Michael Edward Mazeiko, APRN
Family Nurse Practitioner · New Haven, CT
Michael Edward Mazeiko, APRN is a family nurse practitioner with a practice address in New Haven, Connecticut, and NPI 1124809009, issued on Oct 9, 2023. Check the license (Connecticut 12495, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Edward Mazeiko
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 12495 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (023) 688-4242
- Enumerated
- Oct 9, 2023
- Record last updated
- Oct 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20240320000498); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,669 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Michael Edward Mazeiko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 12495Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family nurse practitioner in 2024
116 Medicare Part D claims for 57 beneficiaries, against an average of 1,305 among the 140,557 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.
Bills Medicare through 2 group practices
- Northeast Medical Group IncNew Haven, CT
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Edward Mazeiko among 2,669 family nurse practitioner records in Connecticut
Michael Edward Mazeiko, 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 2023, is newer than 76% of them.
- NPI issued2023 · 76% of these records are older, 16% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2023 · 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).
239 family nurse practitioner records list a practice address in New Haven
They are 239 of the 9,793 NPPES records with a practice address in New Haven, and 2,669 family nurse practitioner records in Connecticut.
All 2,669 in Connecticut → Every provider in New Haven → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Mary Ellen Baldino, APRNNew Haven, CT 065101417958364
- Joanna Cole, APRNNew Haven, CT 065101063678233
- Hillary Drumm, APRNNew Haven, CT 065101114175247
- Dana Forlano, APRNNew Haven, CT 065101578729570
- Pamela Garofalo, APRNNew Haven, CT 065101801027834
- Patricia Garrett, APRNNew Haven, CT 065101114909850
- Patricia Giannelli, APRNNew Haven, CT 065101689614638
- Rachel Kinzler, APRNNew Haven, CT 065101952542334
Common questions
What is Michael Edward Mazeiko, APRN's NPI number?
Michael Edward Mazeiko, APRN's National Provider Identifier (NPI) is 1124809009, issued on Oct 9, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Michael Edward Mazeiko, APRN located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (023) 688-4242. Providers update this record themselves, so call before visiting.
How can I verify Michael Edward Mazeiko, APRN's license?
NPPES lists Connecticut license number 12495, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Edward Mazeiko, APRN prescribe under Medicare Part D?
In 2024, Michael Edward Mazeiko, APRN had 116 Medicare Part D claims for 57 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.