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

Aaron Mark Udager, MD, PHD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1376807594

Aaron Mark Udager, MD, PHD practises Pathology in Ann Arbor, Michigan. Graduated from University of Michigan Medical School in 2012, 14 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
14
Trained at
University of Michigan Medical School
Licensed in
MI
In the registry since
2012
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1500 E Medical Center Drive 2nd Fl University Hospital Rec Pathology
Ann Arbor, MI 48109-5054 Not confirmed with CMS for 11 years — call before visiting
Phone: (800) 862-7284
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 4301100449 (MI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4301100449 (MI)

Record details

NPI number1376807594
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJuly 3, 2012
Last updated in NPPESJuly 9, 2015

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2012 (14 years in practice)
Group practice Regents Of The University Of Michigan — 3271 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 patients393
Services billed 1,097 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Colleagues at Regents of the University of Michigan

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3271 clinicians in the practice; 12 are shown here.

Other providers in Ann Arbor