Jonathan Eric Leeman, M.D.
Radiation Oncology Physician · Boston, MA
Jonathan Eric Leeman, M.D. is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1871835231, issued on Mar 25, 2013. Check the license (Massachusetts 274578, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Jonathan Eric Leeman
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 274578 MA
277852 NY
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-5500
- Enumerated
- Mar 25, 2013
- Record last updated
- Dec 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20180817000728); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- 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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- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Jonathan Eric Leeman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 274578Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average radiation oncology physician in 2024
74 Medicare Part D claims for 49 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Hcl27 claims
- Tamsulosin Hcl25 claims
- Lorazepam11 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: $1,471.09
2 payments; by number, the most common kind was food and beverage; the largest payer was Iba Proton Therapy, 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
- Brigham And Womens Physicians Organization IncBoston, MA
- Dana-Farber Cancer Institute, Inc.Boston, MA
- Radiation Therapy OF Southeastern Mass, LLCMansfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Eric Leeman among 241 radiation oncology physician records in Massachusetts
Jonathan Eric Leeman, M.D. 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 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2013 · median 2006 among the 172 with a school on file
- Record last updated2025 · 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 Jonathan Eric Leeman, M.D.'s NPI number?
Jonathan Eric Leeman, M.D.'s National Provider Identifier (NPI) is 1871835231, issued on Mar 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Eric Leeman, M.D. located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-5500. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Eric Leeman, M.D.'s license?
NPPES lists Massachusetts license number 274578, 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 Jonathan Eric Leeman, M.D. prescribe under Medicare Part D?
In 2024, Jonathan Eric Leeman, M.D. had 74 Medicare Part D claims for 49 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.