Zoe Leah Cosner, MD
Radiation Oncology Physician · Boston, MA
Zoe Leah Cosner, MD is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1891264081, issued on Nov 16, 2018. Check the license (Massachusetts 3013742, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Zoe Leah Cosner
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 3013742 MA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-6310
- Enumerated
- Nov 16, 2018
- Record last updated
- Jun 15, 2023
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 241 in Massachusetts → Look up another NPI →
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zoe Leah Cosner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 3013742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average radiation oncology physician in 2024
30 Medicare Part D claims for 17 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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.
Zoe Leah Cosner among 241 radiation oncology physician records in Massachusetts
Zoe Leah Cosner, MD is one of 241 radiation oncology physician records with a practice address in Massachusetts. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 83% of them.
- NPI issued2018 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2023 · 54% 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 Massachusetts 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 Massachusetts
There are 241 radiation oncology physician records in Massachusetts.
All 241 in Massachusetts → Every provider in Boston → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Michele Albert, MDBoston, MA 021151285691972
- Brian Alexander, M.D.Boston, MA 021151275511149
- Tracy Balboni, M.D., M.P.H.Boston, MA 021151720055932
- Bruce Borgelt, MDBoston, MA 021151770557498
- Anthony Damico, MDBoston, MA 021151316904782
- Phillip Devlin, MDBoston, MA 021151336105584
- Tatiana Lingos, M.D.Boston, MA 021151346231024
- Harvey Mamon, M.D., PH.D.Boston, MA 021151265498000
Common questions
What is Zoe Leah Cosner, MD's NPI number?
Zoe Leah Cosner, MD's National Provider Identifier (NPI) is 1891264081, issued on Nov 16, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Zoe Leah Cosner, MD located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-6310. Providers update this record themselves, so call before visiting.
How can I verify Zoe Leah Cosner, MD's license?
NPPES lists Massachusetts license number 3013742, 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 Zoe Leah Cosner, MD prescribe under Medicare Part D?
In 2024, Zoe Leah Cosner, MD had 30 Medicare Part D claims for 17 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.