Irving David Kaplan, M.D.
Radiation Oncology Physician · Boston, MA
Irving David Kaplan, M.D. is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1790719458, issued on Jul 10, 2006. Check the license (Massachusetts 76638, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Irving David Kaplan
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 76638 MA
Self-reported in NPPES; status is on the state search - Practice location
- Bidmc-Radiation Therapy, Boston, MA 02215
- Phone
- (617) 667-2345
- Enumerated
- Jul 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050511000750); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 241 in Massachusetts → Look up another NPI →
Verify Irving David Kaplan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 76638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average radiation oncology physician in 2024
155 Medicare Part D claims for 53 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Tamsulosin Hcl88 claims
- Xtandi17 claims
- Orgovyx15 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: $19.82
1 payment: food and beverage; the largest payer was Bioprotect Medical, 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 2 group practices
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncNeedham, MA
- Southcoast Physicians Group IncFall River, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Irving David Kaplan among 241 radiation oncology physician records in Massachusetts
Irving David Kaplan, 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1985 · median 2006 among the 172 with a school on file
- Record last updated2007 · 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
- Matthew Abrams, M.D.Boston, MA 022151104189117
- Erik Anderson, M.D. PH.D.Boston, MA 022151528488269
- Joseph Aronovitz, M.D.Boston, MA 022151316995418
- Stuart Berman, M.D.Boston, MA 022151396770327
- Daniela Buscariollo, M.D.Boston, MA 022151265708960
- Joanne Jang, MDBoston, MA 022151225290729
- Martin King, MD PHDBoston, MA 022151750695201
- Tai Chung Lam, M.D.Boston, MA 022151235561382
Common questions
What is Irving David Kaplan, M.D.'s NPI number?
Irving David Kaplan, M.D.'s National Provider Identifier (NPI) is 1790719458, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Irving David Kaplan, M.D. located?
The NPPES record lists a practice address at Bidmc-Radiation Therapy, Boston, MA, 02215. Phone: (617) 667-2345. Providers update this record themselves, so call before visiting.
How can I verify Irving David Kaplan, M.D.'s license?
NPPES lists Massachusetts license number 76638, 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 Irving David Kaplan, M.D. prescribe under Medicare Part D?
In 2024, Irving David Kaplan, M.D. had 155 Medicare Part D claims for 53 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.