Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC
Family Nurse Practitioner · East Northport, NY
Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC is a family nurse practitioner with a practice address in East Northport, New York, and NPI 1750858288, issued on Nov 2, 2018. Check the license (New York F343483-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Malgorzata Krystyna Mierzejewski
- Credential
- MSN,RN,FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- F343483-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 7 Pulaski RD, East Northport, NY 11731
- Phone
- (631) 261-3322
- Enumerated
- Nov 2, 2018
- Record last updated
- Nov 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190329001969); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 14,805 in New York → Look up another NPI →
Also registered at 7 Pulaski RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Theodore Goldman, M.D.Obstetrics & Gynecology Physician1912968181
- Arianna Suprina, N.P.Family Nurse Practitioner1265108328
- John Wagner, M.D.Obstetrics & Gynecology Physician1538120704
Verify Malgorzata Krystyna Mierzejewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license F343483-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family nurse practitioner in 2024
124 Medicare Part D claims for 64 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Tamsulosin Hcl34 claims
- Estradiol13 claims
- Amoxicillin-Clavulanate Potass12 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 MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Shore-Lij Medical PCGreenlawn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Malgorzata Krystyna Mierzejewski among 14,805 family nurse practitioner records in New York
Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC is one of 14,805 family nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 47% of them.
- NPI issued2018 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2018 · median 2019 among the 7,239 with a school on file
- Record last updated2018 · 45% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 family nurse practitioner records list a practice address in East Northport
They are 10 of the 494 NPPES records with a practice address in East Northport, and 14,805 family nurse practitioner records in New York.
All 14,805 in New York → Every provider in East Northport → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Murielle Augustin-St. Preux, FNPEast Northport, NY 117311346410644
- Laura Feigenbaum, NPEast Northport, NY 117311396555918
- Sharon Friedman-Urevich, MSN,RN,FNP-C, PMHNPEast Northport, NY 117311134182447
- Sameya Omarkheil, FNPEast Northport, NY 117311003747676
- Lindsay Ryan, FNPEast Northport, NY 117311962131474
- Arianna Suprina, N.P.East Northport, NY 117311265108328
- Lauretta Tobani, NURSE PRACTITIONEREast Northport, NY 117311841523172
- Gail Valentin, NPEast Northport, NY 117311174869051
Common questions
What is Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC's NPI number?
Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC's National Provider Identifier (NPI) is 1750858288, issued on Nov 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC located?
The NPPES record lists a practice address at 7 Pulaski RD, East Northport, NY, 11731. Phone: (631) 261-3322. Providers update this record themselves, so call before visiting.
How can I verify Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC's license?
NPPES lists New York license number F343483-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC prescribe under Medicare Part D?
In 2024, Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC had 124 Medicare Part D claims for 64 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Malgorzata Krystyna Mierzejewski, MSN,RN,FNP-BC's MIPS final score?
The 2023 MIPS final score is 91.3 of 100. 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.