Michael E. Ray, MD PHD
Radiation Oncology Physician · Appleton, WI
Michael E. Ray, MD PHD is a radiation oncology physician with a practice address in Appleton, Wisconsin, and NPI 1891888269, issued on Sep 30, 2006. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael E. Ray
- Credential
- MD PHD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 4301073755 MI
Self-reported in NPPES; status is on the state search - Practice location
- 900 E Grant, Appleton, WI 54911
- Phone
- (920) 738-6340
- Enumerated
- Sep 30, 2006
- Record last updated
- May 1, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (920) 738-6435
- Medicaid ID
- 4537599 MI
- Medicare enrollment
- Enrolled (PECOS I20070306000413); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1998
- Entity
- Type 1 · individual
Verify Michael E. Ray in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average radiation oncology physician in 2024
373 Medicare Part D claims for 147 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Tamsulosin Hcl276 claims
- Alfuzosin Hcl Er15 claims
- Megestrol Acetate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $92.04
2 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Newtro SCAppleton, WI
- Oconto Hospital And Medical Center IncMarinette, WI
- Radiology Associates OF Appleton SCAppleton, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Wisconsin
There are 153 radiation oncology physician records in Wisconsin.
Other radiation oncology physician records in Wisconsin
- Now Bahar Alam, MDEau Claire, WI1508363532
- Bethany Anderson, M.D.Madison, WI1629001417
- Richard Auchter, MDMadison, WI1366404329
- Musaddiq Awan, M.D.Milwaukee, WI1205279957
- James Baer, MDEau Claire, WI1275531493
- Patricia Barrett, MDMadison, WI1184690836
- Darryl BartonWausau, WI1609822774
- Andrew BaschnagelMadison, WI1578793048
- Michael BassettiMadison, WI1639332158
- Kenneth Bastin, MDMilwaukee, WI1457393431
Common questions
What is Michael E. Ray, MD PHD's NPI number?
Michael E. Ray, MD PHD's National Provider Identifier (NPI) is 1891888269, issued on Sep 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael E. Ray, MD PHD located?
The NPPES record lists a practice address at 900 E Grant, Appleton, WI, 54911. Phone: (920) 738-6340. Providers update this record themselves, so call before visiting.
How can I verify Michael E. Ray, MD PHD's license?
Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael E. Ray, MD PHD prescribe under Medicare Part D?
In 2024, Michael E. Ray, MD PHD had 373 Medicare Part D claims for 147 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.