Ayal Aizer, MD
Radiation Oncology Physician · Boston, MA
Ayal Aizer, MD is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1619105095, issued on Jun 24, 2009. Check the license (Massachusetts 250087, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ayal Aizer
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 250087 MA
240981 MA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 525-7136
- Enumerated
- Jun 24, 2009
- Record last updated
- Jun 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140627000959); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
- Emily Aaronson, M.D.Emergency Medicine Physician1962791558
- Sarah Abbett, M.D.Anesthesiology Physician1902097736
- Christine Abbott, NPAdult Health Nurse Practitioner1851471940
- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Ayal Aizer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 250087Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average radiation oncology physician in 2024
45 Medicare Part D claims for 31 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Levetiracetam16 claims
- Dexamethasone14 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
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Massachusetts
There are 241 radiation oncology physician records in Massachusetts.
Other radiation oncology physician records in Massachusetts
- Anthony Abner, MDCambridge, MA1487629127
- Matthew Abrams, M.D.Boston, MA1104189117
- Todd Adams, M.D.Medford, MA1972751493
- Jenna Adleman, MDBoston, MA1528613833
- Nima Aghdam, M.D.Boston, MA1942696752
- Michele Albert, MDBoston, MA1285691972
- Brian Alexander, M.D.Boston, MA1275511149
- Aaron Allen, MDBoston, MA1396849527
- Erik Anderson, M.D. PH.D.Boston, MA1528488269
- Mona Arbab, M.D.Boston, MA1225560345
Common questions
What is Ayal Aizer, MD's NPI number?
Ayal Aizer, MD's National Provider Identifier (NPI) is 1619105095, issued on Jun 24, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ayal Aizer, MD located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 525-7136. Providers update this record themselves, so call before visiting.
How can I verify Ayal Aizer, MD's license?
NPPES lists Massachusetts license number 250087, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ayal Aizer, MD prescribe under Medicare Part D?
In 2024, Ayal Aizer, MD had 45 Medicare Part D claims for 31 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.