Ritchell Van Dams, M.D.
Radiation Oncology Physician · Boston, MA
Ritchell Van Dams, M.D. is a radiation oncology physician with a practice address in Boston, Massachusetts, and NPI 1992156376, issued on Jun 27, 2016. Check the license (Massachusetts 289825, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ritchell Van Dams
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 289825 MA
Self-reported in NPPES; status is on the state search - Practice location
- 450 Brookline Ave, Boston, MA 02215
- Phone
- (617) 632-3000
- Enumerated
- Jun 27, 2016
- Record last updated
- Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210910000845); accepts Medicare assignment
- 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 450 Brookline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Abel, MDHematology & Oncology Physician1285611954
- Lara Abousamra, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1851183404
- Karley Adams, PAPhysician Assistant1578261764
- Lauren Adams, PA-CPhysician Assistant1902763469
- Ana Aguilar-Bonilla, M.D.Pediatric Hematology & Oncology Physician1023319761
- Andrew Aguirre, MD, PHDMedical Oncology Physician1609071208
Verify Ritchell Van Dams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 289825Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average radiation oncology physician in 2024
68 Medicare Part D claims for 37 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
- Ondansetron Hcl30 claims
- Omeprazole23 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 2 group practices
- Brigham And Womens Physicians Organization IncBoston, MA
- Dana-Farber Cancer Institute, Inc.Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ritchell Van Dams among 241 radiation oncology physician records in Massachusetts
Ritchell Van Dams, 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 2016, is newer than 75% of them.
- NPI issued2016 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2016 · median 2006 among the 172 with a school on file
- Record last updated2021 · 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
- Irving David Kaplan, M.D.Boston, MA 022151790719458
- Martin King, MD PHDBoston, MA 022151750695201
Common questions
What is Ritchell Van Dams, M.D.'s NPI number?
Ritchell Van Dams, M.D.'s National Provider Identifier (NPI) is 1992156376, issued on Jun 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ritchell Van Dams, M.D. located?
The NPPES record lists a practice address at 450 Brookline Ave, Boston, MA, 02215. Phone: (617) 632-3000. Providers update this record themselves, so call before visiting.
How can I verify Ritchell Van Dams, M.D.'s license?
NPPES lists Massachusetts license number 289825, 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 Ritchell Van Dams, M.D. prescribe under Medicare Part D?
In 2024, Ritchell Van Dams, M.D. had 68 Medicare Part D claims for 37 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.