John Michael Boyle, M.D.
Radiation Oncology Physician · Ashland, WI
John Michael Boyle, M.D. is a radiation oncology physician with a practice address in Ashland, Wisconsin, and NPI 1588920649, issued on Apr 3, 2012. Check the license (Wisconsin 65291-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Michael Boyle
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 65291-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1615 Maple LN, Ashland, WI 54806
- Phone
- (715) 682-8183
- Enumerated
- Apr 3, 2012
- Record last updated
- Sep 13, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160920002511); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 153 in Wisconsin → Look up another NPI →
Also registered at 1615 Maple LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Terrence Asplund, M.D.Family Medicine Physician1811088875
- Grant Bludorn, DOFamily Medicine Physician1265920789
- Mallory Christ, DNP, CRNACertified Registered Nurse Anesthetist1871331066
- Daniel Compton, SAC-ITAddiction (Substance Use Disorder) Counselor1306762588
- Rebecca Crumb-Johnson, RDRegistered Dietitian1982879532
- Jacob DalbergPhysician Assistant1710619051
Verify John Michael Boyle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 65291-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average radiation oncology physician in 2024
198 Medicare Part D claims for 69 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 19 claims were for opioids.
Most prescribed
- Tamsulosin Hcl62 claims
- Dexamethasone21 claims
- Memantine Hcl15 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.
Bills Medicare through one group practice
- Memorial Medical Center IncAshland, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Michael Boyle among 153 radiation oncology physician records in Wisconsin
John Michael Boyle, M.D. is one of 153 radiation oncology physician records with a practice address in Wisconsin. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2011 · median 2008 among the 119 with a school on file
- Record last updated2016 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Wisconsin
There are 153 radiation oncology physician records in Wisconsin.
All 153 in Wisconsin → Every provider in Ashland → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Mark Steinmetz, M.D.Chippewa Falls, WI 547291598705261
- Rick Davis, MDOshkosh, WI 549041861460974
- Michael Hsie, MDOshkosh, WI 549041265695704
- Now Bahar Alam, MDEau Claire, WI 547031508363532
- James Baer, MDEau Claire, WI 547031275531493
- Zachary Wilson, M.D.Eau Claire, WI 547031265669980
- Michael Fallon, MDEau Claire, WI 547011184623381
- Kenneth Klein, MDEau Claire, WI 547011891736963
Common questions
What is John Michael Boyle, M.D.'s NPI number?
John Michael Boyle, M.D.'s National Provider Identifier (NPI) is 1588920649, issued on Apr 3, 2012. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Boyle, M.D. located?
The NPPES record lists a practice address at 1615 Maple LN, Ashland, WI, 54806. Phone: (715) 682-8183. Providers update this record themselves, so call before visiting.
How can I verify John Michael Boyle, M.D.'s license?
NPPES lists Wisconsin license number 65291-20, as entered by the provider. 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 John Michael Boyle, M.D. prescribe under Medicare Part D?
In 2024, John Michael Boyle, M.D. had 198 Medicare Part D claims for 69 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.