NPPES file of Aug 9, 2026

Clara Gwen Kowalsky, NP

Family Nurse Practitioner · Glastonbury, CT

Clara Gwen Kowalsky, NP is a family nurse practitioner with a practice address in Glastonbury, Connecticut, and NPI 1194492694, issued on Aug 24, 2021. Check the license (Connecticut 9927, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194492694
Name
Clara Gwen Kowalsky
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
9927 CT
Self-reported in NPPES; status is on the state search
Practice location
210 New London Tpke, Glastonbury, CT 06033
Phone
(860) 633-1543
Enumerated
Aug 24, 2021
Record last updated
Jul 10, 2026
Medicare enrollment
Enrolled (PECOS I20221007001448); 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 210 New London Tpke

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

  1. Penny Lowenstein, MDDermatology Physician1992798292
  2. Athanasia Syrengelas, MD PHDDermatology Physician1417942715
  3. Alison Turkowski, PA-CPhysician Assistant1760856835
  4. Alissa Watson, APRNNurse Practitioner1174032155
  5. Mark Weremchuk, MDGeriatric Psychiatry Physician1487642005
  6. Bella Zubkov, MDDermatology Physician1083607386

Verify Clara Gwen Kowalsky 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 9927
    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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43% fewer Medicare Part D claims than the average family nurse practitioner in 2024

743 Medicare Part D claims for 349 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Clara Kowalsky743
  2. Specialty average1,305

Most prescribed

  1. Ketoconazole150 claims
  2. Ammonium Lactate89 claims
  3. Metronidazole70 claims
  4. Mupirocin57 claims
  5. Azelaic Acid53 claims
  6. Triamcinolone Acetonide42 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.

Industry payments in 2024: $2,517.49

108 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Clara Kowalsky$2,517.49
  2. Specialty average$650.95

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

Bills Medicare through 2 group practices

  1. Dermatology Associates OF Eastern CT LLCGlastonbury, CT
  2. Dermatology Associates OF Glastonbury LLCGlastonbury, CT

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

Clara Gwen Kowalsky among 2,669 family nurse practitioner records in Connecticut

Clara Gwen Kowalsky, NP 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 2021, is newer than 65% of them.

  • NPI issued2021 · 65% of these records are older, 29% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2021 · median 2018 among the 1,664 with a school on file
  • Record last updated2026 · 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).

45 family nurse practitioner records list a practice address in Glastonbury

They are 45 of the 960 NPPES records with a practice address in Glastonbury, and 2,669 family nurse practitioner records in Connecticut.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Patricia Baginski, FNP-CGlastonbury, CT 060331801052279
  2. Ana Kristia Bermudez, NPGlastonbury, CT 060331881873750
  3. Vanessa BollingGlastonbury, CT 060331902282569
  4. Patricia Bouwer, RN,MS,FNPGlastonbury, CT 060331285891051
  5. Sandra Criscuolo, APRNGlastonbury, CT 060331487052189
  6. Lenore Crosson, FNP-BCGlastonbury, CT 060331689648974
  7. Nicole Fearon, APRNGlastonbury, CT 060331073942546
  8. Debbie Gould, FNP, APRNGlastonbury, CT 060331124398136

Common questions

What is Clara Gwen Kowalsky, NP's NPI number?

Clara Gwen Kowalsky, NP's National Provider Identifier (NPI) is 1194492694, issued on Aug 24, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Clara Gwen Kowalsky, NP located?

The NPPES record lists a practice address at 210 New London Tpke, Glastonbury, CT, 06033. Phone: (860) 633-1543. Providers update this record themselves, so call before visiting.

How can I verify Clara Gwen Kowalsky, NP's license?

NPPES lists Connecticut license number 9927, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Clara Gwen Kowalsky, NP prescribe under Medicare Part D?

In 2024, Clara Gwen Kowalsky, NP had 743 Medicare Part D claims for 349 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.