Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. David A. Knight, MD

Individual provider Hematology & Oncology Physician · NPI 1598969644

Dr. David A. Knight, MD practises Hematology/Oncology in Milwaukee, Wisconsin. Graduated from Creighton University School of Medicine in 2002, 24 years ago. Practices with Froedtert South Inc, a 156-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois, Indiana and Wisconsin.

Years since qualifying
24
Trained at
Creighton University School of Medicine
Licensed in
IL, IN, WI
In the registry since
2007
Specialties on file
3
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
Milwaukee, WI 53226-3522
Phone: (414) 805-0505
Fax: (414) 955-0231
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 9555 76th St, Pleasant Prairie, WI 53158-1984 — (262) 671-7300
  • 9555 76th St Ste 1200, Pleasant Prairie, WI 53158-1984 — (262) 671-7300

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 55540 (WI)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 036113675 (IL)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 01064963A (IN)

Record details

NPI number1598969644
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2007
Last updated in NPPESSeptember 1, 2026
Certification dateSeptember 1, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Froedtert South Inc — 156 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients533
Services billed 4,302 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $124 4 payments · a meal or drink at a meeting or visit, not a fee
Education $100 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Froedtert South Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 156 clinicians in the practice; 12 are shown here.

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