NPPES file of Aug 9, 2026

Rebecca Porter, MD, PHD

Medical Oncology Physician · Boston, MA

Rebecca Porter, MD, PHD is a medical oncology physician with a practice address in Boston, Massachusetts, and NPI 1770921272, issued on Jun 6, 2013. Check the license (Massachusetts 267527, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770921272
Name
Rebecca Porter
Credential
MD, PHD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License numbers
267527 MA
256773 MA
Self-reported in NPPES; status is on the state search
Practice location
450 Brookline Ave, Boston, MA 02215
Phone
(617) 632-2175
Enumerated
Jun 6, 2013
Record last updated
May 21, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(617) 632-3479
Medicare enrollment
Enrolled (PECOS I20190604003286); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2013
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 450 Brookline Ave

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

  1. Gregory Abel, MDHematology & Oncology Physician1285611954
  2. Lara Abousamra, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1851183404
  3. Karley Adams, PAPhysician Assistant1578261764
  4. Lauren Adams, PA-CPhysician Assistant1902763469
  5. Ana Aguilar-Bonilla, M.D.Pediatric Hematology & Oncology Physician1023319761
  6. Andrew Aguirre, MD, PHDMedical Oncology Physician1609071208

Verify Rebecca Porter 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 267527
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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86% fewer Medicare Part D claims than the average medical oncology physician in 2024

96 Medicare Part D claims for 30 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.

  1. Rebecca Porter96
  2. Specialty average703

Most prescribed

  1. Prochlorperazine Maleate18 claims
  2. Ondansetron Hcl12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score69.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $183.15

3 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Rebecca Porter$183
  2. Specialty average$11,773

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.Boston, MA

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

Rebecca Porter among 421 medical oncology physician records in Massachusetts

Rebecca Porter, MD, PHD is one of 421 medical oncology physician records with a practice address in Massachusetts. 76% 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 70% of them.

  • NPI issued2013 · 70% of these records are older, 27% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2013 · median 2007 among the 291 with a school on file
  • Record last updated2019 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Massachusetts

There are 421 medical oncology physician records in Massachusetts.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Steven Come, M.D.Boston, MA 022151619940137
  2. David D'Adamo, MDBoston, MA 022151295706224
  3. George Demetri, MDBoston, MA 022151841267093
  4. William Hahn, MD PHDBoston, MA 022151457313652
  5. Joseph Jacobson, MDBoston, MA 022151942282041
  6. Bruce Johnson, MDBoston, MA 022151578523866
  7. Robert Mayer, MDBoston, MA 022151659361327
  8. Erica Mayer, MD MPHBoston, MA 022151336121789

Common questions

What is Rebecca Porter, MD, PHD's NPI number?

Rebecca Porter, MD, PHD's National Provider Identifier (NPI) is 1770921272, issued on Jun 6, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca Porter, MD, PHD located?

The NPPES record lists a practice address at 450 Brookline Ave, Boston, MA, 02215. Phone: (617) 632-2175. Providers update this record themselves, so call before visiting.

How can I verify Rebecca Porter, MD, PHD's license?

NPPES lists Massachusetts license number 267527, 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 Rebecca Porter, MD, PHD prescribe under Medicare Part D?

In 2024, Rebecca Porter, MD, PHD had 96 Medicare Part D claims for 30 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Rebecca Porter, MD, PHD's MIPS final score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.