NPPES file of Aug 9, 2026

Catherine Harrington

Adult Health Nurse Practitioner · Waltham, MA

Catherine Harrington is an adult health nurse practitioner with a practice address in Waltham, Massachusetts, and NPI 1669862736, issued on Jan 28, 2015. Check the license (Massachusetts RN2275639, 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
1669862736
Name
Catherine Harrington
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
RN2275639 MA
Self-reported in NPPES; status is on the state search
Practice location
950 Winter St, Waltham, MA 02451
Phone
(617) 794-5314
Enumerated
Jan 28, 2015
Record last updated
Dec 7, 2023
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 950 Winter St

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

  1. Francisca Adams, MSN, APRN, BCGerontology Nurse Practitioner1477603819
  2. Kerry Assarian, NPAdult Health Nurse Practitioner1457499923
  3. Marina Borocov, NPGerontology Nurse Practitioner1326372483
  4. Anne Marie Bourque, NPNurse Practitioner1871544981
  5. Karin Broden, NPAdult Health Nurse Practitioner1134141427
  6. Florence Calore, R.N., MS. NPGerontology Nurse Practitioner1942367552

Verify Catherine Harrington 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 RN2275639
    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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30% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

891 Medicare Part D claims for 61 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 51 claims were for opioids.

  1. Catherine Harrington891
  2. Specialty average1,280

Most prescribed

  1. Levothyroxine Sodium63 claims
  2. Eliquis49 claims
  3. Clonazepam43 claims
  4. Lorazepam39 claims
  5. Atorvastatin Calcium38 claims
  6. Furosemide35 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.

Catherine Harrington among 1,465 adult health nurse practitioner records in Massachusetts

Catherine Harrington 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 2015, is newer than 80% of them.

  • NPI issued2015 · 80% of these records are older, 18% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2023 · 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).

30 adult health nurse practitioner records list a practice address in Waltham

They are 30 of the 2,111 NPPES records with a practice address in Waltham, and 1,465 adult health nurse practitioner records in Massachusetts.

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

  1. Kerry Assarian, NPWaltham, MA 024511457499923
  2. Karin Broden, NPWaltham, MA 024511134141427
  3. Margaret Carey, ANPWaltham, MA 024511881746972
  4. Kerry Kilroy, APRN-BCWaltham, MA 024511548327638
  5. Hadassah Kneppel, NPWaltham, MA 024511639285976
  6. Michelle Knowles, ANP-BCWaltham, MA 024511659416139
  7. Jeremiah McArthur, APRNWaltham, MA 024511366769721
  8. Laura McCarthy, NPWaltham, MA 024511366593444

Common questions

What is Catherine Harrington's NPI number?

Catherine Harrington's National Provider Identifier (NPI) is 1669862736, issued on Jan 28, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Harrington located?

The NPPES record lists a practice address at 950 Winter St, Waltham, MA, 02451. Phone: (617) 794-5314. Providers update this record themselves, so call before visiting.

How can I verify Catherine Harrington's license?

NPPES lists Massachusetts license number RN2275639, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Catherine Harrington prescribe under Medicare Part D?

In 2024, Catherine Harrington had 891 Medicare Part D claims for 61 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.

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.