Martyna Ewa Karwowska
Nurse Practitioner · New Britain, CT
Martyna Ewa Karwowska is a nurse practitioner with a practice address in New Britain, Connecticut, and NPI 1427739267, issued on Jul 25, 2023. Check the license (Connecticut 12015, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Martyna Ewa Karwowska
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 12015 CT
Self-reported in NPPES; status is on the state search - Practice location
- 100 Grand St, New Britain, CT 06052
- Phone
- (860) 224-5011
- Enumerated
- Jul 25, 2023
- Record last updated
- Jul 25, 2023
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 922 in Connecticut → Look up another NPI →
Also registered at 100 Grand St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Farhana Alladin, M.DInternal Medicine Physician1891361101
- Maria Allen, PA-CSurgical Physician Assistant1093034431
Verify Martyna Ewa Karwowska in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 12015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nurse practitioner in 2024
17 Medicare Part D claims, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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: $31.46
1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Martyna Ewa Karwowska among 922 nurse practitioner records in Connecticut
Martyna Ewa Karwowska is one of 922 nurse practitioner records with a practice address in Connecticut. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 79% of them.
- NPI issued2023 · 79% of these records are older, 15% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2023 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 nurse practitioner records list a practice address in New Britain
They are 23 of the 1,772 NPPES records with a practice address in New Britain, and 922 nurse practitioner records in Connecticut.
All 922 in Connecticut → Every provider in New Britain → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Christine Anane, APRNNew Britain, CT 060521558604553
- Amy Caulkins, APRNNew Britain, CT 060521407575491
- Susan Dagostino, APRNNew Britain, CT 060521093743908
- Nancy Hemingway, APRNNew Britain, CT 060521255318143
- Alicja Jedrychowski, A-GPCNPNew Britain, CT 060521528674629
- Cynthia Kociszewski, APRNNew Britain, CT 060521326025248
- Adwoa Larbi, APRNNew Britain, CT 060521568295269
- Jenna Lundquist, DNP-FNP-BCNew Britain, CT 060521972331114
Common questions
What is Martyna Ewa Karwowska's NPI number?
Martyna Ewa Karwowska's National Provider Identifier (NPI) is 1427739267, issued on Jul 25, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Martyna Ewa Karwowska located?
The NPPES record lists a practice address at 100 Grand St, New Britain, CT, 06052. Phone: (860) 224-5011. Providers update this record themselves, so call before visiting.
How can I verify Martyna Ewa Karwowska's license?
NPPES lists Connecticut license number 12015, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Martyna Ewa Karwowska prescribe under Medicare Part D?
In 2024, Martyna Ewa Karwowska had 17 Medicare Part D claims; the average among nurse practitioner prescribers was 1,109. 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.