NPPES file of Aug 9, 2026

Peter J. Fagenholz, M.D.

Surgery Physician · Boston, MA

Peter J. Fagenholz, M.D. is a surgery physician with a practice address in Boston, Massachusetts, and NPI 1346319480, issued on Nov 6, 2006. Check the license (Massachusetts 228955, 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
1346319480
Name
Peter J. Fagenholz
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
228955 MA
Self-reported in NPPES; status is on the state search
Practice location
M.g.h.,dept. OF Surgery, Boston, MA 02114
Phone
(617) 726-3000
Enumerated
Nov 6, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110713000691); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 2002
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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Verify Peter J. Fagenholz 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 228955
    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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84% fewer Medicare Part D claims than the average surgery physician in 2024

24 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% of claims.

  1. Peter Fagenholz24
  2. Specialty average147

Most prescribed

  1. Creon17 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: $10,869.18

11 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Peter Fagenholz$10,869
  2. Specialty average$3,514

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

Bills Medicare through 2 group practices

  1. Massachusetts General Physicians Organization IncBoston, MA
  2. The General Hospital CorporationBoston, MA

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

Peter J. Fagenholz among 1,003 surgery physician records in Massachusetts

Peter J. Fagenholz, M.D. 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 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 58% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2002 · median 2003 among the 503 with a school on file
  • Record last updated2007 · 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).

443 surgery physician records list a practice address in Boston

They are 443 of the 41,865 NPPES records with a practice address in Boston, and 1,003 surgery physician records in Massachusetts.

The 8 surgery physician records with the nearest ZIP codes

  1. Hugh Auchincloss, MDBoston, MA 021141689655664
  2. David Berger, MDBoston, MA 021141710977327
  3. A Benedict Cosimi, MDBoston, MA 021141184614364
  4. Francis Delmonico, MDBoston, MA 021141518958446
  5. Charles Ferguson, MDBoston, MA 021141194716746
  6. Carlos Fernandez-Del-Castillo, MDBoston, MA 021141225029788
  7. Randall Gaz, MDBoston, MA 021141801886718
  8. Allan Goldstein, MDBoston, MA 021141124019740

Common questions

What is Peter J. Fagenholz, M.D.'s NPI number?

Peter J. Fagenholz, M.D.'s National Provider Identifier (NPI) is 1346319480, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter J. Fagenholz, M.D. located?

The NPPES record lists a practice address at M.g.h.,dept. OF Surgery, Boston, MA, 02114. Phone: (617) 726-3000. Providers update this record themselves, so call before visiting.

How can I verify Peter J. Fagenholz, M.D.'s license?

NPPES lists Massachusetts license number 228955, 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 Peter J. Fagenholz, M.D. prescribe under Medicare Part D?

In 2024, Peter J. Fagenholz, M.D. had 24 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.