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

Michael P O'Brien, MD

Individual provider Diagnostic Radiology Physician · NPI 1194777888

Michael P O'Brien, MD practises Diagnostic Radiology in Waukesha, Wisconsin. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2004, 22 years ago. Practices with Lakeshore Medical Clinic LLC, a 379-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
22
Trained at
University of Iowa, Rj & L Carver College of Medicine
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

W231N1440 Corporate Ct
Waukesha, WI 53186-1303
Phone: (262) 896-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10945 N Port Washington Rd Ste 201, Mequon, WI 53092-5078 — (262) 292-3151

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 48359 (WI)

Record details

NPI number1194777888
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESDecember 30, 2024
Certification dateDecember 30, 2024

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Lakeshore Medical Clinic Llc — 379 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients1,601
Services billed 2,320 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Lakeshore Medical Clinic LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 379 clinicians in the practice; 12 are shown here.

Other providers in Waukesha