NPPES file of Aug 9, 2026

Heather Lynne Kirby Clarke, PA-C

Physician Assistant · Easthampton, MA

Heather Lynne Kirby Clarke, PA-C is a physician assistant with a practice address in Easthampton, Massachusetts, and NPI 1366074122, issued on Feb 10, 2020. Check the license (Massachusetts PA7409, 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
1366074122
Name
Heather Lynne Kirby Clarke
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA7409 MA
Self-reported in NPPES; status is on the state search
Practice location
238 Northampton St, Easthampton, MA 01027
Phone
(413) 529-9300
Enumerated
Feb 10, 2020
Record last updated
Nov 4, 2024
Fax
(866) 644-0870
Medicare enrollment
Enrolled (PECOS I20200423002102); 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 238 Northampton St

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

  1. Mary Adler, M.D.Internal Medicine Physician1508894676
  2. Laura Aierstuck, NPPrimary Care Nurse Practitioner1326690298
  3. Emma Ash, FNP-BCFamily Nurse Practitioner1336967744
  4. Elaine Beaudoin, LICSW,LADCClinical Social Worker1205936846
  5. Elisabeth BorkowskiMedical Physician Assistant1154192854
  6. Allyson Boucher, PAPhysician Assistant1962147538

Verify Heather Lynne Kirby Clarke 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 PA7409
    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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3.4 times the Medicare Part D claims of the average physician assistant in 2024

2,817 Medicare Part D claims for 366 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 241 claims were for opioids.

  1. Heather Clarke2,817
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium161 claims
  2. Buprenorphine-Naloxone118 claims
  3. Oxycodone Hcl109 claims
  4. Lisinopril108 claims
  5. Gabapentin98 claims
  6. Amlodipine Besylate79 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 2 group practices

  1. ON Call Urgent Care, LLCIndian Orchard, MA
  2. Valley Medical Group PCEasthampton, MA

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

Heather Lynne Kirby Clarke among 4,713 physician assistant records in Massachusetts

Heather Lynne Kirby Clarke, 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 2020, is newer than 56% of them.

  • NPI issued2020 · 56% of these records are older, 37% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2019 · 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).

7 physician assistant records list a practice address in Easthampton

They are 7 of the 426 NPPES records with a practice address in Easthampton, and 4,713 physician assistant records in Massachusetts.

The 8 physician assistant records with the nearest ZIP codes

  1. Allyson Boucher, PAEasthampton, MA 010271962147538
  2. Lauren GorskiEasthampton, MA 010271497233977
  3. Aaron Grinstein, PAEasthampton, MA 010271457762106
  4. Sabrina Kane, PA-CEasthampton, MA 010271598498438
  5. Trisha Rogers, PA-CEasthampton, MA 010271407198583
  6. Alexandra West, PAEasthampton, MA 010271366266785
  7. Raffaele Albano, PAEast Longmeadow, MA 010281679194757
  8. Sarah Delisle, PAEast Longmeadow, MA 010281386873594

Common questions

What is Heather Lynne Kirby Clarke, PA-C's NPI number?

Heather Lynne Kirby Clarke, PA-C's National Provider Identifier (NPI) is 1366074122, issued on Feb 10, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Heather Lynne Kirby Clarke, PA-C located?

The NPPES record lists a practice address at 238 Northampton St, Easthampton, MA, 01027. Phone: (413) 529-9300. Providers update this record themselves, so call before visiting.

How can I verify Heather Lynne Kirby Clarke, PA-C's license?

NPPES lists Massachusetts license number PA7409, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Heather Lynne Kirby Clarke, PA-C prescribe under Medicare Part D?

In 2024, Heather Lynne Kirby Clarke, PA-C had 2,817 Medicare Part D claims for 366 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.