Marzena Gryczewski, APRN
Family Nurse Practitioner · Newington, CT
Marzena Gryczewski, APRN is a family nurse practitioner with a practice address in Newington, Connecticut, and NPI 1548500663, issued on Feb 27, 2013. Check the license (Connecticut 004919, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marzena Gryczewski
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 004919 CT
Self-reported in NPPES; status is on the state search - Practice location
- 555 Willard Ave # 506, Newington, CT 06111
- Phone
- (860) 256-1553
- Enumerated
- Feb 27, 2013
- Record last updated
- Apr 7, 2023
- Fax
- (860) 667-6799
- Medicaid ID
- 004049193 CT
- Medicare enrollment
- Enrolled (PECOS I20130618000104); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,669 in Connecticut → Look up another NPI →
Verify Marzena Gryczewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 004919Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family nurse practitioner in 2024
142 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Sertraline Hcl26 claims
- Levothyroxine Sodium15 claims
- Amlodipine Besylate13 claims
- Atorvastatin Calcium13 claims
- Chlorthalidone13 claims
- Gabapentin13 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): 86.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $332.42
3 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- 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.
Marzena Gryczewski among 2,669 family nurse practitioner records in Connecticut
Marzena Gryczewski, APRN 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 fileYes · 62% of these records are
- Graduated2011 · median 2018 among the 1,664 with a school on file
- Record last updated2023 · 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).
14 family nurse practitioner records list a practice address in Newington
They are 14 of the 722 NPPES records with a practice address in Newington, and 2,669 family nurse practitioner records in Connecticut.
All 2,669 in Connecticut → Every provider in Newington → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Christopher Cruz, APRNNewington, CT 061111780159467
- Domenic Flammia, FNP-CNewington, CT 061111487353223
- Alla KirzonNewington, CT 061111952841199
- Alicia Kolacz, APRNNewington, CT 061111184431736
- Katarzyna LessardNewington, CT 061111760897011
- Godfred Oppong, APRNNewington, CT 061111952261992
- Prekshaben Patel, F.N.PNewington, CT 061111295077931
- Jennifer Pupek, MS, APRN, FNP-CNewington, CT 061111336766070
Common questions
What is Marzena Gryczewski, APRN's NPI number?
Marzena Gryczewski, APRN's National Provider Identifier (NPI) is 1548500663, issued on Feb 27, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Marzena Gryczewski, APRN located?
The NPPES record lists a practice address at 555 Willard Ave # 506, Newington, CT, 06111. Phone: (860) 256-1553. Providers update this record themselves, so call before visiting.
How can I verify Marzena Gryczewski, APRN's license?
NPPES lists Connecticut license number 004919, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Marzena Gryczewski, APRN prescribe under Medicare Part D?
In 2024, Marzena Gryczewski, APRN had 142 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Marzena Gryczewski, APRN's MIPS final score?
The 2023 MIPS final score is 86.4 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.