Robert A. Stein, MD
Radiation Oncology Physician · Worcester, MA
Robert A. Stein, MD is a radiation oncology physician with a practice address in Worcester, Massachusetts, and NPI 1720063076, issued on Dec 9, 2005. Check the license (Massachusetts 36483, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert A. Stein
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 36483 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (774) 442-5551
- Enumerated
- Dec 9, 2005
- Record last updated
- Nov 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (774) 442-5006
- Medicaid IDs
- 0036483 MA
008017648 CT - Medicare enrollment
- Enrolled (PECOS I20060505000170); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 241 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Paula Abate, NPNurse Practitioner1336265909
- Aly AbayazeedDiagnostic Radiology Physician1821221946
- Zainab AbbasDermatology Physician1609028000
- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Robert A. Stein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 36483Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average radiation oncology physician in 2024
16 Medicare Part D claims, 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.
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert A. Stein among 241 radiation oncology physician records in Massachusetts
Robert A. Stein, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1969 · median 2006 among the 172 with a school on file
- Record last updated2020 · 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 Worcester → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Maria Cicchetti, M.D.Worcester, MA 016551174506752
- Thomas Fitzgerald, M.D.Worcester, MA 016551982688214
- Daniel Han, MDWorcester, MA 016551831192301
- Sidney Kadish, M.D.Worcester, MA 016551659355915
- Eric Ko, M.D., PH.D.Worcester, MA 016551639345929
- Lily Lawn-Tsao, M.D.Worcester, MA 016551083609911
- Richard Pieters, M.D.Worcester, MA 016551902888324
- Mark Smyczynski, M.D.Worcester, MA 016551871661603
Common questions
What is Robert A. Stein, MD's NPI number?
Robert A. Stein, MD's National Provider Identifier (NPI) is 1720063076, issued on Dec 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert A. Stein, MD located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (774) 442-5551. Providers update this record themselves, so call before visiting.
How can I verify Robert A. Stein, MD's license?
NPPES lists Massachusetts license number 36483, 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 Robert A. Stein, MD prescribe under Medicare Part D?
In 2024, Robert A. Stein, MD had 16 Medicare Part D claims; 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.