NPPES file of Aug 9, 2026

Nathan E. Kaufman, MD

Internal Medicine Physician · Marblehead, MA

Nathan E. Kaufman, MD is an internal medicine physician with a practice address in Marblehead, Massachusetts, and NPI 1922054600, issued on May 25, 2006. Check the license (Massachusetts 57474, 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
1922054600
Name
Nathan E. Kaufman
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
57474 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Widger RD, Marblehead, MA 01945
Phone
(781) 631-1415
Enumerated
May 25, 2006
Record last updated
Jul 17, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(781) 631-5175
Medicaid ID
3024024 MA
Medicare enrollment
Enrolled (PECOS I20050415000112); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1982
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.
Download card Updates feed

Also registered at 1 Widger RD

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

  1. Fawn Anderson, PTPhysical Therapist1154306439
  2. Nancy Bertaux, NPNurse Practitioner1629028121
  3. Ryan Birch, DPT, PTPhysical Therapist1225322241
  4. John-Michael Bona, O.D.Optometrist1003977661
  5. Kelley Braun, RPTPhysical Therapist1265767883
  6. Michael Capps, DPT, GCSPhysical Therapist1376919415

Verify Nathan E. Kaufman 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 57474
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

96% fewer Medicare Part D claims than the average internal medicine physician in 2024

136 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Nathan Kaufman136
  2. Specialty average3,176

Most prescribed

  1. Omeprazole12 claims
  2. Albuterol Sulfate Hfa11 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.

Bills Medicare through one group practice

  1. Mass General Brigham Medical Group Northern Massachusetts IncMarblehead, MA

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

Nathan E. Kaufman among 6,825 internal medicine physician records in Massachusetts

Nathan E. Kaufman, MD is one of 6,825 internal medicine 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1982 · median 2004 among the 4,103 with a school on file
  • Record last updated2007 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 internal medicine physician records list a practice address in Marblehead

They are 8 of the 263 NPPES records with a practice address in Marblehead, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Stephanie Green, M.D.Marblehead, MA 019451942383310
  2. William Macomber, MDMarblehead, MA 019451033165717
  3. Carmela Mancini, DO, MPHMarblehead, MA 019451750524526
  4. Susan Moynihan, MDMarblehead, MA 019451912953605
  5. Michael Silverman, M.D.Marblehead, MA 019451811958002
  6. Jechezkiel Skowronski, MDMarblehead, MA 019451518913326
  7. David Tamaren, M.D.Marblehead, MA 019451376583815
  8. Stephen Beaudoin, M.D.Newburyport, MA 019501902808124

Common questions

What is Nathan E. Kaufman, MD's NPI number?

Nathan E. Kaufman, MD's National Provider Identifier (NPI) is 1922054600, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathan E. Kaufman, MD located?

The NPPES record lists a practice address at 1 Widger RD, Marblehead, MA, 01945. Phone: (781) 631-1415. Providers update this record themselves, so call before visiting.

How can I verify Nathan E. Kaufman, MD's license?

NPPES lists Massachusetts license number 57474, 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 Nathan E. Kaufman, MD prescribe under Medicare Part D?

In 2024, Nathan E. Kaufman, MD had 136 Medicare Part D claims for 57 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.