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

Dr. Michael Russell Mullane

Individual provider Internal Medicine Physician · NPI 1386665081

Dr. Michael Russell Mullane practises Internal Medicine in Chicago, Illinois. Graduated from Wayne State University School of Medicine in 1982, 44 years ago. Practices with Cook County, a 787-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
44
Trained at
Wayne State University School of Medicine
Licensed in
IL
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

1900 W Polk St Rm 765
Chicago, IL 60612-3723
Phone: (312) 864-7194
Fax: (312) 864-9002
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 036-068847 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036-068847 (IL)

Record details

NPI number1386665081
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJuly 21, 2006
Last updated in NPPESApril 27, 2021
Certification dateApril 27, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesMEDICAL ONCOLOGY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Cook County — 787 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients105
Services billed 236 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 $99 4 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 Cook County

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 787 clinicians in the practice; 12 are shown here.

Other providers in Chicago