NPPES file of Aug 9, 2026

Kierstin Clark

Physician Assistant · Keene, NH

Kierstin Clark is a physician assistant with a practice address in Keene, New Hampshire, and NPI 1346989761, issued on Jun 2, 2022. Check the license (New Hampshire 1908, as entered in NPPES) with the New Hampshire 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
1346989761
Name
Kierstin Clark
Primary taxonomy
Physician Assistant 363A00000X
License number
1908 NH
Self-reported in NPPES; status is on the state search
Practice location
580 Court St, Keene, NH 03431
Phone
(603) 354-5400
Enumerated
Jun 2, 2022
Record last updated
Sep 15, 2022
Medicare enrollment
Enrolled (PECOS I20221020002205); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 2022
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 580 Court St

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

  1. Kelli-Ann Abbott, DPTPhysical Therapist1699155754
  2. Kristina Abbott, FNP-CFamily Nurse Practitioner1578368916
  3. Millen Abselab, MDStudent in an Organized Health Care Education/Training Program1740128479
  4. Anardi Agosto, M.D.Internal Medicine Physician1487090700
  5. Yousef Amr, MB BCHStudent in an Organized Health Care Education/Training Program1598515652
  6. Amy Ansaldo, RD, LDRegistered Dietitian1215796131

Verify Kierstin Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 1908
    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 New Hampshire 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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85% fewer Medicare Part D claims than the average physician assistant in 2024

127 Medicare Part D claims for 105 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Kierstin Clark127
  2. Specialty average830

Most prescribed

  1. Cephalexin21 claims
  2. Amoxicillin-Clavulanate Potass12 claims
  3. Prednisone12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76 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 score65.3
  2. Costout of 100 · 30%54.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bills Medicare through one group practice

  1. St. Joseph Hospital OF Nashua NHNashua, NH

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

Kierstin Clark among 947 physician assistant records in New Hampshire

Kierstin Clark is one of 947 physician assistant records with a practice address in New Hampshire. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 20% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2022 · median 2017 among the 730 with a school on file
  • Record last updated2022 · 37% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 physician assistant records list a practice address in Keene

They are 35 of the 1,482 NPPES records with a practice address in Keene, and 947 physician assistant records in New Hampshire.

The 8 physician assistant records with the nearest ZIP codes

  1. Payson Ayer-Dufner, PA-CKeene, NH 034311124424379
  2. Nancy Benda, PA-CKeene, NH 034311497836951
  3. Judith Carpenter, PAKeene, NH 034311235268301
  4. Christine Couture, PAKeene, NH 034311720069552
  5. Kristin Dunnell, P.A.Keene, NH 034311427474691
  6. Allison Ellia, PA-CKeene, NH 034311508881723
  7. Lauren Lavoie, PA-CKeene, NH 034311336573708
  8. Maureen Mahoney, PAKeene, NH 034311710175385

Common questions

What is Kierstin Clark's NPI number?

Kierstin Clark's National Provider Identifier (NPI) is 1346989761, issued on Jun 2, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Kierstin Clark located?

The NPPES record lists a practice address at 580 Court St, Keene, NH, 03431. Phone: (603) 354-5400. Providers update this record themselves, so call before visiting.

How can I verify Kierstin Clark's license?

NPPES lists New Hampshire license number 1908, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Kierstin Clark prescribe under Medicare Part D?

In 2024, Kierstin Clark had 127 Medicare Part D claims for 105 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Kierstin Clark's MIPS final score?

The 2023 MIPS final score is 76 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.