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Compare the published Medicare service mix of Matthew Abar, PA with clinicians in the same registry specialty: Physician Assistant (CMS).

MA · Exact areaEdit location

2024 published service data · 470 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Elizabeth Lapointe, PA-C

Physician Assistant (CMS) · Leominster, MA

Shared published services
3 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
53%Service-mix similarityView profile →

Artemis Diane Panagopoulos, PA-C

Physician Assistant (CMS) · Nantucket, MA

Shared published services
3 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
43%Service-mix similarityView profile →

Lindsey Kathryn Phelan

Physician Assistant (CMS) · Hyannis, MA

Shared published services
3 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
42%Service-mix similarityView profile →

Aron Randall Nigh, PA-C

Physician Assistant (CMS) · Falmouth, MA

Shared published services
3 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
39%Service-mix similarityView profile →

Sarah Beth Callahan

Specialty details in registry · Falmouth, MA

Shared published services
2 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
38%Service-mix similarityView profile →

Kristin E Veillette, PA-C

Physician Assistant (CMS) · Melrose, MA

Shared published services
2 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
34%Service-mix similarityView profile →

Michael S Ruggiero, PA

Physician Assistant (CMS) · Peabody, MA

Shared published services
2 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
33%Service-mix similarityView profile →

Makenna Camara

Physician Assistant (CMS) · North Dartmouth, MA

Shared published services
2 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
33%Service-mix similarityView profile →

Amber Patrice Contrastan, PA-C

Physician Assistant (CMS) · Saugus, MA

Shared published services
2 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
32%Service-mix similarityView profile →

Meghan Colleen Perkins, PA-C

Physician Assistant (CMS) · West Roxbury, MA

Shared published services
2 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)
31%Service-mix similarityView profile →

Rachel Decesar, PA-C

Physician Assistant (CMS) · Pembroke, MA

Shared published services
2 shared services · view billing descriptions
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)
30%Service-mix similarityView profile →

Fiona Debra Johansmeyer, PA

Physician Assistant (CMS) · East Walpole, MA

Shared published services
2 shared services · view billing descriptions
  • Urinalysis, manual test (81002)
  • Detection test by immunoassay with direct visual observation for influenza virus (87804)
30%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.