NPPES file of Aug 9, 2026

Katelyn Jean Maronn, PA-C

Physician Assistant · Westford, MA

Katelyn Jean Maronn, PA-C is a physician assistant with a practice address in Westford, Massachusetts, and NPI 1932776408, issued on Jun 4, 2021. Check the license (Massachusetts PA8149, 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
1932776408
Name
Katelyn Jean Maronn
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA8149 MA
Self-reported in NPPES; status is on the state search
Practice location
133 Littleton RD, Westford, MA 01886
Phone
(978) 577-1946
Enumerated
Jun 4, 2021
Record last updated
Sep 20, 2024
Medicare enrollment
Enrolled (PECOS I20210914001572); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 133 Littleton RD

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

  1. Brad Alpert, MDPediatrics Physician1245209873
  2. Andreas Athanasiou, MDPediatrics Physician1972590958
  3. Seema Azam, M.D.Internal Medicine Physician1043278054
  4. Tak-Yin Chau, O.D.Optometrist1346392990
  5. James Cohen, M.D.Internal Medicine Physician1013965003
  6. Maureen Dinapoli, NPPediatric Nurse Practitioner1659467389

Verify Katelyn Jean Maronn 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 PA8149
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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19% more Medicare Part D claims than the average physician assistant in 2024

990 Medicare Part D claims for 400 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Katelyn Maronn990
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium57 claims
  2. Amlodipine Besylate47 claims
  3. Lisinopril42 claims
  4. Doxycycline Monohydrate41 claims
  5. Amoxicillin-Clavulanate Potass36 claims
  6. Losartan Potassium35 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.

Bills Medicare through one group practice

  1. Mass General Brigham Community Physicians IncWestford, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katelyn Jean Maronn among 4,713 physician assistant records in Massachusetts

Katelyn Jean Maronn, 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 2021, is newer than 63% of them.

  • NPI issued2021 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2021 · median 2019 among the 3,217 with a school on file
  • Record last updated2024 · 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).

8 physician assistant records list a practice address in Westford

They are 8 of the 349 NPPES records with a practice address in Westford, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Colleen Browne, PA-CWestford, MA 018861730011131
  2. Hannah Kullberg, PA-CWestford, MA 018861184421356
  3. Jennifer LauWestford, MA 018861821816109
  4. Samantha Niven, PAWestford, MA 018861447006762
  5. Devin Stimpson, PA-CWestford, MA 018861811499130
  6. Ryan Van Dam, PAWestford, MA 018861639616949
  7. Jessica Wright, PA-CWestford, MA 018861982838355
  8. Stephanie Barczak, PAWilmington, MA 018871144847252

Common questions

What is Katelyn Jean Maronn, PA-C's NPI number?

Katelyn Jean Maronn, PA-C's National Provider Identifier (NPI) is 1932776408, issued on Jun 4, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Katelyn Jean Maronn, PA-C located?

The NPPES record lists a practice address at 133 Littleton RD, Westford, MA, 01886. Phone: (978) 577-1946. Providers update this record themselves, so call before visiting.

How can I verify Katelyn Jean Maronn, PA-C's license?

NPPES lists Massachusetts license number PA8149, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Katelyn Jean Maronn, PA-C prescribe under Medicare Part D?

In 2024, Katelyn Jean Maronn, PA-C had 990 Medicare Part D claims for 400 beneficiaries; the average among physician assistant prescribers was 830. 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.