NPPES file of Aug 9, 2026

Abigail Leigh Kluczewski, PA-C

Physician Assistant · Hartford, CT

Abigail Leigh Kluczewski, PA-C is a physician assistant with a practice address in Hartford, Connecticut, and NPI 1164859518, issued on Oct 1, 2013. Check the license (Connecticut 2993, as entered in NPPES) with the Connecticut 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
1164859518
Name
Abigail Leigh Kluczewski
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
2993 CT
Self-reported in NPPES; status is on the state search
Practice location
85 Seymour St Ste 609, Hartford, CT 06106
Phone
(860) 972-5107
Enumerated
Oct 1, 2013
Record last updated
Sep 18, 2025
Medicare enrollment
Enrolled (PECOS I20140113000755); accepts Medicare assignment
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 85 Seymour St Ste 609

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

  1. Jason Bitterman, MDPhysical Medicine & Rehabilitation Physician1023466455
  2. Arianna CaradonnaStudent in an Organized Health Care Education/Training Program1083343503
  3. Thaddeus Chuchla, DOStudent in an Organized Health Care Education/Training Program1861245805
  4. Gregory De Gruchy, MDPhysical Medicine & Rehabilitation Physician1093370025
  5. Anna Hackett, MDStudent in an Organized Health Care Education/Training Program1003750266
  6. Sarah Ishaq, DOStudent in an Organized Health Care Education/Training Program1053107862

Verify Abigail Leigh Kluczewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 2993
    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 Connecticut 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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91% fewer Medicare Part D claims than the average physician assistant in 2024

78 Medicare Part D claims for 46 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Abigail Kluczewski78
  2. Specialty average830

Most prescribed

  1. Famotidine20 claims
  2. Omeprazole15 claims
  3. Pantoprazole Sodium14 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): 85.1 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 score89.7
  2. Costout of 100 · 30%68.3
  3. Promoting interoperabilityout of 100 · 25%83.0
  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).

Industry payments in 2024: $53.35

2 payments; by number, the most common kind was food and beverage; the largest payer was Ipsen Biopharmaceuticals, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Abigail Kluczewski$53.35
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Hartford HospitalHartford, CT · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Abigail Leigh Kluczewski among 2,047 physician assistant records in Connecticut

Abigail Leigh Kluczewski, PA-C is one of 2,047 physician assistant records with a practice address in Connecticut. 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 2013, is newer than 35% of them.

  • NPI issued2013 · 35% of these records are older, 62% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2013 · median 2018 among the 1,338 with a school on file
  • Record last updated2025 · 42% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

283 physician assistant records list a practice address in Hartford

They are 283 of the 6,317 NPPES records with a practice address in Hartford, and 2,047 physician assistant records in Connecticut.

The 8 physician assistant records with the nearest ZIP codes

  1. James Alvarez, PHYSICIAN ASSISTANTHartford, CT 061061407853575
  2. Alan Armstrong, P.A.Hartford, CT 061061790761898
  3. Susan Barksdale, PHYSICAN ASSISTANTHartford, CT 061061235136300
  4. Diane Barnes, PHYSICIAN ASSISTANTHartford, CT 061061851398846
  5. Bruce Bowman, PAHartford, CT 061061952373755
  6. Michelle Brenes, PAHartford, CT 061061124090956
  7. Daniel De Jesus, PACHartford, CT 061061851373591
  8. Ann Gorjanc, PAHartford, CT 061061174596753

Common questions

What is Abigail Leigh Kluczewski, PA-C's NPI number?

Abigail Leigh Kluczewski, PA-C's National Provider Identifier (NPI) is 1164859518, issued on Oct 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Abigail Leigh Kluczewski, PA-C located?

The NPPES record lists a practice address at 85 Seymour St Ste 609, Hartford, CT, 06106. Phone: (860) 972-5107. Providers update this record themselves, so call before visiting.

How can I verify Abigail Leigh Kluczewski, PA-C's license?

NPPES lists Connecticut license number 2993, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Abigail Leigh Kluczewski, PA-C prescribe under Medicare Part D?

In 2024, Abigail Leigh Kluczewski, PA-C had 78 Medicare Part D claims for 46 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Abigail Leigh Kluczewski, PA-C's MIPS final score?

The 2023 MIPS final score is 85.1 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.