NPPES file of Aug 9, 2026

Robb Scott Friedman, M.D.

Hematology & Oncology Physician · Boston, MA

Robb Scott Friedman, M.D. is a hematology & oncology physician with a practice address in Boston, Massachusetts, and NPI 1669451514, issued on Jan 10, 2006. Check the license (Massachusetts 221819, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669451514
Name
Robb Scott Friedman
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
221819 MA
Self-reported in NPPES; status is on the state search
Practice location
133 Brookline Ave, Boston, MA 02215
Phone
(617) 421-5950
Enumerated
Jan 10, 2006
Record last updated
Jul 21, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(617) 421-6008
Medicaid ID
110075540A MA
Medicare enrollment
Enrolled (PECOS I20050808000914); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1997
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 133 Brookline Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shari Abramowitz, M.D.Pediatrics Physician1558346593
  2. Maansi AgheraAudiologist1225887292
  3. Nathalie Alexis, PSY.D.Clinical Psychologist1245886993
  4. Marina Alfisher, MDDiagnostic Radiology Physician1417925207
  5. Andrew Allmendinger, DODiagnostic Radiology Physician1972820942
  6. Dana An, LCSWClinical Social Worker1215108238

Verify Robb Scott Friedman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 221819
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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35% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

572 Medicare Part D claims for 166 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims. 18 claims were for opioids.

  1. Robb Friedman572
  2. Specialty average877

Most prescribed

  1. Hydroxyurea113 claims
  2. Brukinsa76 claims
  3. Eliquis43 claims
  4. Acyclovir35 claims
  5. Lorazepam22 claims
  6. Jakafi21 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: $20,662.85

37 payments; by number, the most common kind was food and beverage; the largest payer was Genmab U.S., Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robb Friedman$20,663
  2. Specialty average$7,481

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dana-Farber Cancer Institute, Inc.South Weymouth, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robb Scott Friedman among 461 hematology & oncology physician records in Massachusetts

Robb Scott Friedman, M.D. is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% 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, 50% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1997 · median 2004 among the 303 with a school on file
  • Record last updated2011 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Massachusetts

There are 461 hematology & oncology physician records in Massachusetts.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Gregory Abel, MDBoston, MA 022151285611954
  2. Nancy Andrea, M.D.Boston, MA 022151033193719
  3. David Avigan, M.D.Boston, MA 022151952349243
  4. David Barbie, MDBoston, MA 022151164401626
  5. Christopher Lee Carpenter, M.D.Boston, MA 022151083651798
  6. Bimalangshu Dey, MDBoston, MA 022151679563845
  7. Leena Gandhi, MD PHDBoston, MA 022151841275906
  8. J Paul Marcoux, MDBoston, MA 022151790746907

Common questions

What is Robb Scott Friedman, M.D.'s NPI number?

Robb Scott Friedman, M.D.'s National Provider Identifier (NPI) is 1669451514, issued on Jan 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robb Scott Friedman, M.D. located?

The NPPES record lists a practice address at 133 Brookline Ave, Boston, MA, 02215. Phone: (617) 421-5950. Providers update this record themselves, so call before visiting.

How can I verify Robb Scott Friedman, M.D.'s license?

NPPES lists Massachusetts license number 221819, 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 Robb Scott Friedman, M.D. prescribe under Medicare Part D?

In 2024, Robb Scott Friedman, M.D. had 572 Medicare Part D claims for 166 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.