NPPES file of Aug 9, 2026

Kathryn Walck, FNP

Family Nurse Practitioner · Groton, CT

Kathryn Walck, FNP is a family nurse practitioner with a practice address in Groton, Connecticut, and NPI 1245667583, issued on Oct 1, 2013. Check the license (Connecticut 5552, 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
1245667583
Name
Kathryn Walck
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
5552 CT
Self-reported in NPPES; status is on the state search
Practice location
915 Poquonnock RD, Groton, CT 06340
Phone
(860) 446-0144
Enumerated
Oct 1, 2013
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
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 915 Poquonnock RD

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

  1. Emma Donnell, PHARMD, RPHPharmacist1578244356
  2. Christina Gentile, PA-CPhysician Assistant1780293548
  3. Michelle GreyPharmacist1033628250
  4. Jan JensPharmacist1134665318
  5. Janet Mattiucci, RPHPharmacist1740738475
  6. Mohamed MostafaPharmacist1295578102

Verify Kathryn Walck 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 5552
    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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99% fewer Medicare Part D claims than the average family nurse practitioner in 2024

16 Medicare Part D claims for 13 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Kathryn Walck16
  2. Specialty average1,305

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): 87.1 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 score78.3
  2. Costout of 100 · 30%97.0
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Kathryn Walck among 2,669 family nurse practitioner records in Connecticut

Kathryn Walck, FNP is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% 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 25% of them.

  • NPI issued2013 · 25% of these records are older, 71% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2018 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 family nurse practitioner records list a practice address in Groton

They are 24 of the 734 NPPES records with a practice address in Groton, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Joanna Breton, APRNGroton, CT 063401063997245
  2. Nina Erlanger, DNP, APRNGroton, CT 063401528534641
  3. Susan Kohn, F.N.P.Groton, CT 063401437284395
  4. Cynthia L'Heureux, APRNGroton, CT 063401033178926
  5. Lynda Lombardi, NP-CGroton, CT 063401992128128
  6. Ted Pagulayan, FNP-BC, APHN-BCGroton, CT 063401689654394
  7. Angela Prentiss, APRNGroton, CT 063401285048579
  8. Nicole RoyGroton, CT 063401720494966

Common questions

What is Kathryn Walck, FNP's NPI number?

Kathryn Walck, FNP's National Provider Identifier (NPI) is 1245667583, issued on Oct 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Walck, FNP located?

The NPPES record lists a practice address at 915 Poquonnock RD, Groton, CT, 06340. Phone: (860) 446-0144. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Walck, FNP's license?

NPPES lists Connecticut license number 5552, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Kathryn Walck, FNP prescribe under Medicare Part D?

In 2024, Kathryn Walck, FNP had 16 Medicare Part D claims for 13 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Kathryn Walck, FNP's MIPS final score?

The 2023 MIPS final score is 87.1 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.