NPPES file of Aug 9, 2026

Karen M. O'Neil, CNP

Adult Health Nurse Practitioner · Scituate, MA

Karen M. O'Neil, CNP is an adult health nurse practitioner with a practice address in Scituate, Massachusetts, and NPI 1659776144, issued on Oct 27, 2014. Check the license (Massachusetts RN150071, as entered in NPPES) 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659776144
Name
Karen M. O'Neil
Credential
CNP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
RN150071 MA
Self-reported in NPPES; status is on the state search
Practice location
5 Studley Royal RD, Scituate, MA 02066
Phone
(781) 545-7368
Enumerated
Oct 27, 2014
Record last updated
Oct 27, 2014 (not updated in 12 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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8 nearest adult health nurse practitioner records → All 1,465 in Massachusetts → Look up another NPI →

Verify Karen M. O'Neil in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN150071    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
Find the Massachusetts license search

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33% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

859 Medicare Part D claims for 226 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Karen O'Neil859
  2. Specialty average1,280

Most prescribed

  1. Calcitriol152 claims
  2. Furosemide80 claims
  3. Torsemide80 claims
  4. Amlodipine Besylate50 claims
  5. Lisinopril50 claims
  6. Allopurinol46 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.

Karen M. O'Neil among 1,465 adult health nurse practitioner records in Massachusetts

Karen M. O'Neil, CNP is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.

  • NPI issued2014 · 76% of these records are older, 20% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2014 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Massachusetts

There are 1,465 adult health nurse practitioner records in Massachusetts.

All 1,465 in Massachusetts → Every provider in Scituate → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. John Deckro, DNP, ANP-BCSharon, MA 020671881204295
  2. Lori Hixon, NPSharon, MA 020671538464896
  3. Craig Pisani, NPSharon, MA 020671306934591
  4. Maura Ryan, NPSharon, MA 020671851316202
  5. Michelle Bonnette, NP-CNorwood, MA 020621174839955
  6. Mary Dockery, NPNorwood, MA 020621659695104
  7. Stanley Galas, NPNorwood, MA 020621396769105
  8. Susan Judge Burns, NPNorwood, MA 020621073556981

Common questions

What is Karen M. O'Neil, CNP's NPI number?

Karen M. O'Neil, CNP's National Provider Identifier (NPI) is 1659776144, issued on Oct 27, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Karen M. O'Neil, CNP located?

The NPPES record lists a practice address at 5 Studley Royal RD, Scituate, MA, 02066. Phone: (781) 545-7368. Providers update this record themselves, so call before visiting.

How can I verify Karen M. O'Neil, CNP's license?

NPPES lists Massachusetts license number RN150071, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Karen M. O'Neil, CNP prescribe under Medicare Part D?

In 2024, Karen M. O'Neil, CNP had 859 Medicare Part D claims for 226 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.