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

Michael E Ray, MDPHD

Individual provider Radiation Oncology Physician · NPI 1891888269

Michael E Ray, MDPHD practises Radiation Oncology in Appleton, Wisconsin. Graduated from University of Michigan Medical School in 1998, 28 years ago. Practices with Radiology Associates of Appleton SC, a 31-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
28
Trained at
University of Michigan Medical School
Licensed in
MI
In the registry since
2006

Practice location Address checks out

900 E Grant
Appleton, WI 54911-3487 Not confirmed with CMS for 18 years — call before visiting
Phone: (920) 738-6340
Fax: (920) 738-6435
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 4301073755 (MI)

Record details

NPI number1891888269
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPHD
Sole proprietorNo
NPI enumeratedSeptember 30, 2006
Last updated in NPPESMay 1, 2008

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1998 (28 years in practice)
Group practice Radiology Associates Of Appleton Sc — 31 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients221
Services billed 1,663 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 Radiology Associates of Appleton SC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 31 clinicians in the practice; 12 are shown here.

Other providers in Appleton