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

Robert James Cronk

Individual provider Internal Medicine Physician · NPI 1013301241

Robert James Cronk practises Hematology/Oncology in Milwaukee, Wisconsin. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 2015, 11 years ago. Practices with Froedtert South Inc, a 156-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
11
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
WI
In the registry since
2015
Specialties on file
3
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Practice location Address checks out

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522
Phone: (414) 805-0509
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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 66558 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 66558 (WI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1013301241
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 25, 2015
Last updated in NPPESSeptember 9, 2021
Certification dateSeptember 9, 2021

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 2015 (11 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 patients246
Services billed 707 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.

Education $99 1 payment · educational material or training, not a fee
Food and Beverage $55 2 payments · a meal or drink at a meeting or visit, 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.

Other providers in Milwaukee