NPPES file of Aug 9, 2026

Joel Joseph Feldman, MD

Surgery Physician · Cambridge, MA

Joel Joseph Feldman, MD is a surgery physician with a practice address in Cambridge, Massachusetts, and NPI 1780674804, issued on Oct 28, 2005. Check the license (Massachusetts 39237, 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
1780674804
Name
Joel Joseph Feldman
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
39237 MA
Self-reported in NPPES; status is on the state search
Practice location
300 Mount Auburn St, Cambridge, MA 02138
Phone
(617) 661-5998
Enumerated
Oct 28, 2005
Record last updated
Jul 13, 2026
Fax
(617) 661-6438
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 300 Mount Auburn St

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

  1. Karen Ahlert, M.D.Surgery Physician1083819502
  2. John Anderson, MDGeriatric Medicine (Internal Medicine) Physician1568462620
  3. Daniel Asnes, M.D.Psychiatry Physician1316093628
  4. Julio Ayala, MDGastroenterology Physician1104883347
  5. Elizabeth Baker, M.D.Obstetrics & Gynecology Physician1659579969
  6. Paul Bertozzi, MDPulmonary Disease Physician1346312733

Verify Joel Joseph Feldman 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 39237
    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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92% fewer Medicare Part D claims than the average surgery physician in 2024

12 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.

  1. Joel Feldman12
  2. Specialty average147

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.

Joel Joseph Feldman among 1,003 surgery physician records in Massachusetts

Joel Joseph Feldman, MD is one of 1,003 surgery physician records with a practice address in Massachusetts. 66% 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, 87% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2026 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Massachusetts

There are 1,003 surgery physician records in Massachusetts.

The 8 surgery physician records with the nearest ZIP codes

  1. Karen Ahlert, M.D.Cambridge, MA 021381083819502
  2. Aram Demirjian, M.D.Cambridge, MA 021381164661906
  3. Gabrielle Dombek, MDCambridge, MA 021381699160804
  4. Michael Dombek, MDCambridge, MA 021381366837536
  5. Michelle Fakler, M.D.Cambridge, MA 021381932593597
  6. Jordan Gutweiler, MDCambridge, MA 021381811079536
  7. John Kenagy, M.D.Cambridge, MA 021381548460850
  8. Julie Kim, MDCambridge, MA 021381851305049

Common questions

What is Joel Joseph Feldman, MD's NPI number?

Joel Joseph Feldman, MD's National Provider Identifier (NPI) is 1780674804, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Joel Joseph Feldman, MD located?

The NPPES record lists a practice address at 300 Mount Auburn St, Cambridge, MA, 02138. Phone: (617) 661-5998. Providers update this record themselves, so call before visiting.

How can I verify Joel Joseph Feldman, MD's license?

NPPES lists Massachusetts license number 39237, 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 Joel Joseph Feldman, MD prescribe under Medicare Part D?

In 2024, Joel Joseph Feldman, MD had 12 Medicare Part D claims; the average among surgery physician prescribers was 147. 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.