Registry data as of Aug 27, 2026

Leslie Barresi, PA-C

Physician Assistant · Boston, MA

Leslie Barresi, PA-C is a physician assistant with a practice address in Boston, Massachusetts, and NPI 1841626256, issued on Sep 17, 2013. Check the license with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1841626256
Name
Leslie Barresi
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
450 Brookline Ave, Boston, MA 02215
Phone
(617) 632-3000
Enumerated
Sep 17, 2013
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 450 Brookline Ave

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

  1. Gregory Abel, MDHematology & Oncology Physician1285611954
  2. Lara Abousamra, PHARMDAmbulatory Care Pharmacist1851183404
  3. Karley Adams, PAPhysician Assistant1578261764
  4. Lauren Adams, PA-CPhysician Assistant1902763469
  5. Ana Aguilar-Bonilla, M.D.Pediatrics Physician1023319761
  6. Andrew Aguirre, MD, PHDMedical Oncology Physician1609071208

Verify Leslie Barresi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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
Find 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.

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

36 Medicare Part D claims for 13 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.

  1. Leslie Barresi36
  2. Specialty average832

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 practice group's Medicare quality score for 2023: 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score69.4
  2. Costout of 100 · 30%
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

One hospital or facility affiliation

  1. Dana-Farber Cancer Institute, Inc.Boston, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

1,545 physician assistant records list a Boston practice address

They are 1,545 of the 41,865 NPPES records with a Boston practice address, and 4,482 physician assistant records in Massachusetts.

Other physician assistant records in Massachusetts

  1. Erin Abdallah, PA-CSwansea, MA1396417242
  2. Alexa Aboshar, PA-CTewksbury, MA1245623578
  3. Bhraana Abraham, PABoston, MA1649963661
  4. Keidelyn Abreu, PALawrence, MA1497488795
  5. Tatiana Achildiev, PAWorcester, MA1740532761
  6. Sophie Achilles, PA-CBoston, MA1992485965
  7. Ezra Acholonu, PASpringfield, MA1407221302
  8. Andrea Acosta, PA-CWest Roxbury, MA1336060953
  9. Colin ActonBoston, MA1346066701
  10. Wesam AdamBoston, MA1134945421

Common questions

What is Leslie Barresi, PA-C's NPI number?

Leslie Barresi, PA-C's National Provider Identifier (NPI) is 1841626256, issued on Sep 17, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Barresi, PA-C located?

The NPPES record lists a practice address at 450 Brookline Ave, Boston, MA, 02215. Phone: (617) 632-3000. Providers update this record themselves, so call before visiting.

How can I verify Leslie Barresi, PA-C's license?

Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Leslie Barresi, PA-C prescribe under Medicare Part D?

In 2024, Leslie Barresi, PA-C had 36 Medicare Part D claims for 13 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.

What is Leslie Barresi, PA-C's Medicare quality score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.