NPPES file of Aug 9, 2026

Marion Eva Buchsbaum, MD

Dermatology Physician · Lexington, MA

Marion Eva Buchsbaum, MD is a dermatology physician with a practice address in Lexington, Massachusetts, and NPI 1730270851, issued on Sep 27, 2006. Check the license (Massachusetts 77498, 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
1730270851
Name
Marion Eva Buchsbaum
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
77498 MA
Self-reported in NPPES; status is on the state search
Practice location
57 Bedford Street, Lexington, MA 02420
Phone
(781) 862-2322
Enumerated
Sep 27, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(781) 863-0927
Medicare enrollment
Enrolled (PECOS I20050609000162); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1989
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 57 Bedford Street

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

  1. Ralph Freidin, MDInternal Medicine Physician1609967298
  2. Charles Hur, DMDGeneral Practice Dentistry1285854505
  3. Jill Rebecca Slater-Freedberg, M.D.Dermatology Physician1255389425
  4. Amy Xiong, DNP, FNP-BCFamily Nurse Practitioner1952291643

Verify Marion Eva Buchsbaum 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 77498
    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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41% fewer Medicare Part D claims than the average dermatology physician in 2024

468 Medicare Part D claims for 242 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Marion Buchsbaum468
  2. Specialty average797

Most prescribed

  1. Ketoconazole111 claims
  2. Triamcinolone Acetonide90 claims
  3. Metronidazole53 claims
  4. Mupirocin28 claims
  5. Betamethasone Diprop Augmented19 claims
  6. Betamethasone Dipropionate19 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 MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Bills Medicare through one group practice

  1. Lexington-Waltham Dermatology Group IncLexington, MA

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

Marion Eva Buchsbaum among 627 dermatology physician records in Massachusetts

Marion Eva Buchsbaum, MD is one of 627 dermatology physician records with a practice address in Massachusetts. 83% 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 11% of them.

  • NPI issued2006 · 11% of these records are older, 61% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1989 · median 2008 among the 445 with a school on file
  • Record last updated2007 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Massachusetts

There are 627 dermatology physician records in Massachusetts.

The 8 dermatology physician records with the nearest ZIP codes

  1. Lisa Arbesfeld, MDLexington, MA 024201548351679
  2. Jill Rebecca Slater-Freedberg, M.D.Lexington, MA 024201255389425
  3. Rachael Clark, MD PHDBrookline, MA 024451053378315
  4. Vladyslava Doktor, D.O.Brookline, MA 024451407246499
  5. Brian Lester, MDBrookline, MA 024451508857848
  6. Mitchell Rubenstein, MDBrookline, MA 024451003873126
  7. Eric Schwartz, MDBrookline, MA 024451316046139
  8. Steven Shama, MDBrookline, MA 024451386630226

Common questions

What is Marion Eva Buchsbaum, MD's NPI number?

Marion Eva Buchsbaum, MD's National Provider Identifier (NPI) is 1730270851, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marion Eva Buchsbaum, MD located?

The NPPES record lists a practice address at 57 Bedford Street, Lexington, MA, 02420. Phone: (781) 862-2322. Providers update this record themselves, so call before visiting.

How can I verify Marion Eva Buchsbaum, MD's license?

NPPES lists Massachusetts license number 77498, 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 Marion Eva Buchsbaum, MD prescribe under Medicare Part D?

In 2024, Marion Eva Buchsbaum, MD had 468 Medicare Part D claims for 242 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Marion Eva Buchsbaum, MD's MIPS final score?

The 2023 MIPS final score is 0 of 100. 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.