
- Transplantation Conditioning
- Disease Models, Animal
- Gastrointestinal Diseases
- Allografts
- CD8-Positive T-Lymphocytes
Dr. Drobyski's most frequent co-authors
- Parameswaran N. Hari, MD18 shared papers
- Marcelo C. Pasquini, MD16 shared papers
- Saurabh Chhabra, MD13 shared papers
Recent publications by Dr. Drobyski
Bronchiolitis Obliterans SyndromeCalcineurin InhibitorsCyclophosphamide
Immunity, InnateInterleukin-33Interleukin-9
Bone Marrow Transplant
DemographyImmunotherapy, AdoptiveMultiple Myeloma
See who Dr. Drobyski researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Drobyski works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William R. Drobyski graduated from University of Rochester School of Medicine and Dentistry
Dr. Drobyski graduated from University of Rochester School of Medicine and Dentistry in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William R. Drobyski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William R. Drobyski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William R. Drobyski's NPI number?
Dr. William R. Drobyski's NPI number is 1861443848. It was assigned on May 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William R. Drobyski?
Dr. William R. Drobyski is a hematologist and oncologist in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. William R. Drobyski practice?
Dr. Drobyski practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Dr. Drobyski's primary practice is Froedtert Hospital in Milwaukee, Wisconsin, part of Froedtert ThedaCare Health.
What is Dr. William R. Drobyski's office phone number?
The practice phone on file for Dr. Drobyski is (414) 805-3000.
What is Dr. William R. Drobyski's medical license number?
Dr. Drobyski holds Wisconsin license 29248.
Which hospitals is Dr. William R. Drobyski affiliated with?
Dr. Drobyski practices at Froedtert Hospital in Milwaukee, Wisconsin.
What medical group is Dr. William R. Drobyski part of?
Dr. Drobyski is linked to Froedtert & the Medical College of Wisconsin Community Physicians.
Does Dr. William R. Drobyski accept Medicare?
Yes. CMS data shows Dr. Drobyski billed Medicare for 35 services in 2024, and Dr. Drobyski accepts Medicare assignment.
What is Dr. William R. Drobyski's MIPS score?
Dr. Drobyski's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.
How many Medicare patients does Dr. William R. Drobyski see?
CMS counts 18 Medicare patients who saw Dr. Drobyski in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. William R. Drobyski bill to Medicare?
In 2024, Dr. Drobyski's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. William R. Drobyski go to medical school?
Dr. Drobyski graduated from University of Rochester School of Medicine and Dentistry in 1983.
How long has Dr. William R. Drobyski been practicing?
Dr. Drobyski graduated from medical school in 1983, 43 years ago.
Does Dr. William R. Drobyski do research?
Dmand AI links 47 publications to Dr. Drobyski, published from 2014 to 2025.
Who does Dr. William R. Drobyski publish with?
Dr. Drobyski's most frequent co-authors are Parameswaran N. Hari, MD (18 shared papers), Marcelo C. Pasquini, MD (16 shared papers) and Saurabh Chhabra, MD (13 shared papers).
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