Registry data as of Aug 27, 2026

Abigail Klein, APRN

Family Nurse Practitioner · Granby, CT

Abigail Klein, APRN is a family nurse practitioner with a practice address in Granby, Connecticut, and NPI 1003248634, issued on Aug 6, 2013. Check the license (Connecticut 5427, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1003248634
Name
Abigail Klein
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
5427 CT
Self-reported in NPPES; status is on the state search
Practice location
20 Bank Street, Granby, CT 06035
Phone
(866) 389-2727
Enumerated
Aug 6, 2013
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 20 Bank Street

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

  1. Greg DenalskyPharmacist1285085993
  2. Amy Qiu, PHARMDPharmacist1093217010

Verify Abigail Klein 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 5427
    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.

60% fewer Medicare Part D claims than the average family nurse practitioner in 2024

527 Medicare Part D claims for 148 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D.

  1. Abigail Klein527
  2. Specialty average1,302

Most prescribed

  1. Metformin Hcl160 claims
  2. Ozempic131 claims
  3. Topiramate66 claims
  4. Metformin Hcl Er52 claims
  5. Mounjaro39 claims
  6. Bupropion Xl29 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 Medicare quality score for 2023: 84.5 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 score79.3
  2. Costout of 100 · 30%59.6
  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).

Industry payments in 2024: $125.00

1 payment, mostly food and beverage; the largest payer was Novo Nordisk Inc. The 91,435 providers of this specialty with any payment received $675.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Abigail Klein$125.00
  2. Specialty average$675.31

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

One hospital or facility affiliation

  1. Hartford Healthcare Medical Group Specialists PLLCFarmington, CT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

1 family nurse practitioner records list a Granby practice address

They are 1 of the 60 NPPES records with a Granby practice address, and 2,315 family nurse practitioner records in Connecticut.

Other family nurse practitioner records in Connecticut

  1. Renato Abastillas, APRNRocky Hill, CT1568795821
  2. Farhiya AbdiSouth Windsor, CT1609382027
  3. Maryam Abdishoo, NPPutnam, CT1275143778
  4. Anwar Abdulrehman, APRNWaterbury, CT1194614255
  5. Talita Acciari, APRNNew Haven, CT1275469777
  6. Denise AceStratford, CT1003572033
  7. Tara Ackerly, FNPDanbury, CT1831331602
  8. Magdaline Ackers, FNPMiddletown, CT1801633896
  9. Rimanatou Adamou-DodoHartford, CT1588532980
  10. Stephanie Adams, APRNNorwich, CT1467946152

Common questions

What is Abigail Klein, APRN's NPI number?

Abigail Klein, APRN's National Provider Identifier (NPI) is 1003248634, issued on Aug 6, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Abigail Klein, APRN located?

The NPPES record lists a practice address at 20 Bank Street, Granby, CT, 06035. Phone: (866) 389-2727. Providers update this record themselves, so call before visiting.

How can I verify Abigail Klein, APRN's license?

NPPES lists Connecticut license number 5427, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Abigail Klein, APRN prescribe under Medicare Part D?

In 2024, Abigail Klein, APRN had 527 Medicare Part D claims for 148 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.

What is Abigail Klein, APRN's Medicare quality score?

The 2023 MIPS final score is 84.5 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.