NPPES file of Aug 9, 2026

Sonya Oneill, PA-C

Physician Assistant · Boston, MA

Sonya Oneill, PA-C is a physician assistant with a practice address in Boston, Massachusetts, and NPI 1346697422, issued on May 19, 2016. Check the license with the Massachusetts board that licenses this profession; 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
1346697422
Name
Sonya Oneill
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
78 Oakton Ave, Boston, MA 02122
Phone
(978) 609-5349
Enumerated
May 19, 2016
Record last updated
May 3, 2017 (not updated in 9 years: call before relying on the address or phone)
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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Verify Sonya Oneill 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
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96% fewer Medicare Part D claims than the average physician assistant in 2024

31 Medicare Part D claims for 24 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Sonya Oneill31
  2. Specialty average830

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 MIPS final score for 2023 (Medicare payment program): 82.8 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 score88.3
  2. Costout of 100 · 30%69.5
  3. Promoting interoperabilityout of 100 · 25%70.0
  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).

Sonya Oneill among 4,713 physician assistant records in Massachusetts

Sonya Oneill, PA-C is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 36% of them.

  • NPI issued2016 · 36% of these records are older, 60% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2017 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,660 physician assistant records list a practice address in Boston

They are 1,660 of the 41,865 NPPES records with a practice address in Boston, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Cassidy GriffinDorchester, MA 021221477170223
  2. Mary O'Dwyer, PADorchester, MA 021221659930295
  3. Craig Ushkurnis, PA-CDorchester, MA 021221477513422
  4. Effie MorgensternBoston, MA 021211528734589
  5. Justin Bryan, PABoston, MA 021201982180196
  6. Ying Buckley, PADorchester, MA 021241770622888
  7. Ellen Busher, PACBoston, MA 021201265708382
  8. Schaillee Butler, PABoston, MA 021201174875751

Common questions

What is Sonya Oneill, PA-C's NPI number?

Sonya Oneill, PA-C's National Provider Identifier (NPI) is 1346697422, issued on May 19, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Sonya Oneill, PA-C located?

The NPPES record lists a practice address at 78 Oakton Ave, Boston, MA, 02122. Phone: (978) 609-5349. Providers update this record themselves, so call before visiting.

How can I verify Sonya Oneill, PA-C's license?

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

How much does Sonya Oneill, PA-C prescribe under Medicare Part D?

In 2024, Sonya Oneill, PA-C had 31 Medicare Part D claims for 24 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Sonya Oneill, PA-C's MIPS final score?

The 2023 MIPS final score is 82.8 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), 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.