Karen Eileen Mazei
Family Nurse Practitioner · New Castle, DE
Karen Eileen Mazei is a family nurse practitioner with a practice address in New Castle, Delaware, and NPI 1629565676, issued on Apr 16, 2018. Check the license (Delaware L1-0033185, as entered in NPPES) with the Delaware board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Karen Eileen Mazei
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- L1-0033185 DE
Self-reported in NPPES; status is on the state search - Practice location
- 191 Christiana RD, New Castle, DE 19720
- Phone
- (302) 322-1794
- Enumerated
- Apr 16, 2018
- Record last updated
- Apr 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 191 Christiana RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kimberly Mirra, D.C.Chiropractor1043471550
- Khaja Yezdani, MDFamily Medicine Physician1548232226
- Vijaya Yezdani, MDFamily Medicine Physician1699747386
Verify Karen Eileen Mazei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license L1-0033185Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19 family nurse practitioner records list a practice address in New Castle
They are 19 of the 766 NPPES records with a practice address in New Castle, and 709 family nurse practitioner records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 19 in New Castle → All 709 in Delaware → Every provider in New Castle →
Other family nurse practitioner records in Delaware
- Sara Abbo, CRNPNewark, DE1104223007
- Jessica Abbott, MSN FNP-BC, NP-CMilford, DE1467229542
- Jillian Abbott, FNP-CSelbyville, DE1114654472
- Shaakira AbdullahWilmington, DE1073028189
- Katherine Abernethy, NP-CNew Castle, DE1629477153
- Cecilia Aboagye, FNPHistoric New Castle, DE1023584430
- Cynthia Abrefa-KodomGeorgetown, DE1649975624
- Nanaawawu Adeoye, NPDover, DE1750804118
- Olufolake Adepoju, DNPNewark, DE1285298679
- Tara AgwuMiddletown, DE1689487043
Common questions
What is Karen Eileen Mazei's NPI number?
Karen Eileen Mazei's National Provider Identifier (NPI) is 1629565676, issued on Apr 16, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Karen Eileen Mazei located?
The NPPES record lists a practice address at 191 Christiana RD, New Castle, DE, 19720. Phone: (302) 322-1794. Providers update this record themselves, so call before visiting.
How can I verify Karen Eileen Mazei's license?
NPPES lists Delaware license number L1-0033185, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity 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. 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.