NPPES file of Aug 9, 2026

Sean Singer

Dermatology Physician · Boston, MA

Sean Singer is a dermatology physician with a practice address in Boston, Massachusetts, and NPI 1528695772, issued on Mar 26, 2020. Check the license (Massachusetts 1019736, 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
1528695772
Name
Sean Singer
Primary taxonomy
Dermatology Physician 207N00000X
License number
1019736 MA
Self-reported in NPPES; status is on the state search
Practice location
221 Longwood Ave Ste 149, Boston, MA 02115
Phone
(617) 732-5500
Enumerated
Mar 26, 2020
Record last updated
Jun 11, 2026
Medicare enrollment
Enrolled (PECOS I20240617000177); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2020
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 221 Longwood Ave Ste 149

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

  1. Claire Alexanian, MDDermatology Physician1881217263
  2. Stephanie Cohen, MDDermatology Physician1982267068
  3. Melissa Levoska, MDDermatology Physician1376040584
  4. Evan Piette, M.D.Dermatology Physician1326331653
  5. Nina Ran, MDMOHS-Micrographic Surgery Physician1164915047

Verify Sean Singer 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 1019736
    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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67% fewer Medicare Part D claims than the average dermatology physician in 2024

261 Medicare Part D claims for 134 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Sean Singer261
  2. Specialty average797

Most prescribed

  1. Ketoconazole50 claims
  2. Triamcinolone Acetonide32 claims
  3. Clobetasol Propionate25 claims
  4. Doxycycline Monohydrate13 claims
  5. Tacrolimus12 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 2 group practices

  1. Brigham And Womens Physicians Organization IncBoston, MA
  2. 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).

Sean Singer among 627 dermatology physician records in Massachusetts

Sean Singer 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 2020, is newer than 87% of them.

  • NPI issued2020 · 87% of these records are older, 9% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2020 · median 2008 among the 445 with a school on file
  • Record last updated2026 · 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. Niroshana Anandasabapathy, MD PHDBoston, MA 021151316145717
  2. Susan Burgin, M.D.Boston, MA 021151174580906
  3. Elizabeth Buzney, MDBoston, MA 021151881720621
  4. Lynda Chin, M.D.Boston, MA 021151437210143
  5. Caroline Kim, M.D.Boston, MA 021151386602753
  6. Kubinne Kim, MDBoston, MA 021151437341401
  7. Thomas Kupper, MDBoston, MA 021151548227945
  8. Vincent Li, MDBoston, MA 021151427093624

Common questions

What is Sean Singer's NPI number?

Sean Singer's National Provider Identifier (NPI) is 1528695772, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Sean Singer located?

The NPPES record lists a practice address at 221 Longwood Ave Ste 149, Boston, MA, 02115. Phone: (617) 732-5500. Providers update this record themselves, so call before visiting.

How can I verify Sean Singer's license?

NPPES lists Massachusetts license number 1019736, 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 Sean Singer prescribe under Medicare Part D?

In 2024, Sean Singer had 261 Medicare Part D claims for 134 beneficiaries; the average among dermatology physician prescribers was 797. 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.